Force fighting test bench and application thereof

Abstract

The invention belongs to the field of aerospace aircrafts, and particularly relates to a force fighting test stand and application thereof. The invention provides a force fighting test bench, which comprises a test bench panel, more than two actuators, a simulation control surface, a torque sensor and a load simulator, and is characterized in that the actuators, the simulation control surface, the torque sensor and the load simulator are mounted on the surface of the test bench panel; the actuator drives the shaft of the load simulator to rotate through the simulation control surfaces, and the two adjacent simulation control surfaces are connected through the shaft of the load simulator; the torque sensor is provided on a shaft of the load simulator. The invention also provides an application of the force fighting test bench in an aircraft actuation system. According to the invention, the torque sensor is installed on the shaft, and the torque of different actuators on the shaft is measured, so that the measurement of the force fighting during the parallel driving of different actuators is realized, and the technical defect that the force fighting of the parallel driving actuation system cannot be measured in the prior art is solved.

Description

Technical Field

[0001] This application belongs to the field of aerospace vehicles, and in particular relates to a force dispute testing rig and its application. Background Technology

[0002] For the actuation systems of critical subsystems in flight control systems, high reliability and safety are required. Redundancy technology is a major method to improve the reliability of systems and components. Among them, parallel drive is the preferred form of redundant actuation system, which has advantages such as large output force, small fault transients, and low requirements for fault detection.

[0003] In parallel-drive systems, multiple actuators jointly drive aircraft control surfaces. Accumulated manufacturing and installation errors lead to inconsistent outputs from different actuators, resulting in high torsional stiffness of the control surfaces and causing force conflicts among multiple active actuators on the same control surface. This force conflict is even more complex when using dissimilar actuators for control surface actuation. The existence of force conflicts affects the performance of the actuation system, causing additional wasted energy consumption and potentially leading to fatigue or damage to the aircraft control surface structure. Currently, there are no methods or means to measure force conflicts in parallel-drive actuation systems, thus affecting the system's performance.

[0004] Therefore, developing a force conflict testing test bench and its application to solve the technical deficiency in existing technologies that cannot measure force conflicts in parallel drive actuation systems has become an urgent problem for those skilled in the art. Summary of the Invention

[0005] Therefore, it is necessary to address the technical deficiency in existing technologies that cannot determine force disputes in parallel drive actuation systems by providing a force dispute testing bench and its application.

[0006] This application provides a force conflict test bench, which includes: a test bench panel, two or more actuators, a simulated control surface, a torque sensor, and a load simulator, wherein the actuators, the simulated control surface, the torque sensor, and the load simulator are mounted on the surface of the test bench panel.

[0007] The actuator corresponds one-to-one with the simulated control surface. The actuator drives the shaft of the load simulator to rotate through the simulated control surface. Two adjacent simulated control surfaces are connected through the shaft of the load simulator. When the number of actuators is greater than three, the shafts of adjacent load simulators are an integrated structure. The torque sensor is installed on the load simulator and is used to measure the force distribution when the load simulator rotates.

[0008] In one embodiment, the load simulator further includes: a bearing, a bearing bracket, a shift fork, an earring handle, and a spring plate; The bearing is sleeved on the outside of the shaft, and the bearing is fixed to the surface of the test bench panel by the bearing bracket; One end of the shift fork is fitted onto the outside of the shaft, and the other end of the shift fork is connected to the earring handle, which is connected to the spring plate. The torque sensor is mounted on the shaft between the shift fork and the simulated control surface.

[0009] In one embodiment, the bearing includes a first bearing and a second bearing, wherein the diameter of the first bearing is larger than that of the second bearing, and the second bearing is disposed outside the first bearing.

[0010] In one embodiment, the load simulator further includes a spring plate fixing clamp and a spring plate bracket, wherein the spring plate is mounted on the spring plate bracket via the spring plate fixing clamp, and the spring plate bracket is disposed on the surface of the test bench panel.

[0011] In one embodiment, the force conflict test bench further includes a shrink sleeve, through which the simulated rudder surface is connected to the shaft.

[0012] In one embodiment, the spring plate comprises a plurality of spring steels arranged in parallel and dispersed manner.

[0013] In one embodiment, the spring steel is 65Mn spring steel.

[0014] In one embodiment, the force dispute test bench further includes an actuator bracket, wherein the actuator is mounted on the surface of the test bench panel via the actuator bracket, and the actuator bracket is detachably connected to the test bench panel.

[0015] In one embodiment, the actuator is equipped with a displacement sensor.

[0016] In one embodiment, the bearing support includes a first bearing support and a second bearing support, wherein the first bearing is fixed to the surface of the test bench panel via the first bearing support, and the second bearing is fixed to the surface of the test bench panel via the second bearing support.

[0017] This application also provides an application of the force conflict test bench described in any one of the above in an aircraft actuation system.

