CN111762306A - A hybrid drive underwater glider with ring wings - Google Patents

Abstract

The invention discloses a hybrid drive underwater glider with ring wings, which comprises a bow assembly, a midship assembly, a stern assembly and a ring-shaped wing unit, which are connected in sequence; the bow assembly comprises a sensor fixed connecting frame, an emergency load rejection module, a front end cover and a bow dome; the midship assembly comprises a first middle cabin pressure-resistant shell, a second middle cabin pressure-resistant shell, a pitching posture adjusting module, a middle cabin connecting rib ring and an airborne energy module; the stern assembly comprises a rear cabin pressure-resistant shell, a buoyancy adjusting system, a rear end cover, a propulsion motor module, a stern fairing, a tail rudder adjusting module, an integrated antenna and a propeller; the annular wing unit is positioned outside the stern assembly and fixedly connected to the stern assembly; the ring type wing unit comprises a propeller and a ring type wing.

Description

A hybrid drive underwater glider with ring wings

technical field

The invention belongs to the field of underwater gliders, in particular to a hybrid-driven underwater glider carrying a ring-shaped wing.

Background technique

As an important tool for carrying marine physical information sensors, underwater glider platform technology has developed rapidly. Its strong endurance, long range and strong concealment make it very suitable for the measurement of marine biological, chemical, physical and other parameters. One of the most commonly used underwater mobile observation platforms, and the underwater glider propelled solely by propellers has limited endurance. The hybrid-driven underwater glider that integrates the buoyancy adjustment system and the propeller drive emerges as the times require.

At present, in the field of ocean exploration at home and abroad, submersibles with long range and high maneuverability have always been one of the important development directions. At present, the Tethys aircraft proposed internationally has an observation capability of 1,800 kilometers and a propulsion capability at a speed of 2 knots, and will have a wide range of application prospects in the future. At present, small aircraft all have problems such as poor maneuverability and weak anti-current capability. It is of great significance to find a design that can improve the stability and maneuverability of underwater gliders. In recent years, some domestic research institutes have carried out research and development work related to the improvement of the movement capability of small underwater gliders, but the related products have problems such as insufficient stability. For example, the patent number of "A Hybrid Underwater Glider Based on Tandem Wing Drive" published in 2018 is 201811045537.8 Hybrid Drive Underwater Glider. The invention includes a pressure-resistant casing and a signal device, and the casing is provided with a buoyancy adjustment device, a roll attitude adjustment device, a pitch attitude adjustment device, a control device, and the like. Compared with the prior art, the tandem-wing hybrid drive glider described in this invention does not generate additional resistance and has relatively low noise compared with the wings of traditional underwater gliders, but the tandem-wing structure is used. The difference between the glider and the traditional underwater glider is small, and it is still difficult to improve the underwater direct flight propulsion capability and motion stability of the underwater glider.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies in the prior art, and to design a wing structure that can improve the direct flight propulsion capability and motion stability of the hybrid-driven underwater glider. The invention provides a ring-shaped wing assembly structure, which can improve the propeller propulsion efficiency of the underwater glider and improve the current resistance capability of the underwater glider to a certain extent.

The purpose of this invention is to realize through the following technical solutions:

A hybrid drive underwater glider carrying a ring wing, comprising a bow assembly, a midship assembly, a stern assembly and a ring wing unit connected in sequence; the bow assembly includes a sensor fixing connection frame, an emergency load dumping module, front end cover, bow shroud; midship assembly includes first middle cabin pressure casing, second middle cabin pressure casing, pitching attitude adjustment module, middle cabin connecting rib ring, and airborne energy module; The stern assembly includes the pressure housing of the rear cabin, the buoyancy adjustment system, the rear end cover, the propulsion motor module, the stern fairing, the rudder adjustment module, the integrated antenna and the propeller; the annular wing unit is located in the stern assembly Outside, fixed on the stern assembly;

The bow shroud and the front end cover are respectively arranged at the front end and the rear end of the bow assembly, and the sensor fixing connection frame and the emergency load dumping module are installed in the bow assembly;

The front and rear ends of the midship assembly are provided with middle cabin support rib rings, the first middle cabin pressure shell and the second middle cabin pressure shell are connected by the middle cabin connecting rib rings, and the pitch attitude adjustment module The airborne energy module and the airborne energy module are arranged inside the midship assembly, and the airborne energy module provides energy for the underwater glider; the pitch attitude adjustment module is used to adjust the relative position of the gravity center of the underwater glider to realize the pitch attitude adjustment;

The integrated antenna is fixedly connected with the rear end cover; the tail rudder adjustment module is installed on the rear shroud to adjust the horizontal heading of the hybrid-driven underwater glider; the propulsion motor module is installed on the stern part of the guide The buoyancy adjustment system realizes the buoyancy change of the sailing body through the hydraulic system, and realizes the underwater glider. The said propulsion motor module drives the propeller through the motor to provide the underwater glider forward and forward; the underwater glider can realize the fixed-depth cruise of the underwater glider at the working depth through the pitch attitude adjustment module and the buoyancy adjustment system The annular wing unit is fixed on the stern shroud, and the annular wing unit includes a propeller and an annular wing.

