CN114919714B - Dynamic load excitation bending gravitational wave annular pool experimental device - Google Patents

Abstract

The invention belongs to the technology of design and manufacture of ships and ocean engineering equipment, in particular to a dynamic load excitation bending gravitational wave annular pool experimental device which comprises an annular pool, an elastic film, a pool base, a pallet, a rotating platform, a rotating arm, a high-speed camera, a schlieren mirror, a point light source, an adjustable air pump, a wireless router, a socket and a low-temperature box. The schlieren mirror can obtain the waveform characteristics of the bending gravitational wave under the excitation of the moving pulsating load by matching with the high-speed camera arranged on the rotating arm, and provides support for the research and development design of polar related equipment and the validity verification of a numerical policy analysis algorithm.

Description

A dynamic load-induced bending gravity wave annular pool experimental device

Technical field

The invention belongs to the design and manufacturing technology of ships and ocean engineering equipment. Specifically, it is a dynamic load-excited bending gravity wave annular pool experimental device.

Background technique

With global warming, the temperature in the Arctic region is rising, the ice is melting, and the ice area is shrinking. In the context of the global economic layout and the development and utilization of Arctic resources, the commercial value of the Arctic waterways has become increasingly prominent, and its importance in global shipping continues to rise. The more shipping companies begin to test the Arctic waterways, it will have a milestone significance for maritime transportation, global economic layout and the development and utilization of Arctic resources. Compared with the traditional Eurasian waterway, the total voyage and navigation time of the Arctic waterway are shorter, which means that time-related costs such as ship fuel, labor, materials, including financial value, are also lower.

Since 2007, the Arctic Northeast Passage has been completely ice-free in summer. The completely ice-free period can last for 30-40 days. During this period, commercial ships can independently shuttle through the Arctic waterway. However, in order to make regular use of the Arctic waterways, icebreakers are usually used to open interglacial waterways during the ice season and lead commercial shipping ships through the Arctic. Therefore, the development of marine equipment to efficiently break ice and open up polynya channels is crucial. Compared with traditional displacement icebreakers that rely on their own gravity or collision-type icebreakers, air-cushion icebreakers have the advantages of high efficiency and adaptability to shallow water operations. The air-cushion icebreaker uses the principle of surface effect to form an air-cushion dynamic load on the ice surface, which excites the ice surface to form curved gravity waves, thereby inducing sea ice fracture and destruction.

At present, the theoretical research on the formation of curved gravity waves on the ice surface induced by the air cushion dynamic load to break ice is insufficient. At the same time, the existing pool facilities cannot meet the needs of relevant experimental research, which greatly limits the research and development design of this type of equipment. Therefore, the invention of a dynamic load-excited bending gravity wave annular pool experimental device and measurement method is very important for the development of efficient polar icebreaking equipment.

Contents of the invention

In view of the fact that the existing pool facilities cannot meet the experimental research needs for the formation of bending gravity waves on the ice surface excited by the dynamic load of the air cushion, the present invention aims to provide an annular pool experimental device for the bending gravity waves excited by the dynamic load.

In order to achieve the above objects, the specific technical solutions adopted by the present invention are as follows:

A dynamic load-induced bending gravity wave annular pool experimental device, including an annular pool, an elastic membrane, a pool base, a pallet, a rotating platform, a rotating arm, a high-speed camera, a schlieren mirror, a point light source, an adjustable air pump, a wireless router, and a plug-in row, cryogenic chamber. Among them, the elastic film floats on the surface of the annular pool, and the annular pool is supported by the pool base; the rotating platform is set at the center of the annular pool; the rotating arm is installed on the rotating platform, and the rotating platform can achieve uniform rotation with adjustable rotation speed of the rotating arm; the rotating arm It is equipped with a high-speed camera, a schlieren mirror, a point light source, an adjustable air pump, a wireless router, and a plug strip; the plug strip provides working power for the high-speed camera, point light source, adjustable air pump, and wireless router; the high-speed camera, the adjustable air pump jet nozzle , Schlieren mirror, the point light source is set to the same vertical direction, the air nozzle blows air vertically to the elastic film floating on the water surface, and as the mechanical arm rotates at a constant speed, a curved gravity wave is generated. The light path generated by the point light source and the Schlieren mirror, The bending gravity wave waveform is recorded through a high-speed camera; the high-speed camera is connected to a wireless router, and the wireless router converts the image information into a wireless signal and transmits it to the computer for data analysis; the above-mentioned device can also be installed on the pallet as a whole and transported to a low temperature by a forklift In the box, an ice film was formed on the surface of the annular pool, and the dynamic load-induced bending gravity wave ice-breaking experiment was carried out.