[0018] In summary, this application provides a force conflict testing rig, comprising: a rig panel, two or more actuators, simulated control surfaces, a torque sensor, and a load simulator. The actuators, simulated control surfaces, torque sensors, and load simulator are mounted on the surface of the rig panel. Each actuator corresponds one-to-one with a simulated control surface, and the actuator drives the shaft of the load simulator to rotate via the simulated control surface. Adjacent simulated control surfaces are connected via the shaft of the load simulator. When the number of actuators is greater than three, the shafts of adjacent load simulators are integrated. The torque sensor is disposed on the shaft of the load simulator and is used to measure the force conflict when the load simulator rotates. This application also provides an application of the above-mentioned force conflict testing rig in an aircraft actuation system. In the technical solution provided by this application, by installing a torque sensor on the shaft, the torque of different actuators on the shaft is measured, thereby realizing the measurement of force conflict when different actuators are driven in parallel. The force conflict testing rig and its application provided by this application solve the technical deficiency in the prior art that it is impossible to measure the force conflict of parallel-drive actuation systems. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 A schematic diagram of the planar structure of a force dispute testing bench provided in the embodiments of this application; Figure 2 A top view of a force dispute testing bench provided in the embodiments of this application; Figure 3 A partially enlarged schematic diagram of the fork in a force dispute testing test bench provided in this application embodiment; Figure 4 A cross-sectional schematic diagram of a bearing in a force dispute testing rig provided for an embodiment of this application; Figure 5 A cross-sectional schematic diagram of a bearing support in a force dispute testing rig provided in an embodiment of this application; The components include: test bench panel 1, actuator 2, simulated control surface 3, torque sensor 4, shaft 51, first bearing 521, second bearing 522, first bearing bracket 531, second bearing bracket 532, shift fork 54, earring handle 55, spring plate 56, spring plate fixing clamp 57, spring plate bracket 58, and actuator bracket 6. Detailed Implementation

[0021] This application provides a force conflict testing bench and its application to address the technical deficiency in the prior art that it is impossible to measure force conflicts in parallel drive actuation systems.

[0022] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0023] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Please see Figure 1 This application provides a force dispute testing bench, including: a test bench panel 1, two or more actuators 2, simulated control surfaces 3, torque sensors 4, and a load simulator. The actuators 2, simulated control surfaces 3, torque sensors 4, and load simulator are mounted on the surface of the test bench panel 1. Each actuator 2 corresponds to one simulated control surface 3, and the actuator 2 drives the shaft 51 of the load simulator to rotate via the simulated control surfaces 3. Two adjacent simulated control surfaces 3 are connected via the shaft 51 of the load simulator. When the number of actuators 2 is greater than three, the shafts 51 of adjacent load simulators are integrated. The torque sensor 4 is disposed on the shaft 51 of the load simulator and is used to measure the force dispute when the load simulator rotates. This application provides a force dispute testing bench and its application, solving the technical defect in the prior art that cannot measure the force dispute of parallel drive actuation systems.

[0029] The technical solution provided in this application provides an experimental scheme for measuring force conflict by installing two or more actuators 2 on the same test bench. After the actuator 2 is started, it drives the simulated control surface 3 to rotate. The simulated control surface 3 is installed on the shaft 51 of the load simulator. The load simulator transmits the load force evenly to the simulated control surface 3. At this time, after the simulated control surface 3 is subjected to the load force, the torque sensor 4 set on the shaft 51 can sense and measure the force conflict between the two or more actuators 2 and obtain the force conflict data between the actuators 2.

[0030] exist Figure 1 and Figure 2The technical solution shown is a force conflict test bench for measuring the force conflict between two actuators 2. The two actuators 2 are installed on the upper and lower sides of the test bench panel 1. Each actuator 2 is connected to the shaft 51 of the load simulator via its own different simulated control surface 3. When the two actuators 2 are activated, two different torque sensors 4 installed on the shaft 51 output torque results, thus accurately outputting the force conflict between the two actuators 2.

[0031] In practical applications, the force conflict test bench provided in this application embodiment can also be used to determine the force conflict of two or more actuators, taking three parallel actuators as an example. For ease of subsequent description, the three parallel actuators are, from top to bottom, the first actuator, the second actuator, and the third actuator. The first and second actuators drive the shaft of the first load simulator to rotate through the simulated control surface, and the second and third actuators drive the shaft of the second load simulator to rotate through the simulated control surface. At this time, the first load simulator is set between the first and second actuators, and the second load simulator is set between the second and third actuators; wherein, the shafts of the first and second load simulators are an integrated structure, and the first, second, and third actuators correspond to different torque sensors. When it is necessary to measure the force conflict among the first, second, and third actuators, all three actuators are activated simultaneously. The three different torque sensors will simultaneously acquire torque data from the shaft, thus allowing for the determination of the force conflict. When it is necessary to measure the force conflict between the first and second actuators, only the first and second actuators need to be activated, while the third actuator is turned off. In this case, the torque data acquired by the torque sensors corresponding to the first and second actuators can be used to determine the force conflict between them. Similarly, when it is necessary to measure the force conflict between the first and third actuators, only the first and third actuators need to be activated, while the second actuator is turned off. In this case, the torque data acquired by the torque sensors corresponding to the first and third actuators can be used to determine the force conflict between them.

