A rotating drum experimental test device capable of boosting and reducing shaking

Abstract

The present invention provides a rotary drum experimental test device capable of boosting and stabilizing rolling, which comprises a mounting plate, a rotary drum position adjustment driving mechanism, a rotary drum lift driving mechanism, a gear transmission box, a force sensor, a rotary drum and a ship model; a force sensor is fixed to the lower part of the mounting plate; the lower part of the force sensor is fixedly connected to the deck of the ship model; the rotary drum position adjustment mechanism is mounted on the upper part of the mounting plate; the power output end of the rotary drum position adjustment mechanism is connected to one of the power input ends of the gear transmission box; the power output end of the rotary drum lift driving mechanism is connected to the other power input end of the gear transmission box; the rotary drum is mounted on the power output end of the gear transmission box. The present invention has a simple and reasonable structural design, is easy to operate and use, and is easy to process and install, making it suitable for experimental testing of rotary drum sails in wind tunnels, and has broad application prospects.

Description

Technical Field

[0001] The invention relates to the technical field of navigation and marine engineering, and in particular to a rotating drum experimental testing device capable of boosting and stabilizing rolling. Background Art

[0002] In the field of navigation and marine engineering, wind-assisted propulsion technology has been widely studied and applied in ship propulsion systems. Traditional wind-assisted propulsion rotors mainly work based on the Magnus effect, that is, when the wind blows laterally along the axis of the rotor, the rotation of the rotor will generate a lift perpendicular to the flow direction and the axis of rotation, thereby propelling the ship forward. Although this design is simple, there are some limitations in practical applications, especially in a changeable marine environment, where ships not only need forward power, but also need to reduce the shaking caused by waves to ensure navigation stability and comfort. The wind-assisted propulsion system in the prior art usually only focuses on improving the propulsion efficiency of the ship, and has limited contribution to the reduction of rolling. This is because traditional rotors can only generate thrust in the presence of transverse winds, and their design usually does not take into account the need for reduction of rolling in complex sea conditions. Therefore, ships still face great challenges when encountering bad weather, which affects the safety and comfort of navigation, and at the same time limits the application field of wind-assisted propulsion technology. Summary of the invention

[0003] In view of the technical problems existing in the above-mentioned background technology, the present invention proposes a rotor experimental test device that can assist thrust and reduce roll. The device is easy to manufacture, convenient to use and operate, and can accurately measure the aerodynamic performance of the rotor. It aims to solve the problem that traditional wind-assisted thrust rotors can only generate thrust in crosswind but cannot play an effective role in no wind or headwind conditions.

[0004] In order to solve the above technical problems, the present invention provides a rotating drum experimental test device capable of boosting and stabilizing rolling, which comprises a mounting plate, a rotating drum position adjustment drive mechanism, a rotating drum lift drive mechanism, a gear transmission box, a force sensor, a rotating drum and a ship model; the mounting plate is arranged horizontally and the force sensor is fixedly mounted on the lower part; the lower part of the force sensor is fixedly connected to the deck of the ship model; the rotating drum position adjustment mechanism is matched and mounted on the upper part of the mounting plate; the gear transmission box is located on one side of the rotating drum position adjustment mechanism; the power output end of the rotating drum position adjustment mechanism is connected to the gear transmission box. One of the power input ends of the gear box is matched and connected; the drum lift driving mechanism is located on one side of the drum position adjustment mechanism, and its power output end is matched and connected with the other power input end of the gear transmission box; the drum is matched and installed on the power output end of the gear transmission box; the gear transmission box realizes phase angle adjustment under the drive of the drum position adjustment mechanism, and then realizes the position adjustment of the drum; the drum, driven by the drum lift driving mechanism and the gear transmission box, generates lift perpendicular to the flow direction in the wind tunnel flow field based on the Magnus effect, so as to realize the thrust and roll reduction of the ship model.