Further, after the propulsion motor module is turned off, the underwater glider can perform the underwater glider-like profile navigation operation.

Further, the hybrid-driven underwater glider is tensioned inside the internal tension rod to ensure stable and sealed connection of the bow assembly, the midship assembly, and the stern assembly.

Further, the tail rudder adjustment module is composed of a tail rudder, a connecting shaft, a steering gear, a steering gear fixing frame and a compensator; the tail rudder adjustment module realizes underwater by adjusting the rotation angle of the two vertical rudder surfaces. The heading control of the glider; the integrated antenna is used for the communication between the underwater glider and the ground, and the ring-shaped wing unit is fixed on the rear end cover of the stern assembly by bolts; and the head and tail rudder of the integrated antenna are respectively connected The bottom of the adjustment module is glued and the annular wing is on the outside of the propeller.

Compared with the prior art, the beneficial effects brought by the technical solution of the present invention are:

The traditional underwater glider flat wing design is cancelled, and the present invention adopts a unique annular wing design. Through the optimization of fluid mechanics simulation, the annular wing and the propeller are organically combined, and the working ability of the propulsion system is improved on the basis of taking into account the movement stability of the underwater glider. The upstream surface of the annular wing adopts a deflector with a certain radian to reduce the uneven local force of the wing. The installation position of the annular wing is different from that of the traditional flat wing, and it is close to the tail of the underwater glider, which is convenient for diversion to the propeller. The positional layout of the annular wing and the propeller follows the design principles of the ducted propeller to ensure the relative hydrodynamic characteristics and improve the propulsion efficiency of the propeller. The larger wing area (compared with the flat-shaped wing of the underwater glider) and the symmetrical layout structure can improve the motion stability of the aircraft to a certain extent, and effectively improve the anti-interference ability of the underwater glider, and reduce the impact of external factors such as ocean currents on the ocean. Detecting the effects of equipment observations.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the hybrid-driven underwater glider of the present invention.

FIG. 2 is a 1/4 sectional structural schematic diagram of the bow assembly of the present invention.

FIG. 3 is a schematic diagram of a 1/4 cross-sectional structure of the midship assembly of the present invention.

Fig. 4 is a 1/4 cross-sectional structural schematic diagram of the stern assembly of the present invention.

FIG. 5 is a schematic diagram of the structure of the annular wing of the present invention.

Reference numerals: 1- Bow assembly, 2- Midship assembly, 3- Stern assembly, 4- Ring wing unit, 5- Bow shroud, 6- Emergency dump module, 7- Sensor fixing connection frame, 8- front cover, 9- middle cabin pressure shell, 10- middle cabin connecting rib ring, 11- middle cabin pressure shell, 12- airborne energy module; 13- pitch attitude adjustment module; 14- middle tank support rib ring, 15- rear tank pressure shell, 16- buoyancy adjustment system, 17- rear end cover, 18- propulsion motor module, 19- stern fairing, 20- integrated antenna, 21- Propeller, 22-ring wing, 23-rudder adjustment module.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

As shown in FIGS. 1 to 5 , the present invention provides a hybrid drive underwater glider carrying a ring wing, comprising a bow assembly 1, a midship assembly 2, a stern assembly 3 and a ring wing that are connected in sequence Unit 4; bow assembly 1 includes sensor fixing connection frame 7, emergency load dump module 6, front end cover 8, bow shroud 5; midship assembly 2 includes middle cabin pressure housing 9, middle cabin pressure resistance Shell 11, pitch attitude adjustment module 13, middle cabin connecting rib ring 10, airborne energy module 12; stern assembly 3 includes rear cabin pressure shell 15, buoyancy adjustment system 16, rear end cover 17, propulsion motor module 18. The stern fairing 19, the rudder adjustment module 23, the integrated antenna 20 and the propeller 21; the annular wing unit 4 is located outside the stern assembly 3 and is fixedly connected to the stern assembly 3; including the propeller 21 and Annular wing 22 . The upper part of the integrated antenna 20 and the lower part of the rudder adjustment module 23 are connected to the annular wing 22, so that the annular wing 22 and the propeller 21 form a similar ducted propeller structure, and the flow field characteristics around the propeller are improved, thereby improving the propeller propulsion efficiency.

The bow shroud 5 of the bow assembly is fixedly connected with the front end cover 8 by bolts, and the connection method is fixed connection by bolts evenly distributed in the circumferential direction; Carrying; wherein each sensor unit is fixed on the sensor fixing connection frame by bolts, so that the underwater glider can perform underwater communication, detection, target positioning, tracking, etc. during underwater navigation.

The airborne energy module in the midship assembly provides energy for the underwater glider; the pitch attitude adjustment module uses the motor to drive the battery pack to move back and forth on the guide rail to realize the pitch attitude adjustment of the underwater glider. The midship assembly 2 tightens the pressure-resistant shell 9 of the middle cabin through the middle tension rod;

The integrated antenna of the stern assembly is fixedly connected to the rear end cover by bolts; the stern shroud is equipped with a rudder adjustment module, which is used to adjust the heading of the hybrid-driven underwater glider; the propulsion motor module is installed in the stern assembly The stern of the hybrid drive underwater glider is used for direct underwater navigation; the buoyancy adjustment system can adjust the buoyancy of the underwater glider, realize the floating and diving of the underwater glider, and realize the underwater buoyancy adjustment of the underwater glider. ; Propulsion motor module, the propeller is driven by the motor, and the underwater glider can sail directly underwater when it is turned on; when the propeller is turned off, the underwater glider can perform profile sailing operations similar to the underwater glider.