In a further improvement of the present invention, the annular pool includes an internal liquid, a rib support, and a pool positioning hole; the cross section of the annular pool is a rectangle; a number of rib supports are provided on the outer wall of the outer ring of the annular pool for placing Carrying the weight of the circular pool on the pool base.

In a further improvement of the present invention, the rib plate support is composed of two triangular plates and a rectangular bottom plate. A pool positioning hole is provided at the center of the rectangular bottom plate for positioning the annular pool at the center of the pool base.

In a further improvement of the present invention, the pool base includes rubber skin, annular panels, base pillars, base triangular plates, base beams, footings, and pool positioning posts. The rubber skin is provided with a plurality of positioning holes with a circle as the center.

In a further improvement of the present invention, the rubber skin is arranged on the annular panel through the positioning hole to act as a shock absorber for the annular pool; the end surface of the bottom end of the base pillar is provided with a foot.

In a further improvement of the present invention, the base pillars and base beams are made of aluminum alloy profiles. Four base pillars and four base beams form a rectangular frame structure. The rectangular frame is positioned with the center hole axis of the base pillar and is provided with a mounting hole under the annular panel; The base triangular plate is fixed at the upper right angle where the base pillar and the base beam are connected.

In a further improvement of the present invention, the rotating arm includes a camera cross arm, a camera vertical arm, a rotating arm triangle, a rotating support, a camera bracket, an upper Schlieren arm triangle, an upper Schlieren arm, a lower Schlieren arm, a lower Schlieren arm triangle, and a lower Schlieren arm. Schlieren vertical arm, rotating support triangular plate; the camera cross arm, camera vertical arm, rotating support, upper Schlieren arm, lower Schlieren arm and lower Schlieren vertical arm are all made of aluminum alloy profiles; the rotating support is set on the rotating At the center of the platform panel; the rotating pillar triangular plates are arranged on the four sides of the bottom end of the rotating pillar, and are fixed to the rotating platform panel; the two ends of the camera cross arm are arranged on the top of the rotating pillar, one long and one short; the camera is vertical The arm is vertically arranged on the bottom surface of the long section of the camera cross arm, and the side surface of the camera vertical arm is aligned with the end surface of the long section of the camera cross arm; the rotating arm triangular plate is set at the right angle where the camera cross arm and the rotating pillar are connected to the camera vertical arm. to a fixed effect. The camera bracket is a right-angled support plate, with the long right-angled surface set on the left side of the camera's vertical arm, and the short right-angled surface facing the front side of the camera's vertical arm; the upper Schlieren arm is set on the side of the middle part of the rotating pillar, and is connected with the camera at the same time. The transverse arms are on the same side; the rotating arm triangular plate is arranged at the upper right angle where the rotating pillar and the upper Schlieren arm are connected; the right-angled surface of the upper Schlieren arm triangular plate is arranged on the upper side of the upper Schlieren arm, and the other right-angled surface Aligned with the end face of the upper schlieren arm; the lower schlieren arm is arranged on the bottom side of the rotating pillar and on the same side as the camera cross arm; the rotating arm triangular plate is arranged at the upper right angle where the rotating pillar and the lower schlieren arm are connected; The upper end surface of the lower Schlieren vertical arm is arranged on the lower side of the lower Schlieren arm, and at the same time, the side surface of the lower Schlieren vertical arm is aligned with the end surface of the lower Schlieren arm; the lower Schlieren arm triangular plate is arranged on the lower Schlieren arm and the lower Schlieren arm. The right angles where the vertical arms of the schlieren join.

In a further improvement of the present invention, the upper schlieren arm is arranged above the annular pool, and the lower schlieren arm is arranged below the annular pool.

In a further improvement of the present invention, the high-speed camera is arranged on the short right-angled surface of the camera bracket, and the lens direction is kept vertically downward; the schlieren mirrors are respectively arranged on the upper schlieren arm triangular plate and the front side of the lower schlieren vertical arm; so The point power supply is arranged on the front side of the lower Schlieren vertical arm and at the same time below the Schlieren mirror.

In a further improvement of the present invention, the wireless router is arranged on the left side of the short section of the camera cross arm and the plane position of the rotating arm triangular plate; the plug strip is arranged on the left side of the rotating pillar; and the adjustable air pump is arranged on the opposite side of the rotating pillar. ; The adjustable air pump air nozzle is arranged at the end face of the upper schlieren arm, and the air injection direction is vertically downward.