[0032] Similarly, the force conflict situation of four or five actuators connected in parallel can also be determined by using the same force conflict test bench, which will not be elaborated here.

[0033] For further optimization of the technical solution, please refer to [link / reference]. Figure 3While ensuring that the load simulator can stably provide load and ensure the normal operation of the force dispute test bench, the technical solution provided in this application embodiment also takes into account the simple structure of the load simulator, which is convenient for daily testing and regular maintenance. The load simulator further includes: a bearing, a bearing bracket, a shift fork 54, an earring handle 55, and a spring plate 56; the bearing is sleeved on the outside of the shaft 51, and the bearing is fixed to the surface of the test bench panel 1 by the bearing bracket; one end of the shift fork 54 is sleeved on the outside of the shaft 51, and the other end of the shift fork 54 is connected to the earring handle 55, and the earring handle 55 is connected to the spring plate 56; the torque sensor 4 is set on the shaft 51 between the shift fork 54 and the simulated control surface 3.

[0034] Force is transmitted through shaft 51 connected to simulated control surface 3, causing shaft 51 to rotate. Bearings support the rotation of shaft 51 and are fixed to test bench panel 1 via bearing brackets. When shaft 51 rotates, the external force applied by actuator 2 is transmitted to earring handle 55 through shift fork 54 mounted on shaft 51. At this time, the upward push of shift fork 54 causes earring handle 55 to be pressed down, and the spring plate 56 connected to earring handle 55 provides passive load through bending deformation. At this time, torque sensor 4 installed between shift fork 54 and simulated control surface 3 can accurately sense the torque of actuator 2 and measure the force conflict between different actuators 2.

[0035] Please see here. Figure 4 To further optimize the technical solution and prevent the bearing from slipping during the rotation of shaft 51, the force dispute test bench provided in this application includes a first bearing 521 and a second bearing 522. The diameter of the first bearing 521 is larger than that of the second bearing 522, and the second bearing 522 is located outside the first bearing 521. This stepped bearing structure design effectively prevents the bearing from slipping during the rotation of shaft 51.

[0036] To further optimize the technical solution and better install and fix the first bearing 521 and the second bearing 522, please refer to [link / reference needed]. Figure 5 In the technical solution provided in this application embodiment, the bearing bracket includes: a first bearing bracket 531 and a second bearing bracket 532. The first bearing 521 is fixed to the surface of the test bench panel 1 through the first bearing bracket 531, and the second bearing 522 is fixed to the surface of the test bench panel 1 through the second bearing bracket 532.

[0037] To better install and secure the spring plate 56, and to prevent it from slipping under external force from the earring handle 55, thus ensuring a stable passive load, the load simulator provided in this embodiment further includes a spring plate clamp 57 and a spring plate bracket 58. The spring plate 56 is mounted on the spring plate bracket 58 via the spring plate clamp 57, and the spring plate bracket 58 is disposed on the surface of the test bench panel 1.

[0038] In practical applications, adjusting the position of the spring plate bracket 58 changes the length of the spring plate 56, thereby altering the stiffness of the applied elastic load and thus changing the load force. Changing the position of the earring handle 55 alters the lever arm of the applied elastic force, achieving adjustment of the load force. Furthermore, changing the number of spring plates 56 fixed by the spring plate fixing clamp 57 also adjusts the loading force. The technical solution provided in this example embodiment can provide different load forces for different types of actuators and control surfaces, achieving diversified and accurate adjustment of the load force.

[0039] To better meet the load transmission requirements in high-load applications, the force dispute test bench provided in this application embodiment further includes: a shrink sleeve, and the simulated rudder surface 3 is connected to the shaft 51 through the shrink sleeve.

[0040] To further optimize the technical solution, while ensuring that the spring plate 56 can stably provide passive load, the design requirements of the spring plate 56 being simple in structure and small in volume are also taken into account. In the technical solution provided in this application embodiment, the spring plate 56 includes a number of spring steels, which are arranged in parallel and dispersed.

[0041] To further optimize the technical solution and effectively ensure the structural stability of the spring steel while reducing its manufacturing cost, the spring steel provided in this application embodiment is 65Mn spring steel.