In this embodiment, the ring-shaped wing is a ring-shaped wing obtained by CFD calculation and simulation. This ring-shaped structure is different from the traditional wing, and the design shape parameters need to consider the effects of integrated antennas, propellers, and rudder adjustment modules. It is fixedly connected with the stern shroud by bolts, and is glued with the integrated antenna head and the bottom of the rudder adjustment module to ensure the overall structural stability. Its shape is similar to a stubby hollow cylinder, and its upper and lower arcs generate lift and provide directional stability during the gliding process of the hybrid-drive glider. The annular wing is located outside the propeller, and its inner and outer arc design structure can improve the flow field around the propeller and improve the propeller performance to a certain extent. The combined structure of the annular wing and the rear propeller designed in this design is similar to the structure of the traditional ducted propeller, which can accelerate the water flow at the propeller disc surface and make the propeller work in a larger speed field, thereby improving the efficiency of the propeller.

The present invention is not limited to the embodiments described above. The above description of the specific embodiments is intended to describe and illustrate the technical solutions of the present invention, and the above-mentioned specific embodiments are only illustrative and not restrictive. Without departing from the scope of the present invention and the scope of protection of the claims, those of ordinary skill in the art can also make specific transformations in many forms under the inspiration of the present invention, and these all belong within the protection scope of the present invention.

Claims (4)

1. A hybrid-driven underwater glider with ring wings is characterized by comprising a bow assembly, a midship assembly, a stern assembly and a ring-shaped wing unit which are sequentially connected; the bow assembly comprises a sensor fixed connecting frame, an emergency load rejection module, a front end cover and a bow dome; the midship assembly comprises a first middle cabin pressure-resistant shell, a second middle cabin pressure-resistant shell, a pitching posture adjusting module, a middle cabin connecting rib ring and an airborne energy module; the stern assembly comprises a rear cabin pressure-resistant shell, a buoyancy adjusting system, a rear end cover, a propulsion motor module, a stern fairing, a tail rudder adjusting module, an integrated antenna and a propeller; the annular wing unit is positioned outside the stern assembly and fixedly connected to the stern assembly;

the bow part air guide sleeve and the front end cover are respectively arranged at the front end and the tail end of the bow part assembly, and the sensor fixed connecting frame and the emergency load rejection module are arranged in the bow part assembly;

the front end and the rear end of the midship assembly are respectively provided with a middle cabin supporting rib ring, the first middle cabin pressure-resistant shell and the second middle cabin pressure-resistant shell are connected through a middle cabin connecting rib ring, the pitch attitude adjusting module and the airborne energy module are arranged in the midship assembly, and the airborne energy module provides energy for the underwater glider; the pitching attitude adjusting module is used for adjusting the relative position of the gravity center and the floating center of the underwater glider to realize pitching attitude adjustment;

the integrated antenna is fixedly connected with the rear end cover; the rear air guide sleeve is provided with the tail vane adjusting module which is used for adjusting the horizontal course of the hybrid driving underwater glider; the propulsion motor module is arranged in the stern part flow guide cover, is fixedly connected with the stern part flow guide cover through a fixed connecting frame and is used for underwater straight navigation work of the hybrid-driven underwater glider; the buoyancy regulating system realizes the buoyancy change of the navigation body through a hydraulic system, and realizes the floating and submerging of the underwater glider; the propulsion motor module drives a propeller through a motor to provide forward advancing for the underwater glider; the underwater glider can realize the constant-depth cruising of the underwater glider under the working depth through the pitching attitude adjusting module and the buoyancy adjusting system; the annular wing unit is fixedly connected to the stern part air guide sleeve and comprises a propeller and an annular wing.

2. The hybrid-driven underwater glider with ring wings of claim 1, wherein the underwater glider is capable of performing a profile-like sailing operation of the underwater glider when the propulsion motor module is turned off.

3. The hybrid-drive underwater glider with ring wings of claim 1, wherein the hybrid-drive underwater glider is tensioned by means of internal tension rods, so that the stable and sealed connection among the bow assembly, the midship assembly and the stern assembly is ensured.

4. The hybrid driving underwater glider with the ring wings as claimed in claim 1, wherein the tail rudder adjusting module comprises a tail rudder, a connecting shaft, a steering engine fixing frame and a compensator; the tail vane adjusting module realizes course control of the underwater glider by adjusting the rotation angles of two vertical control surfaces; the integrated antenna is used for communication between the underwater glider and the ground, and the annular wing unit is fixed on a rear end cover of the stern assembly through a bolt; and the annular wing is respectively glued with the head of the integrated antenna and the bottom of the tail vane adjusting module, and is positioned outside the propeller.

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