In a further improvement of the present invention, the rotating platform includes a rotating platform panel, a panel base, a servo motor, a panel triangular plate, a panel pillar, a pillar triangular plate, a through-hole conductive slip ring, a bearing, and a precision planetary reducer; the top ends of the panel pillars are aligned and arranged on the panel The four corners of the bottom surface of the base; the panel triangle plate is arranged at all right angles where the panel pillar is connected to the panel base; the bottom end of the panel pillar is arranged at the middle position of the pallet; the pillar triangle plate is arranged at the panel pillar, and the pallet is connected The outer right angle of ; The through-hole conductive slip ring is set in the slip ring hole in the panel base and is fixedly installed by the slot; the rotating platform panel is embedded with the through-hole conductive slip ring, the inner ring of the bearing, and the output shaft of the precision planetary reducer through a flat key connect.

In a further improvement of the present invention, the low-temperature box includes a door, a temperature display screen, an observation window, a door handle slot, an interior light, and an evaporator; the rotating axis of the door is set on the left side; and the temperature display screen is set at the middle top of the door. position; the observation window is set in the upper middle position of the box door; the door handle groove is set on the right side of the box door; the interior light is set above the inside of the box; the evaporator is set on the front of the interior; the low temperature box also includes Corresponding refrigeration system.

In a further improvement of the present invention, the rotating platform panel includes a panel, a shaft sleeve, a wire hole, a shaft hole, a keyway, and a countersunk hole; the panel is circular and integrated with the shaft sleeve; the wire hole is set at 45 with the center of the panel as the origin. On the ° line, the rotor wire of the through-hole conductive slider passes through the wire hole; the shaft hole and the keyway are set in the shaft sleeve; the countersunk hole is set on the bottom surface of the panel and on the dividing line with the center of the panel as the origin.

In a further improvement of the present invention, the panel base includes a base body, a base plate, a slot, a wire slot, a slip ring hole, a bearing hole, and a rectangular slot; the inner wall of the base is provided with a slot for fixing the through-hole conductive slip ring; The side wall of the base body is provided with a wire trough, and the stator wire of the through-hole conductive slip ring passes through the wire trough; the slip ring hole is arranged above the wire trough; the bearing hole is arranged below the wire trough; and the rectangular groove is arranged on the base plate The bottom surface is used to install servo motors and precision planetary reducers.

Beneficial effects of the present invention: Compared with existing experimental research methods, the present invention can realize research on the ice breaking mechanism of dynamic load-excited bending gravity waves. Together with the high-speed camera installed on the rotating arm, the adjustable air pump, and the schlieren mirror, the waveform characteristics of bending gravity waves under the excitation of moving pulsating loads can be obtained, providing support for the research and development and design of polar-related equipment and the verification of the effectiveness of numerical policy analysis algorithms.

Description of the drawings

Figure 1 is a schematic diagram of the general assembly with a cryogenic box of the present invention;

Figure 2 is a schematic structural diagram of the present invention without a cryogenic box;

Figure 3 is a schematic diagram of the rotating arm-rotating platform mechanism in the present invention;

Figure 4 is a schematic diagram of the annular pool-pool base in the present invention;

Figure 5 is an exploded view of the annular pool-pool base in the present invention;

Figure 6 is a schematic diagram of the rotating arm in the present invention;

Figure 7 is a schematic diagram of the rotating platform mechanism in the present invention;

Figure 8 is an exploded view of the rotating platform mechanism in the present invention;

Figure 9 is a schematic structural diagram of the rotating platform panel in the present invention;

Figure 10 is a top structural view of Figure 9;

Figure 11 is a three-dimensional structural view of Figure 9;

Figure 12 is a schematic structural diagram of the rotating platform base in the present invention;

Figure 13 is a schematic structural diagram of the A-A section in Figure 12;

FIG. 14 is a schematic three-dimensional structural diagram of FIG. 12 .