[0005] The rotary drum experimental test device capable of boosting and reducing roll, wherein: the rotary drum position adjustment mechanism comprises a first servomotor; the first servomotor is matched and installed horizontally on the upper part of the mounting plate, and a first planetary reducer is matched and installed on its power output end; the rotary drum lift driving mechanism comprises a second servomotor; the second servomotor is matched and located on one side of the gear transmission box, and a second planetary reducer is matched and installed on its power output end; the first planetary reducer and the second planetary reducer are respectively matched and connected with two power input ends of the gear transmission box through their respective drive shafts; the gear transmission box realizes phase angle adjustment under the drive of the first servomotor and the first planetary reducer, thereby realizing position adjustment of the rotary drum; the rotary drum generates lift perpendicular to the flow direction based on the Magnus effect in the wind tunnel flow field under the joint drive of the second servomotor, the second planetary reducer and the gear transmission box, so as to realize boosting and reducing roll of the ship model.

[0006] The rotating drum experimental test device capable of boosting and stabilizing shaking, wherein: the driving shaft of the first planetary reducer is matched and connected with one of the power input ends of the gear transmission box through a keyed installation method.

[0007] The rotating drum experimental testing device capable of boosting and stabilizing shaking, wherein: the power output end of the gear transmission box is matched and connected with one end of the rotating drum by a keyed installation method.

[0008] The rotating drum experimental testing device capable of boosting and stabilizing rolling, wherein: the rotating drum is a retractable rotating drum made of high-strength and lightweight material.

[0009] The rotating drum experimental test device capable of boosting and stabilizing the rolling, wherein: the rotating drum experimental test device also includes an intelligent control system; the intelligent control system includes a central processing unit, a data acquisition module, a drive module, an operation terminal and a power management module; the central processing unit is responsible for executing the control algorithm, processing the sensor data and sending the control instruction, and is connected with a communication interface; the signal input end of the data acquisition module is electrically connected to the force sensor, and the signal output end is electrically connected to the central processing unit; the data acquisition module is responsible for collecting the signal of the force sensor and performing analog-to-digital conversion for processing by the central processing unit; the signal output end of the drive module is electrically connected to the second servo motor, and the signal input end is matched and connected to the communication interface and is electrically connected to the central processing unit through the communication interface; the drive module is used to receive instructions from the central processing unit and drive the second servo motor to move to adjust the rotation speed of the rotating drum; the operation terminal is electrically connected to the central processing unit; the power management module is electrically connected to the force sensor, the central processing unit, the data acquisition module, the drive module, the communication interface, the operation terminal and the second servo motor respectively.

[0010] The rotating drum experimental test device capable of boosting and stabilizing shaking, wherein: the communication interface adopts any one of RS-232, USB and Ethernet ports, which is used for data exchange between the central processing unit and the driving module.

[0011] The rotating drum experimental testing device capable of boosting and stabilizing shaking, wherein: the operating terminal includes a display screen and an operating interface, which allows the operator to view real-time data, modify parameters and manually operate.

[0012] By adopting the above technical solution, the present invention has the following beneficial effects:

[0013] The rotary drum experimental test device for boosting and stabilizing the roll of the present invention has a simple and reasonable structural design and is easy to process and install, making it suitable for experimental testing of rotary drum sails in wind tunnels. The present invention can not only be used for research in the fields of ship design and marine engineering, but also provide important technical support and innovation platform for the development of related technologies, and can be especially used in wind tunnels to conduct experimental testing of rotary drum sails.

[0014] The present invention is different from the traditional wind-assisted propulsion rotor. It can not only generate thrust perpendicular to the flow direction based on the Magnus effect in the wind tunnel flow field, but also realize the anti-roll function through a specific design and control system. By integrating core components such as the drum, servo motor, and intelligent control system, the present invention can adaptively adjust the shape and operating parameters under various working conditions to achieve the best propulsion and anti-roll effect, which improves the performance of the drum in the wind tunnel test and provides a new technical support for ship design and marine engineering applications in real environments. It has important practical value and broad application prospects.

