Cabin door state simulation system and simulation method applied to aircraft

Abstract

The invention discloses a cabin door state simulation system and simulation method applied to an aircraft, and the system comprises a supporting platform which is provided with a supporting surface and a supporting part with one end fixed on the supporting surface; the posture adjusting unit is used for fixing a target cabin door and adjusting the posture angle change of the target cabin door, and the posture adjusting unit is connected with the supporting piece and arranged at an interval relative to the supporting surface; the position adjusting unit is used for adjusting the position change of the target cabin door, and the position adjusting unit is connected with the posture adjusting unit and the target cabin door; the measuring unit is used for measuring the attitude angle variable quantity and the position variable quantity of the target cabin door, and the measuring unit is connected with the fixing support. The cabin door state simulation system disclosed by the invention can simulate the change state of the aircraft cabin door in the air on the ground, so that the cost of cabin door change state test verification is reduced, and the convenience of test verification is improved.

Description

Technical Field

[0001] The present invention relates to the field of aviation technology, and particularly to a cabin door state simulation system and a simulation method applied to an aircraft. Background Art

[0002] The cabin door of a civil aircraft, as an important part of the aircraft structure and function, is a key factor directly related to flight safety, operation efficiency, and passenger experience. Due to the huge pressure difference borne by the cabin door in the air, deformation will occur around the cabin door. At the same time, due to the ascent and descent of the aircraft, the cabin door will form different angles with the ground in the air. Therefore, there are great differences between the in-air state and the on-ground state of the cabin door. Considering a series of functions such as normal entry, emergency entry and exit, and emergency rescue of the cabin door, from the perspective of airworthiness, it is necessary to verify the functions of the cabin door during in-air flight.

[0003] In the prior art, most of the tests and verifications of cabin door functions are carried out during the flight test of the aircraft. Although this method can truly reproduce the actual flight scenario, there are still defects such as high verification cost and complex and cumbersome verification process. Summary of the Invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is how to improve the convenience of the test verification of the changing state of the cabin door and reduce the test verification cost.

[0005] To solve at least one of the above-mentioned technical problems, the present invention discloses a cabin door state simulation system and a simulation method applied to an aircraft.

[0006] According to one aspect of the present disclosure, there is provided a cabin door state simulation system applied to an aircraft, including:

[0007] A support platform having a support surface and a support member fixed at one end on the support surface;

[0008] An attitude adjustment unit for fixing a target cabin door and adjusting the change of the attitude angle of the target cabin door. The attitude adjustment unit is connected to the support member and is spaced apart from the support surface;

[0009] A position adjustment unit for adjusting the position change of the target cabin door. The position adjustment unit is connected to the attitude adjustment unit and is connected to the target cabin door;

[0010] A measurement unit for measuring the change amount of the attitude angle and the position change amount of the target cabin door. The measurement unit is connected to the attitude adjustment unit.

[0011] In some possible embodiments, the attitude adjustment unit includes a fixed bracket, a connecting member, and an angle adjustment assembly;

[0012] The connecting piece is used to connect the fixed bracket and the target hatch door;

[0013] The fixed bracket is used to fix the target hatch door; the size of the fixed bracket matches the size of the target hatch door, and the target hatch door is arranged parallel and spaced apart from the fixed bracket;

[0014] The angle adjustment assembly is used to adjust the angle of the fixed bracket so that the fixed bracket drives the target hatch door to move to a target angle.

[0015] In some possible embodiments, the number of the connecting pieces is at least four;

[0016] The connecting piece is a telescopic structure and is detachably connected to the fixed bracket.

[0017] In some possible embodiments, the angle adjustment assembly includes:

[0018] Support bearings, the number of which is at least two, and each support bearing is connected to a fixed crossbeam;

[0019] Rotary bearings, the number of which is at least two, and each rotary bearing is connected to the fixed bracket;

[0020] A rotary shaft, both ends of which are respectively embedded in the support bearings, and the rotary shaft is embedded in the rotary bearings;

[0021] A gear integrated structure, which is respectively connected to the rotary shaft and the fixed crossbeam;

[0022] A driving member, which is connected to the gear integrated structure and is used to drive the gear integrated structure so that the gear integrated structure drives the rotary shaft to move to adjust the attitude angle change of the fixed bracket.

[0023] In some possible embodiments, the attitude adjustment unit further includes a locking assembly;

[0024] The locking assembly is used to lock the fixed bracket; the locking assembly includes:

[0025] Arc plates, the number of which is at least two, and both ends of each arc plate are respectively connected to the fixed bracket;

[0026] Pressing assemblies, the number of which is at least two, and each pressing assembly includes two pressing members; the two pressing members are respectively arranged on both sides of the arc plate and cooperate with each other to lock the arc plate;

[0027] Locking members, the number of which is at least two, are arranged on the pressing assemblies to lock the arc plates by adjusting the locking members;

[0028] The arc plate is used to cooperate with the pressing assembly to lock the fixed bracket.

[0029] In some possible embodiments, the arc plate is provided with uniformly arranged angle scale lines for determining the change amount of the attitude angle of the fixed bracket.

[0030] In some possible embodiments, the attitude adjustment unit further includes a fixed cross beam;

[0031] The fixed cross beam is arranged on one side surface of the fixed bracket perpendicular to the support surface and is used to connect the attitude adjustment unit and the support member.