In the picture, 1--annular pool, 1-1--liquid, 1-2--stiff plate support, 1-3--pool positioning hole, 2--pool base, 2-1--rubber skin, 2 -2--ring panel, 2-3--base pillar, 2-4--base triangle, 2-5--base beam, 2-6--foot, 2-7--pool positioning column, 2- 8--Positioning hole, 3--Swivel arm, 3-1--Camera cross arm, 3-2--Camera vertical arm, 3-3--Swivel arm triangular plate, 3-4--Rotation support, 3-5 --Camera stand, 3-6--Upper Schlieren arm triangle, 3-7--Upper Schlieren arm, 3-8--Lower Schlieren arm, 3-9--Lower Schlieren arm triangle, 3-10 --Lower schlieren vertical arm, 3-11--Rotating support triangular plate, 4--Elastic membrane, 5--Rotating platform, 5-1--Rotating platform panel, 5-1-1--Panel, 5-1 -2--shaft sleeve, 5-1-3--wire hole, 5-1-4--shaft hole, 5-1-5--keyway, 5-1-6--countersunk hole, 5-2 --Panel base, 5-2-1--Base body, 5-2-2--Base plate, 5-2-3--Card slot, 5-2-4--Wire trough, 5-2-5 --Slip ring hole, 5-2-6--Bearing hole, 5-2-7--Rectangular slot, 5-3--Servo motor, 5-4--Panel triangular plate, 5-5--Panel support, 5-6--pillar triangular plate, 5-7--through-hole conductive slip ring, 5-8--bearing, 5-9--precision planetary reducer, 6--pallet, 7--high-speed camera, 8- -Schlieren mirror, 9--point light source, 10--wireless router, 11--plug strip, 12--adjustable air pump, 12-1--air nozzle, 13--low temperature box, 13-1--box Door, 13-2--temperature display, 13-3--observation window, 13-4--door handle slot, 13-5--interior light, 13-6--evaporator.

Implementation

In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and examples. The examples are only used to explain the present invention and do not limit the scope of protection of the present invention.

Example: A dynamic load-excited bending gravity wave annular pool experimental device can be used to study the wave-making characteristics of elastic films with different physical properties, as well as the effects of air cushion load amplitude, frequency and speed. The structure of the device is shown in Figure 1-3, which mainly includes an annular pool 1, a pool base 2, a rotating arm 3, an elastic membrane 4, a rotating platform 5, a pallet 6, a high-speed camera 7, a schlieren mirror 8, and a point light source 9 , wireless router 10, power strip 11, adjustable air pump 12, low temperature box 13; the annular pool 1 shown is set on the pool base 2, and the pool base 2 plays the role of positioning and fixing the annular pool 1, reducing vibration and keeping the water surface stationary; The elastic film 4 shown floats on the water surface of the annular pool 1; the rotating arm 3 shown is arranged on the rotating platform 5, and the rotating arm 3 is driven by the rotating platform 5 to rotate at a uniform speed; the rotating arm 3 shown is provided with a high-speed camera 7. Schlieren mirror 8, point light source 9, wireless router 10, plug strip 11, adjustable air pump 12; plug strip 11 provides working power for high-speed camera 7, point light source, wireless router 10, adjustable air pump 12; high-speed camera 7 , Schlieren mirror 8, adjustable air pump air nozzle 12-1, and point light source 9 are set in the same vertical direction; the adjustable air pump air nozzle 12-1 blows air vertically to the elastic film 4 floating on the water surface. The uniform rotation of the robotic arm 3 generates a curved gravity wave. The schlieren mirror 8 and the point light source 9 form a light path, and the curved gravity wave waveform is recorded through the high-speed camera 7. The high-speed camera 7 shown is connected to the wireless router 10, and the wireless router 10 converts the image information. The wireless signal is transmitted to the computer for data analysis; the above-mentioned device can also be installed on the pallet 6 as a whole; the pallet 6 is lifted by a forklift to transport the device to the low-temperature box 13 to perform dynamic load-induced bending gravity wave icebreaking in low-temperature environments. experiment.

As shown in Figure 4-5, the annular pool 1 includes an internal liquid 1-1, a rib support 1-2, and a pool positioning hole 1-3; the annular pool 1 has a rectangular cross-section; the annular pool 1 has a rectangular cross-section; 1. A number of rib supports 1-2 are provided on the outer wall of the outer ring; the rib supports 1-3 shown are composed of two triangular plates and a rectangular bottom plate; a pool positioning hole is provided at the center of the rib supports 1-2 shown 1-3.

The pool base 2 shown in Figure 4-5 includes rubber skin 2-1, annular panel 2-2, base pillar 2-3, base triangular plate 2-4, base beam 2-5, foot 2-6, pool positioning Column 2-7. The rubber skin 2-1 shown is provided with a plurality of positioning holes 2-8 with a circle as the center; the rubber skin 2-1 shown is provided on the annular panel 2-2 through the positioning holes 2-8; the base support 2-3 is shown at the bottom Footings 2-6 are provided on the end surfaces; the base pillars 2-3 and the base beams 2-5 shown are aluminum alloy profiles. The four base pillars 2-3 and the four base beams 2-5 form a rectangular frame structure. The rectangular frame is The center hole axis of the base pillar 2-3 is positioned under the annular panel 2-2; the base triangular plate 2-4 shown is fixed at the upper right angle where the base pillar 2-3 and the base beam 2-5 are connected.

