CN106989902A - A kind of ship model maneuverability experimental system - Google Patents

Abstract

A kind of ship model maneuverability experiment system, comprising: a support frame; a pod, the pod is located below the first plate, and its upper rear side has a flap that can be rotated by a vertical shaft, and the flap has a vertical The transmission rod has a first transmission gear on the transmission rod; the first rotating shaft, the second rotating shaft and the third rotating shaft are rotatable and vertically arranged, and the first rotating shaft extends into the pod and is connected with the propeller shaft; Connected with the pod, the third rotating shaft has a second transmission gear meshed with the first transmission gear; load cell, the load cell is sleeved outside the third rotating shaft, the lower half of the load cell is connected to the first The plate is fixed, the upper half is fixed with the second plate, and its hole diameter is larger than the outer diameter of the third rotating shaft. The present invention realizes flap angle control at any angle and a full-turn propulsion device for force measurement, reduces the volume of the right-angle transmission processing body, and realizes integration of the whole set of devices.

Description

A Ship Model Maneuverability Experimental System

technical field

The invention relates to the technical field of ship maneuverability experiments, in particular to a ship model maneuverability experiment system.

Background technique

In order to understand the propulsion efficiency of the ship when it is sailing, the maneuverability of the ship is usually studied by installing the pod propulsion experimental device on the ship model.

In the ship model maneuverability test system of the prior art, the pod propulsion test device can only rotate within the rotation range of plus or minus 45 degrees, there is no flap rudder, right-angle transmission, and the processing body is large in size, which is difficult for the pod package. Processing is limited and there is no force sensor for real-time adjustments.

Contents of the invention

Based on this, aiming at the above technical problems, a ship model maneuverability test system is provided.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

A ship model manoeuvrability test system is characterized in that it includes an on-shore computer, a pod propulsion test device arranged on the ship model, a signal transmitter, an AD acquisition card, and a ship-borne computer;

The pod propulsion experiment device includes a support frame, a pod, a rotatable and vertically arranged first rotating shaft, a second rotating shaft and a third rotating shaft, and a load cell;

The support frame includes a first plate, a second plate, a third plate and a fourth plate arranged at intervals from bottom to top, and between the second plate and the third plate and between the third plate and the fourth plate Both have support columns at the four corners;

The pod is located below the first plate, and the upper part of the rear side has a flap that can be rotated by a vertical shaft, and the flap has a vertical transmission rod, and the transmission rod has a first transmission gear;

The upper end of the first rotating shaft is connected to the first driving motor through a coupling, the upper end of the second rotating shaft is connected to the second driving motor through a transmission gear, and the upper end of the third rotating shaft is connected to the third driving motor through a transmission gear. The driving motor is connected by transmission, the third rotating shaft passes through the first plate and the second plate, and the apertures of the first plate and the second plate are larger than the outer diameter of the third rotating shaft, and the first driving motor fixed on the upper surface of the fourth plate, the second driving motor is fixed on the upper surface of the third plate, the third driving motor is fixed on the upper surface of the second plate, and the first rotating shaft extending into the nacelle and connected to the propeller shaft in transmission, the second rotating shaft is connected to the nacelle, and the third rotating shaft has a second transmission gear meshed with the first transmission gear;

The load cell is sleeved outside the third rotating shaft, the lower half of the load cell is fixed to the first plate, the upper half is fixed to the second plate, and its aperture is larger than the third rotating shaft the outer diameter;

The load cell, the signal transmitter, the AD acquisition card and the on-board computer are electrically connected in sequence, and the on-board computer is connected in communication with the on-shore computer.

The first rotating shaft, the second rotating shaft and the third rotating shaft are concentrically arranged from inside to outside.

The invention can drive the pod to rotate 360 degrees through the second rotating shaft. If yaw occurs during the propulsion process, the flap can be driven through the third rotating shaft to realize navigation correction, which reduces power consumption, and can realize any angle by adding a force sensor. The full-turn propulsion device for flap angle control and force measurement reduces the volume of the right-angle transmission processing body, and the whole set of devices realizes integration.

Description of drawings

The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment:

Fig. 1 is the structural representation of pod propulsion experiment device of the present invention;

Fig. 2 is a block diagram of the connection principle of the electrical equipment of the system of the present invention.

detailed description

As shown in Fig. 1 and Fig. 2, a kind of ship model manoeuvrability experiment system includes shore computer 10 and pod propulsion experiment device located on the ship model, signal transmitter 21, AD acquisition card 22, shipboard computer 23 .

As shown in FIG. 1 , the pod propulsion experiment device includes a support frame 160 , a pod 110 , a first rotating shaft 120 , a second rotating shaft 130 , a third rotating shaft 140 and a load cell 150 .

The support frame 160 includes a first plate 161, a second plate 162, a third plate 163 and a fourth plate 164 arranged at intervals from bottom to top, between the second plate 162 and the third plate 163 and between the third plate 163 and the third plate 163. Each of the four boards 164 has support columns 165 at four corners.

The nacelle 110 is located below the first plate 161 and has a gear assembly connected to one end of the propeller shaft 113 inside, and the other end of the propeller shaft 113 extends to the outside of the front side of the nacelle 110 .

The rear upper part of the pod 110 has a flap 111 that rotates through a vertical shaft, and the lower part has a fixed wing 112. The flap 111 has a vertical transmission rod 111a, and the transmission rod 111a has a first transmission gear 111b.

Specifically, the flap 111 is hinged to the pod 110 . By driving the transmission rod 111a, the swing of the flap 111 can be realized.