[0042] The force dispute testing bench provided in this application embodiment further includes: an actuator bracket 6, wherein the actuator 2 is mounted on the surface of the test bench panel 1 via the actuator bracket 6, and the actuator bracket 6 is detachably connected to the test bench panel 1. Mounting the actuator 2 on the surface of the test bench panel 1 via the actuator bracket 6 ensures the stability of the connection structure between the actuator 2 and the test bench panel 1, and also facilitates the disassembly of the actuator 2, allowing it to be replaced according to different testing requirements.

[0043] To further optimize the technical solution and provide better multi-maintenance output for force conflicts between different actuators 2, the technical solution provided in this application embodiment includes a displacement sensor installed on the actuator 2. The displacement sensor measures the displacement, thus better characterizing the force conflicts between different actuators 2.

[0044] This application provides a force conflict test bench, which for the first time proposes to objectively and accurately output the force conflict situation of different actuators 2 by installing two or more parallel actuators 2 on the test bench, connecting them through a shaft 51, and then outputting torque through a torque sensor 4 installed on the shaft 51. This can be widely used in the research and development of aircraft actuator systems.

[0045] In summary, this application provides a force conflict testing rig, comprising: a rig panel, two or more actuators, simulated control surfaces, a torque sensor, and a load simulator. The actuators, simulated control surfaces, torque sensors, and load simulator are mounted on the surface of the rig panel. Each actuator corresponds one-to-one with a simulated control surface, and the actuator drives the shaft of the load simulator to rotate via the simulated control surface. Adjacent simulated control surfaces are connected via the shaft of the load simulator. When the number of actuators is greater than three, the shafts of adjacent load simulators are integrated. The torque sensor is disposed on the shaft of the load simulator and is used to measure the force conflict when the load simulator rotates. This application also provides an application of the above-mentioned force conflict testing rig in an aircraft actuation system. In the technical solution provided by this application, by installing a torque sensor on the shaft, the torque of different actuators on the shaft is measured, thereby realizing the measurement of force conflict when different actuators are driven in parallel. The force conflict testing rig and its application provided by this application solve the technical deficiency in the prior art that it is impossible to measure the force conflict of parallel-drive actuation systems.

[0046] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. Furthermore, other implementation methods can be derived from the above embodiments, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure.

[0047] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A force dispute testing bench, characterized in that, The force conflict test bench includes: a test bench panel, two or more actuators, a simulated control surface, a torque sensor, and a load simulator, wherein the actuators, simulated control surfaces, torque sensors, and load simulator are mounted on the surface of the test bench panel; The actuator corresponds one-to-one with the simulated control surface. The actuator drives the shaft of the load simulator to rotate through the simulated control surface. Two adjacent simulated control surfaces are connected through the shaft of the load simulator. When the number of actuators is greater than three, the shafts of adjacent load simulators are an integrated structure. The torque sensor is installed on the load simulator and is used to measure the force distribution when the load simulator rotates.

2. The force dispute testing bench according to claim 1, characterized in that, The load simulator also includes: bearings, bearing brackets, shift forks, earring handles, and spring plates; The bearing is sleeved on the outside of the shaft, and the bearing is fixed to the surface of the test bench panel by the bearing bracket; One end of the shift fork is fitted onto the outside of the shaft, and the other end of the shift fork is connected to the ear ring handle, which is connected to the spring plate; the torque sensor is disposed on the shaft between the shift fork and the simulated rudder surface.

3. The force dispute testing bench according to claim 2, characterized in that, The bearing includes a first bearing and a second bearing, wherein the diameter of the first bearing is larger than that of the second bearing, and the second bearing is disposed outside the first bearing.

4. The force dispute testing bench according to claim 2 or 3, characterized in that, The load simulator further includes a spring plate fixing clamp and a spring plate bracket, wherein the spring plate is mounted on the spring plate bracket via the spring plate fixing clamp, and the spring plate bracket is disposed on the surface of the test bench panel.

5. The force dispute testing bench according to claim 1, characterized in that, The force conflict test bench also includes an expansion sleeve, through which the simulated rudder surface is connected to the shaft.

6. The force dispute testing bench according to any one of claims 2 to 4, characterized in that, The spring plate comprises a plurality of spring steels, which are arranged in parallel and dispersed manner.

7. The force dispute testing bench according to claim 6, characterized in that, The spring steel is 65Mn spring steel.

8. The force dispute testing bench according to claim 1, characterized in that, The force dispute test bench further includes an actuator bracket, wherein the actuator is mounted on the surface of the test bench panel via the actuator bracket, and the actuator bracket is detachably connected to the test bench panel.

9. The force dispute testing bench according to claim 3, characterized in that, The bearing support includes a first bearing support and a second bearing support, wherein the first bearing is fixed to the surface of the test bench panel via the first bearing support, and the second bearing is fixed to the surface of the test bench panel via the second bearing support.

10. An application of the force conflict test bench according to any one of claims 1 to 9 in an aircraft actuation system.

Images