The rotating arm 3 as shown in Figure 6 includes a camera cross arm 3-1, a camera vertical arm 3-2, a rotating arm triangle 3-3, a rotating support 3-4, a camera bracket 3-5, and an upper Schlieren arm triangle 3- 6. Upper Schlieren arm 3-7, lower Schlieren arm 3-8, lower Schlieren arm triangle 3-9, lower Schlieren vertical arm 3-10, rotating support triangle 3-11; the camera cross arm shown is 3- 1. The camera vertical arm 3-2, the rotating support 3-4, the upper schlieren arm 3-7, the lower schlieren arm 3-8, and the lower schlieren vertical arm 3-10 are all aluminum alloy profiles; the rotating support 3 is shown -4 is arranged at the center of the rotating platform panel 5-1; the rotating pillar triangular plate 3-11 is arranged on the four bottom surfaces of the rotating pillar 3-4, and is fixed to the rotating platform panel; the camera cross arm 3-1 is shown The two ends, one long and one short, are arranged on the top of the rotating support 3-4; the camera vertical arm 3-2 shown is vertically arranged on the bottom of the long section of the camera cross arm 3-1, and the side of the camera vertical arm 3-2 is in contact with the camera cross arm The end faces of the long sections of 3-1 are aligned; the rotating arm triangular plate 3-3 is set at the right angle where the camera cross arm 3-1 and the rotating support 3-4 are connected to the camera vertical arm 3-2 to play a fixing role; as shown The camera bracket 3-5 is a right-angled support plate, the long right-angled surface is set on the left side of the camera vertical arm 3-2, and the short right-angled surface faces the front side of the camera vertical arm 3-2; the upper Schlieren arm 3-7 is shown It is arranged on the middle side of the rotating support 3-4, and is on the same side as the camera cross arm 3-1; the rotating arm triangular plate 3-3 shown is arranged at the upper right angle where the rotating support 3-4 and the upper Schlieren arm 3-7 are connected ; The upper Schlieren arm triangular plate 3-6 is arranged on the upper side of the upper Schlieren arm 3-7, while the other side is aligned with the end face of the upper Schlieren arm 3-7; the lower Schlieren arm 3-8 is arranged on the rotating The bottom side of the pillar 3-4 is on the same side as the camera cross arm 3-1; the rotating arm triangular plate 3-3 is set at the upper right angle where the rotating pillar 3-4 and the lower Schlieren arm 3-8 are connected; as shown The upper end surface of the lower Schlieren vertical arm 3-10 is arranged on the lower side of the lower Schlieren arm 3-8, and at the same time, the side surface of the lower Schlieren vertical arm 3-10 is aligned with the end surface of the lower Schlieren arm 3-8; The shadow arm triangular plate 3-9 is arranged at the right angle where the lower schlieren arm 3-8 and the lower schlieren vertical arm 3-10 are connected.

As shown in Figure 3, the high-speed camera 7 is arranged on the short right-angled surface of the camera bracket 3-5; the schlieren mirrors 8 are respectively arranged on the upper schlieren arm triangular plate 3-6 and the lower schlieren vertical arm 3-10. Side; the power source 9 shown is set on the front side of the lower schlieren vertical arm 3-10, and is set below the schlieren mirror 8; the wireless router is set on the left side of the short section of the camera cross arm 3-1 and the rotating arm triangular plate The plane position of 3-3; the plug strip 11 shown is set on the left side of the rotating support 3-4 and connected to the rotor wire of the through-hole conductive slider 5-7; the adjustable air pump 12 shown is set on the rotating support 3-4 Reverse side: The adjustable air pump air nozzle 12-1 shown is arranged at the end surface of the upper Schlieren arm 3-7, and the air injection direction is vertically downward.

The rotating platform 5 shown in Figure 7-8 includes a rotating platform panel 5-1, a panel base 5-2, a servo motor 5-3, a panel triangle 5-4, a panel support 5-5, a support triangle 5-6, and via holes. Conductive slip rings 5-7, bearings 5-8, and precision planetary reducers 5-9; the tops of the panel pillars 5-5 shown are aligned and arranged at the four corners of the bottom surface of the panel base 5-2; the panel triangular plates 5-4 are set At all right angles where the panel pillar 5-5 and the panel base 5-2 are connected; the bottom end of the panel pillar 5-5 shown is set at the middle position of the pallet; the pillar triangular plate 5-6 shown is set between the panel pillar 5-5 and the panel base 5-2. The outer right angle where the pallet 6 is connected; the output end of the servo motor 5-3 shown is set at the input end of the precision planetary reducer 5-9; the output end of the precision planetary reducer shown is set at the center of the bottom surface of the panel base 5-2 ; The bearing 5-8 shown is set in the bearing hole in the panel base 5-2; the through-hole conductive slip ring 5-7 shown is set in the slip ring hole 5-2-5 in the panel base 5-2, through The card slot 5-2-3 is fixedly installed; the rotating platform panel 5-1 is embedded in the through-hole conductive slip ring 5-7 and the inner ring of the bearing 5-8, and is connected to the output shaft of the precision planetary reducer through a flat key.