[0015] Compared with the existing technology or structure, the rotating drum experimental test device capable of boosting and stabilizing the rolling of the present invention also has the following characteristics, advantages or strengths:

[0016] (1) Highly integrated design: By integrating core components such as the drum, servo motor, and intelligent control system, the device is highly integrated, making the installation and commissioning of the device in the wind tunnel more convenient, while also reducing the failure rate and maintenance cost of the device;

[0017] (2) Strong adaptive capability: The intelligent control system monitors and adjusts the operating status of the drum in real time, enabling the device to adaptively adjust its shape and operating parameters under different wind tunnel environments and working conditions to achieve the best thrust-boosting and roll-reduction effects;

[0018] (3) Accurate measurement and control: The use of high-precision force sensors and intelligent control systems enables accurate measurement and control of the rotor's aerodynamic performance, providing more accurate data support for ship design and marine engineering research;

[0019] (4) Good environmental adaptability: Since the drum is made of high-strength lightweight material and is retractable, the device has good environmental adaptability and can work stably under different environmental conditions such as temperature and humidity;

[0020] (5) Low energy consumption and environmental protection: The present invention adopts electric drive, which has lower energy consumption and less environmental pollution than traditional hydraulic drive or pneumatic drive;

[0021] (6) Strong scalability: The present invention can be modularly expanded according to actual needs to meet the experimental test requirements of different scales and functions;

[0022] (7) Improve experimental efficiency: Automatic control is achieved through intelligent control systems, which reduces the tediousness of manual operations and improves experimental efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the rotating drum experimental test device capable of boosting and stabilizing the present invention;

[0025] Figure 2 It is a front view of the rotating drum experimental test device capable of boosting and stabilizing the present invention;

[0026] Figure 3 It is a side view of the rotating drum experimental test device capable of boosting and stabilizing the present invention;

[0027] Figure 4 A top view of the rotary drum experimental test device capable of boosting and stabilizing the present invention;

[0028] Figure 5 It is a layout diagram of the rotary drum experimental test device capable of boosting and stabilizing the present invention;

[0029] Figure 6 Another layout diagram of the rotary drum experimental test device capable of boosting and stabilizing the present invention;

[0030] Figure 7 The present invention is a structural connection principle diagram of the intelligent control system of the rotating drum experimental test device capable of boosting and stabilizing the shaking. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention is further explained below in conjunction with specific implementation modes.

[0033] like Figure 1-4 As shown, the rotating drum experimental test device for boosting and stabilizing the roll provided in this embodiment includes a mounting plate 1, a first servo motor 2, a first planetary reducer 3, a gear transmission box 4, a second servo motor 5, a second planetary reducer 6, a force sensor 7, a rotating drum 8, a ship model 9 and an intelligent control system.

[0034] The mounting plate 1 is arranged horizontally; the first servo motor 2 is matched and mounted horizontally on the upper part of the mounting plate 1; through the control of the first servo motor 2, the form of the rotary drum experimental testing device of the present invention can be changed to adapt to different experimental requirements.

[0035] The first planetary reducer 3 is matched and installed on the power output end of the first servo motor 2; wherein, the first reducer driving shaft 31 of the first planetary reducer 3 is matched and connected with the power input end of one direction of the gear transmission box 4 through a key installation method.

[0036] The transmission box power output shaft 41 of the gear transmission box 4 is matched and connected with one end of the rotating drum 8 by a key installation method. By changing the phase angle of the gear transmission box 4, the position of the rotating drum 8 can be changed.

[0037] The second servo motor 5 is matched and located at one side of the gear transmission box 4, and a second planetary reducer 6 is matched and installed at a power output end thereof.

[0038] The second reducer drive shaft 61 of the second planetary reducer 6 is matched and connected with the power input end of the gear transmission box 4 in another direction, providing a power source for the gear transmission box 4 and realizing the rotational movement of the drum 8.

[0039] The force sensor 7 is matched and fixedly installed on the lower part of the mounting plate 1. It is a high-precision, high-sensitivity force sensor that can monitor the lift, drag and torque changes of the drum 8 in real time, and transmit the data to the intelligent control system in real time to analyze the aerodynamic performance of the device; wherein, the lower part of the force sensor 7 is also fixedly connected to the deck of the ship model 9.

[0040] The rotating drum 8 is driven by the second servo motor 5 through the second planetary reducer 6 and the gear transmission box 4. In the wind tunnel flow field, a lift perpendicular to the flow direction is generated based on the Magnus effect, so as to achieve thrust and roll reduction for the ship model. The rotating drum 8 is a retractable rotating drum made of high-strength and lightweight material, and is provided with a plurality of support points for length adjustment inside. The effective length of the rotating drum 8 can be changed by adjusting the positions of the support points. The length of the rotating drum 8 is adjusted according to the experimental requirements to adapt to ship models 9 of different sizes, so as to simulate different thrust and roll reduction conditions, or adapt to the space limitations in the wind tunnel experiment.