The first rotating shaft 120, the second rotating shaft 130, and the third rotating shaft 140 are rotatable and vertically arranged. The upper end of the first rotating shaft 120 is connected with the first driving motor 121 through a coupling 122, and the upper end of the second rotating shaft 130 is connected with the transmission gear through the transmission gear. The second driving motor 131 is in transmission connection, and the upper end of the third rotating shaft 140 is in transmission connection with the third driving motor 142 through a transmission gear.

Specifically, the upper end of the first rotating shaft 120 is connected with the coupling 122 between the third plate 163 and the fourth plate 164, and the lower ends of the first rotating shaft 120, the second rotating shaft 130 and the third rotating shaft 140 all pass through the first plate 161 and the second plate 162 , the hole diameters of the first plate 161 and the second plate 162 are larger than the outer diameter of the third rotating shaft 140 .

Wherein, the first driving motor 121 is fixed on the upper surface of the fourth board 164 , the second driving motor 131 is fixed on the upper surface of the third board 163 , and the third driving motor 142 is fixed on the upper surface of the second board 162 .

The first rotating shaft 120 extends into the nacelle 110 and is connected to the propeller shaft through a gear assembly. The second rotating shaft 130 is connected to the nacelle 110. The third rotating shaft 140 has a second transmission gear 141 meshing with the first transmission gear 111b.

Specifically, the first rotating shaft 120, the second rotating shaft 130, and the third rotating shaft 140 are arranged concentrically from the inside to the outside, that is, the first rotating shaft 120 is located in the second rotating shaft 130, and the second rotating shaft 130 is located in the third rotating shaft 140. They can rotate independently, wherein the second rotating shaft 130 and the third rotating shaft 140 are respectively connected to the second driving motor 131 and the third driving motor 142 through transmission gears, which reduces the volume of the right-angle transmission processing body.

The load cell 150 is sleeved outside the third rotating shaft 140. The lower half of the load cell 150 is fixed to the first plate 161, and the upper half is fixed to the second plate 162. The load cell 150 has a central hole, and the diameter of the central hole is larger than the outer diameter of the third rotating shaft 140 , so that the third rotating shaft 140 passes through the load cell 150 . During the experiment, the first plate 161 in the pod propulsion test device is fixed on the ship model, and when the ship model sails, the load cell 150 can detect the three-component force (x-axis component force) on the pod propulsion test device. Fx, the y-axis component force Fy, the z-axis torque Mz, the x-axis is the forward direction, and the y-axis is laterally perpendicular to the x-axis), Fx, Fy and Mz are used to study the maneuverability of the ship.

As shown in FIG. 2 , the load cell 150 , the signal transmitter 21 , the AD acquisition card 22 and the onboard computer 23 are electrically connected in sequence, and the onboard computer 23 is connected to the shore computer 10 in communication. In this way, the data measured by the measurement sensor 150 can be directly transmitted to the shore computer in real time for calculation and analysis.

In the pod propulsion experiment device of the present invention, the pod can be driven to rotate 360 degrees through the second rotating shaft. If yaw occurs during the propulsion process, the flap can be driven through the third rotating shaft to realize navigation correction, which reduces power consumption. The fully rotary propulsion device for flap angle control and force measurement at any angle is realized, the volume of the right-angle transmission processing body is reduced, and the whole set of devices is integrated.

However, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, rather than as a limitation to the present invention, as long as within the spirit of the present invention, the implementation Changes and modifications of the examples all fall within the scope of the claims of the present invention.

Claims (2)

1. A ship model manoeuvrability test system is characterized in that it comprises an on-shore computer and a pod propulsion experiment device, a signal transmitter, an AD acquisition card, and a shipboard computer located on the ship model; The pod propulsion experiment device includes a support frame, a pod, a rotatable and vertically arranged first rotating shaft, a second rotating shaft and a third rotating shaft, and a load cell; The support frame includes a first plate, a second plate, a third plate and a fourth plate arranged at intervals from bottom to top, and between the second plate and the third plate and between the third plate and the fourth plate Both have support columns at the four corners; The pod is located below the first plate, and the upper part of the rear side has a flap that can be rotated by a vertical shaft, and the flap has a vertical transmission rod, and the transmission rod has a first transmission gear; The upper end of the first rotating shaft is connected to the first driving motor through a coupling, the upper end of the second rotating shaft is connected to the second driving motor through a transmission gear, and the upper end of the third rotating shaft is connected to the third driving motor through a transmission gear. The driving motor is connected by transmission, the third rotating shaft passes through the first plate and the second plate, and the apertures of the first plate and the second plate are larger than the outer diameter of the third rotating shaft, and the first driving motor fixed on the upper surface of the fourth plate, the second driving motor is fixed on the upper surface of the third plate, the third driving motor is fixed on the upper surface of the second plate, and the first rotating shaft extending into the nacelle and connected to the propeller shaft in transmission, the second rotating shaft is connected to the nacelle, and the third rotating shaft has a second transmission gear meshed with the first transmission gear; The load cell is sleeved outside the third rotating shaft, the lower half of the load cell is fixed to the first plate, the upper half is fixed to the second plate, and its aperture is larger than the third rotating shaft the outer diameter; The load cell, the signal transmitter, the AD acquisition card and the on-board computer are electrically connected in sequence, and the on-board computer is connected in communication with the on-shore computer. 2 . The ship model maneuverability experiment system according to claim 1 , wherein the first, second and third rotating shafts are concentrically arranged from inside to outside. 3 .