The low temperature box 13 shown in Figure 1 includes a door 13-1, a temperature display screen 12-2, an observation window 13-3, a door handle slot 13-4, an interior light 13-5, and an evaporator 13-6; as shown The rotating axis of the box door 13-1 is set on the left; the temperature display screen 13-2 shown is set at the middle top position of the box door 13-1; the observation window 13-3 shown is set at the upper middle position of the box door 13-3; so The door handle slot 13-4 is set on the right side of the box door; the interior light 13-5 is set above the inside of the box; the evaporator 13-6 is set on the front of the inside. The low temperature box 13 includes a door 13-1, a temperature display screen 12-2, an observation window 13-3, a door handle slot 13-4, an interior light 13-5, and an evaporator 13-6; the door 13-1 shown rotates The axis is set on the left; the temperature display screen 13-2 shown is set at the middle top position of the box door 13-1; the observation window 13-3 shown is set at the upper middle position of the box door 13-1; the door handle slot 13- 4 is set on the right side of the box door; the interior light 13-5 is set above the inside of the box; the evaporator 13-6 is set on the front of the inside.

As shown in Figure 9, the rotating platform panel 5-1 includes the panel 5-1-1, the shaft sleeve 5-1-2, the wire hole 5-1-3, the shaft hole 5-1-4, and the keyway 5-1- 5. Countersunk hole 5-1-6; the panel 5-1-1 shown is circular and integrated with the sleeve 5-1-2; the wire hole 5-1-3 shown is set on the panel 5-1 -1 The center is on the 45° line of the origin, and the rotor wire of the through-hole conductive slip ring 5-7 passes through the wire hole 5-1-3; the shaft hole 5-1-4 and the keyway 5-1-5 are set in Inside the shaft sleeve 5-1-2; the countersunk hole 5-1-6 shown is set on the dividing line with the center of the panel 5-1-1 as the origin.