[0041] like Figure 7 As shown, the intelligent control system includes a central processing unit 101 , a data acquisition module 102 , a drive module 103 , a communication interface 104 , an operation terminal 105 and a power management module 106 .

[0042] The central processing unit 101 serves as the brain of the system and is responsible for executing control algorithms, processing sensor data and sending control instructions; wherein the central processing unit 101 is connected to a communication interface 104 .

[0043] The data acquisition module 102 is responsible for collecting the signal of the force sensor 7 and performing analog-to-digital conversion for processing by the central processing unit 101 . Its signal input end is electrically connected to the force sensor 7 , and its signal output end is electrically connected to the central processing unit 101 .

[0044] The driving module 103 is used to receive instructions from the central processing unit 101 and drive the second servo motor 5 to adjust the rotation speed of the drum 8. Its signal output end is electrically connected to the second servo motor 5, and its signal input end is electrically connected to the communication interface 104 and electrically connected to the central processing unit 101 through the communication interface 104.

[0045] The communication interface 104 is a RS-232, USB or Ethernet port, which is used for data exchange between the central processing unit 101 and the driving module 103 .

[0046] The operation terminal 105 is electrically connected to the central processing unit 101; wherein, the operation terminal 105 includes a display screen and an operation interface, allowing an operator to view real-time data, modify parameters and manually operate.

[0047] The power management module 106 provides a stable power supply for each electronic component in the system, and is electrically connected to the force sensor 7, the central processing unit 101, the data acquisition module 102, the drive module 103, the communication interface 104, the operation terminal 105 and the second servo motor 5 respectively.

[0048] Reference Figure 5 , four sets of rotating drum experimental test devices are installed at both ends of the deck of the ship model 9, and the rotating drums 8 of the four sets of rotating drum experimental test devices are kept in a vertical state. The ship model 9 is placed horizontally in the wind tunnel test section; after the force sensor 7 is balanced and reset, the wind tunnel is turned on, and when the wind speed is stable, the intelligent control system is started, and the rotation speed of the rotating drum 8 is intelligently controlled according to the feedback of the force sensor 7 to increase the lift (thrust). The surface and wake flow characteristics of the rotating drum 8 and the ship model 9 are observed by the tracer method, and the experimental data are collected. In addition, the rotating drum 8 of different forms (including changing the length, cross-sectional shape or surface roughness, etc.) can be replaced according to the experimental requirements to conduct a series of experimental comparative studies.

[0049] Reference Figure 6By starting the first servo motor 2, the drum 8 of the four drum test devices can be changed to a horizontal state; the ship model 9 is arranged longitudinally in the test section of the wind tunnel. When the force sensor 7 is balanced and reset, the wind tunnel is turned on. After the wind speed is stable, the intelligent control system is started to intelligently control the rotation speed of the drum 8 according to the feedback of the force sensor 7, so as to increase the lift (restoring torque) and reduce the resistance. The surface and wake flow characteristics of the drum 8 and the ship model 9 can be observed by the tracer method, and the experimental data can be collected. In addition, by starting the first servo motor 2, the drum 8 of the four drum test devices can be changed to different angles (between horizontal and vertical) to investigate the aerodynamic performance of the drum at different attack angles.