As shown in Figure 10, the panel base 5-2 includes a base body 5-2-1, a base plate 5-2-2, a card slot 5-2-3, a wire trough 5-2-4, and a slip ring hole. 5-2-5, bearing hole 5-2-6, rectangular slot 5-2-7; as shown, the inner wall of the base body 5-2-1 is provided with a slot 5-2-3 for fixing the through-hole conductive slip ring 5 -7; The side wall of the base body 5-2-1 is shown to be provided with a wire slot 5-2-4, and the stator wire of the through-hole conductive slip ring 5-7 passes through the wire slot 5-2-4; the slip ring hole is shown 5-2-5 is set above the wire slot 5-2-4; the bearing hole 5-2-6 shown is set below the wire slot 5-2-4; the rectangular slot 5-2-7 shown is set on the base plate 5-2 -2 Bottom.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have other aspects. Various changes and modifications are possible, which fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A dynamic load excitation bending gravitational wave annular pool experimental device is characterized in that: the intelligent solar energy collecting device comprises an annular water tank (1), a water tank base (2), a rotating arm (3), an elastic film (4), a rotating platform (5), a pallet (6), a high-speed camera (7), a schlieren mirror (8), a point light source (9), a wireless router (10), a power strip (11), an adjustable air pump (12) and a low-temperature box (13), wherein the annular water tank (1) is arranged on the water tank base (2), the elastic film (4) floats on the water surface of the annular water tank (1), the rotating arm (3) is arranged on the rotating platform (5), the rotating arm (3) is driven by the rotating platform (5) to do uniform rotation, and the rotating arm (3) is provided with the high-speed camera (7), the schlieren mirror (8), the point light source (9), the wireless router (10), the power strip (11) and the adjustable air pump (12); the high-speed camera (7), the schlieren mirror (8), the air nozzle (12-1), the point light source (9) are arranged in the same vertical direction, the adjustable air pump air nozzle (12-1) blows air vertically to the elastic film (4) floating on the water surface, along with the uniform rotation of the rotating arm (3), bending gravitational waves are generated, the schlieren mirror (8) and the point light source (9) form a light path, the bending gravitational waves are recorded through the high-speed camera (7), and the high-speed camera (7) is connected with the wireless router (10); the experimental device is integrally arranged on a pallet (6), the pallet (6) is lifted by a forklift to transport the device into a low-temperature box (13), an ice film is made on the upper surface of an annular water tank, a dynamic load excitation bending gravity wave ice breaking experiment is carried out, the annular water tank (1) comprises internal liquid (1-1), a rib plate support (1-2) and a water tank positioning hole (1-3); the cross section of the water tank of the annular water tank (1) is rectangular; a plurality of rib plate supports (1-2) are arranged on the outer wall of the outer ring of the annular water tank (1); the rib plate support (1-3) consists of two triangular plates and a rectangular bottom plate; the water tank positioning device is characterized in that a water tank positioning hole (1-3) is formed in the center of the rib plate support (1-2), the water tank base (2) comprises a rubber sheet (2-1), an annular panel (2-2), a base support column (2-3), a base triangular plate (2-4), a base cross beam (2-5), a foundation (2-6) and a water tank positioning column (2-7); the rubber skin (2-1) is provided with a plurality of positioning holes (2-8) by taking the circle center as the center; the rubber skin (2-1) is arranged on the annular panel (2-2) through the positioning holes (2-8); the end face of the bottom end of the base pillar (2-3) is provided with a foot margin (2-6); the base support posts (2-3), the base cross beams (2-5) are aluminum alloy sections, the four base support posts (2-3) and the four base cross beams (2-5) form a rectangular frame structure, and the rectangular frame positions a mounting hole arranged under the annular panel (2-2) by the central hole axis of the base support posts (2-3); the base triangular plate (2-4) is fixed at the upper right angle of the connection of the base support column (2-3) and the base cross beam (2-5), the rotating arm (3) comprises a camera cross arm (3-1), a camera vertical arm (3-2), a rotating arm triangular plate (3-3), a rotating support column (3-4), a camera support (3-5), an upper schlieren arm triangular plate (3-6), an upper schlieren arm (3-7), a lower schlieren arm (3-8), a lower schlieren arm triangular plate (3-9), a lower schlieren vertical arm (3-10) and a rotating support triangular plate (3-11); the camera cross arm (3-1), the camera vertical arm (3-2), the rotary support (3-4), the upper schlieren arm (3-7), the lower schlieren arm (3-8) and the lower schlieren vertical arm (3-10) are all aluminum alloy sections; the rotary support column (3-4) is arranged at the center of the rotary platform panel (5-1); the rotary support triangular plates (3-11) are arranged on four surfaces at the bottom ends of the rotary supports (3-4) and are fixed with the rotary platform panel; the two ends of the camera cross arm (3-1) are arranged at the top end of the rotary support column (3-4) in a long and short way; the camera vertical arm (3-2) is vertically arranged on the bottom surface of the long section of the camera cross arm (3-1), and the side surface of the camera vertical arm (3-2) is aligned with the end surface of the long section of the camera cross arm (3-1); the rotating arm triangle (3-3) is arranged at a right angle between the camera cross arm (3-1) and the rotating support (3-4) and the camera vertical arm (3-2) to play a role in fixation; the camera support (3-5) is a right-angle support plate, a long right-angle surface is arranged on the left side surface of the camera vertical arm (3-2), and a short right-angle surface is opposite to the front side surface of the camera vertical arm (3-2); the upper schlieren arm (3-7) is arranged on the side surface of the middle part of the rotary support column (3-4) and is positioned on the same side as the camera cross arm (3-1); the rotating arm triangle (3-3) is arranged at an upper right angle where the rotating support column (3-4) is connected with the upper schlieren arm (3-7); one surface of the upper schlieren arm triangular plate (3-6) is arranged on the upper side surface of the upper schlieren arm (3-7), and the other surface of the upper schlieren arm triangular plate is aligned with the end surface of the upper schlieren arm (3-7); the lower schlieren arm (3-8) is arranged on the side surface of the bottom of the rotary support column (3-4) and is positioned on the same side with the camera cross arm (3-1); the rotating arm triangle (3-3) is arranged at the upper right angle of the connection of the rotating support column (3-4) and the lower schlieren arm (3-8); the upper end face of the lower schlieren vertical arm (3-10) is arranged on the lower side face of the lower schlieren arm (3-8), and meanwhile the side face of the lower schlieren vertical arm (3-10) is aligned with the end face of the lower schlieren arm (3-8); the lower schlieren arm triangular plate (3-9) is arranged at a right angle where the lower schlieren arm (3-8) is connected with the lower schlieren vertical arm (3-10), and the high-speed camera (7) is arranged on the camera support (3-5); the schlieren mirror (8) is respectively arranged on the front side surface of the upper schlieren arm triangular plate (3-6) and the lower schlieren vertical arm (3-10); the point power supply (9) is arranged on the positive side of the lower schlieren vertical arm (3-10) and is arranged below the schlieren mirror (8).