[0050] The present invention has a simple and reasonable structural design, is easy to manufacture, and is convenient to use and operate. The device can accurately measure the aerodynamic performance of the rotor and is intended to solve the problem that traditional wind-assisted rotors can only generate thrust in crosswinds but cannot play an effective role in no wind or headwind conditions.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotating drum test device capable of boosting and stabilizing the rolling motion, characterized in that: The rotary drum experimental test device comprises a mounting plate (1), a rotary drum position adjustment mechanism, a rotary drum lift drive mechanism, a gear transmission box (4), a force sensor (7), a rotary drum (8) and a ship model (9); The mounting plate (1) is arranged horizontally and the force sensor (7) is fixedly mounted on its lower portion; the lower portion of the force sensor (7) is fixedly connected to the deck of the ship model (9); The rotating drum position adjustment mechanism is matched and mounted on the upper part of the mounting plate (1); the gear transmission box (4) is located on one side of the rotating drum position adjustment mechanism; the power output end of the rotating drum position adjustment mechanism is matched and connected to one of the power input ends of the gear transmission box (4); The drum lift driving mechanism is located on one side of the drum position adjustment mechanism, and its power output end is matched and connected with the other power input end of the gear transmission box (4); The rotating drum (8) is matched and mounted on the power output end of the gear transmission box (4); The gear transmission box (4) is driven by the drum position adjustment mechanism to adjust the phase angle, thereby adjusting the position of the drum (8); the drum (8) is driven by the drum lift drive mechanism and the gear transmission box (4) to generate a lift perpendicular to the flow direction in the wind tunnel flow field based on the Magnus effect, so as to achieve thrust assistance and roll reduction for the ship model (9); The drum position adjustment mechanism comprises a first servo motor (2); the first servo motor (2) is matched and horizontally mounted on the upper part of the mounting plate (1), and a first planetary reducer (3) is matched and mounted on a power output end thereof; The drum lift driving mechanism comprises a second servo motor (5); the second servo motor (5) is matched and located on one side of the gear transmission box (4), and a second planetary reducer (6) is matched and installed at a power output end thereof; The first planetary reducer (3) and the second planetary reducer (6) are respectively connected to two power input ends of the gear transmission box (4) through their respective drive shafts; The gear transmission box (4) is driven by the first servo motor (2) and the first planetary reducer (3) to adjust the phase angle, thereby adjusting the position of the rotating drum (8); the rotating drum (8) is driven by the second servo motor (5), the second planetary reducer (6) and the gear transmission box (4) to generate a lift perpendicular to the flow direction in the wind tunnel flow field based on the Magnus effect, so as to achieve thrust assistance and roll reduction for the ship model (9); The rotating drum experimental test device further comprises an intelligent control system; the intelligent control system comprises a central processing unit (101), a data acquisition module (102), a drive module (103), an operation terminal (105) and a power management module (106); The central processing unit (101) is responsible for executing control algorithms, processing sensor data and sending control instructions, and is connected to a communication interface (104); The signal input end of the data acquisition module (102) is electrically connected to the force sensor (7), and the signal output end is electrically connected to the central processing unit (101); the data acquisition module (102) is responsible for acquiring the signal of the force sensor (7) and performing analog-to-digital conversion for processing by the central processing unit (101); The signal output end of the driving module (103) is electrically connected to the second servo motor (5), and the signal input end is matched and connected to the communication interface (104) and is electrically connected to the central processing unit (101) through the communication interface (104); the driving module (103) is used to receive instructions from the central processing unit (101) and drive the second servo motor (5) to operate so as to adjust the rotation speed of the rotating drum (8); The operation terminal (105) is electrically connected to the central processing unit (101); The power management module (106) is electrically connected to the force sensor (7), the central processing unit (101), the data acquisition module (102), the drive module (103), the communication interface (104), the operation terminal (105) and the second servo motor (5), respectively.

2. The rotating drum test device capable of boosting and stabilizing the rolling motion as claimed in claim 1, characterized in that: The drive shaft of the first planetary reducer (3) is matched and connected to one of the power input ends of the gear transmission box (4) by means of a keyed mounting method.

3. The rotating drum test device capable of boosting and stabilizing the rolling motion as claimed in claim 1, characterized in that: The power output end of the gear transmission box (4) is matched and connected to one end of the rotating drum (8) in a keyed mounting manner.

4. The rotating drum test device capable of boosting and stabilizing the rolling motion as claimed in claim 1, characterized in that: The rotating drum (8) is a retractable rotating drum made of high-strength lightweight material.

5. The rotating drum test device capable of boosting and stabilizing the rolling motion as claimed in claim 1, characterized in that: The communication interface (104) adopts any one of RS-232, USB and Ethernet ports, and is used for data exchange between the central processing unit (101) and the drive module (103).

6. The rotating drum test device capable of boosting and stabilizing the rolling motion as claimed in claim 1, characterized in that: The operation terminal (105) comprises a display screen and an operation interface, which allows an operator to view real-time data, modify parameters and perform manual operation.

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