2. The dynamic load excited bending gravitational wave annular pool experimental device of claim 1, wherein: the wireless router is arranged at the plane position of the left side surface of the short section of the camera cross arm (3-1) and the rotating arm triangular plate (3-3); the power strip (11) is arranged on the left side surface of the rotary support column (3-4); the adjustable air pump (12) is arranged on the opposite side surface of the rotary support column (3-4); the air nozzle (12-1) is arranged at the end face of the upper schlieren arm (3-7), and the air injection direction is vertically downward.

3. The dynamic load excited bending gravitational wave annular pool experimental device of claim 2, wherein: the rotating platform (5) comprises a rotating platform panel (5-1), a panel base (5-2), a servo motor (5-3), a panel triangle (5-4), a panel support (5-5), a support triangle (5-6), a through hole conductive slip ring (5-7), a bearing (5-8) and a precise planetary reducer (5-9); the top ends of the panel support posts (5-5) are aligned to four corners of the bottom surface of the panel base (5-2); the panel triangular plates (5-4) are arranged at all right angles where the panel support posts (5-5) are connected with the panel base (5-2); the bottom end of the panel support column (5-5) is arranged at the middle position on the pallet; the support triangular plates (5-6) are arranged at the outer right angles of the panel support posts (5-5) and the pallet connection; the output end of the servo motor (5-3) is arranged at the input end of the precise planetary reducer (5-9); the output end of the precise planetary reducer is arranged at the center of the bottom surface of the panel base (5-2); the bearing (5-8) is arranged in a bearing hole in the panel base (5-2); the through hole conductive slip ring (5-7) is arranged in a slip ring hole (5-2-5) in the panel base (5-2) and is fixedly installed by virtue of a clamping groove (5-2-3); the rotating platform panel (5-1) is embedded into the through hole conductive slip ring (5-7), the inner ring of the bearing (5-8) is connected with the output shaft of the precise planetary reducer through a flat key.

4. A dynamic load excited bending gravitational wave annular pool experimental apparatus as claimed in claim 3, wherein: the low-temperature box (13) comprises a box door (13-1), a temperature display screen (13-2), an observation window (13-3), a door handle groove (13-4), an interior scene lamp (13-5) and an evaporator (13-6); the rotary shaft of the box door (13-1) is arranged on the left; the temperature display screen (13-2) is arranged at the top end position in the middle of the box door (13-1); the observation window (13-3) is arranged in the middle of the box door (13-1) at an upper position; the door handle groove (13-4) is arranged at the right side of the door; the interior scene lamp (13-5) is arranged above the interior of the box; the evaporator (13-6) is disposed on the inner front surface.

5. The dynamic load excited bending gravitational wave annular pool experimental device of claim 4, wherein: the rotating platform panel (5-1) comprises a panel (5-1-1), a shaft sleeve (5-1-2), a wire hole (5-1-3), a shaft hole (5-1-4), a key slot (5-1-5) and a countersunk hole (5-1-6); the panel (5-1-1) is round and is integrated with the shaft sleeve (5-1-2); the line hole (5-1-3) is arranged on a line with the center of the panel (5-1-1) as an origin at 45 degrees; the shaft hole (5-1-4) and the key groove (5-1-5) are arranged in the shaft sleeve (5-1-2); the countersunk holes (5-1-6) are arranged on a demarcation line taking the center of the panel (5-1-1) as an origin.

6. The dynamic load excitation bending gravitational wave annular pond test apparatus of claim 5, wherein: the panel base (5-2) comprises a base body (5-2-1), a base plate (5-2-2), a clamping groove (5-2-3), a wire slot (5-2-4), a slip ring hole (5-2-5), a bearing hole (5-2-6) and a rectangular groove (5-2-7); the inner wall of the base body (5-2-1) is provided with a clamping groove (5-2-3) for fixing the via hole conductive slip ring (5-7); the side wall of the base body (5-2-1) is provided with a wire slot (5-2-4), and a stator wire of the through hole conductive slip ring (5-7) passes through the wire slot (5-2-4); the slip ring hole (5-2-5) is arranged above the wire slot (5-2-4); the bearing hole (5-2-6) is arranged below the wire groove (5-2-4); the rectangular groove (5-2-7) is arranged on the bottom surface of the base plate (5-2-2).