[0032] In some possible embodiments, the position adjustment unit includes a lead screw adjustment assembly and a rigid adjustment block;

[0033] The lead screw adjustment assembly includes:

[0034] Lead screws, arranged in a direction perpendicular to the support surface and / or arranged in a direction parallel to the support surface;

[0035] A lead screw integrated body for clamping the lead screws so that one end of each lead screw is connected to the rigid adjustment block and the other end of each lead screw is exposed;

[0036] The lead screws are used to provide extrusion force and cooperate with the rigid adjustment block to adjust the position change of the target hatch;

[0037] The rigid adjustment block is connected to the target hatch and is used to transfer the extrusion force to the target hatch.

[0038] In some possible embodiments, the position adjustment unit further includes a structural connection plate;

[0039] The structural connection plate is used to connect the lead screw adjustment assembly and the fixed bracket.

[0040] In some possible embodiments, the number of the lead screw adjustment assemblies, the rigid adjustment blocks and the structural connection plates is the same and is at least four, and they are arranged at the four corners of the fixed bracket.

[0041] In some possible embodiments, the measurement unit includes an angle sensor, a distance sensor and a sensor bracket;

[0042] The sensor bracket is an L-shaped structure; one end of the sensor bracket extends along a direction parallel to the support surface and is connected to the fixed bracket;

[0043] The other end of the sensor bracket extends in another direction parallel to the support surface, and is provided with an angle sensor or a distance sensor.

[0044] In some possible embodiments, the number of the sensor brackets is multiple, and the positions of the sensor brackets are at least arranged at the four corners of the fixed bracket and at the positions of the fixed bracket close to the fixed cross beam.

[0045] In some possible embodiments, the measurement unit further includes:

[0046] A data receiving device, communicatively connected to the angle sensor and the distance sensor, for receiving the change amount of the attitude angle of the target hatch collected by the angle sensor and the change amount of the position of the target hatch collected by the distance sensor.

[0047] According to a second aspect of the present disclosure, there is provided a method for simulating the state of a hatch of an aircraft, the method including:

[0048] Fixing a target hatch to an attitude adjustment unit;

[0049] Adjusting the attitude adjustment unit according to preset simulation parameters so that the target hatch is fixed at a target angle;

[0050] Connecting a position adjustment unit and a measurement unit to the attitude adjustment unit, and adjusting the position adjustment unit according to the preset simulation parameters so that the target hatch moves to a target position;

[0051] Based on the target angle, the target position and the measurement unit, determining the change amount of the attitude angle and the change amount of the position corresponding to the target hatch.

[0052] In some possible embodiments, the fixing the target hatch to the attitude adjustment unit includes:

[0053] Adjusting the connecting piece and the fixed bracket so that the sizes of the connecting piece and the fixed bracket match the hatch size of the target hatch;

[0054] Connecting the target hatch to the fixed bracket through the connecting piece, and arranging the target hatch and the fixed bracket in parallel at an interval.

[0055] In some possible embodiments, the adjusting the attitude adjustment unit according to the preset simulation parameters so that the target hatch is fixed at the target angle includes:

[0056] Adjusting the driving member so that the fixed bracket drives the target hatch to rotate to the target angle under the drive of the gear integrated structure and the rotating shaft;

[0057] And adjust the locking structure so that the target hatch is fixed at the target angle.

[0058] In some possible embodiments, adjusting the position adjustment unit according to the preset simulation parameters so that the target hatch moves to the target position includes:

[0059] Disassemble the connecting piece;

[0060] Adjust the position of the lead screw so that the lead screw presses against the rigid adjustment block, and transmit the pressing force generated by the lead screw to the target hatch through the rigid adjustment block, so that the target hatch moves to the target position.

[0061] In some possible embodiments, determining the attitude angle change amount and the position change amount corresponding to the target hatch based on the target angle, the target position, and the measurement unit includes:

[0062] Determine the attitude angle change amount through the angle sensor and the target angle;

[0063] Determine the position change amount through the distance measuring sensor and the target position;

[0064] Receive the attitude angle change amount and the position change amount through the data receiving device.

[0065] Implementing the present invention has the following beneficial effects:

[0066] In the present invention, the hatch state simulation system includes a support platform, and a support member is placed on the support surface of the support platform. The attitude adjustment unit is fixedly placed on the support platform, and the attitude adjustment unit is spaced from the support surface, providing sufficient operating space for the attitude adjustment unit to adjust the attitude angle change of the target hatch, thereby improving the flexibility of adjusting the attitude of the target hatch; by setting a position adjustment unit to measure the relative position change of the target hatch, and setting an attitude adjustment unit to measure the attitude change of the target hatch, the state change of the target hatch in the air can be simulated on the ground, thereby improving the convenience of simulating and verifying the state change of the hatch, and reducing the cost and operation complexity; in addition, the measurement unit and the position adjustment unit are both connected to the attitude adjustment unit so that the measurement unit can sensitively measure the attitude angle change and the position change, thereby improving the accuracy and reliability of measuring the state change of the target hatch. Description of the Drawings

[0067] To more clearly illustrate the technical solution of the present invention, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0068] Figure 1 Schematic structural diagram corresponding to the hatch state simulation system provided by the embodiment of the present invention;

[0069] Figure 2 Schematic structural diagram corresponding to the support platform provided by the embodiment of the present invention;

[0070] Figure 3 Schematic structural diagram corresponding to the attitude adjustment unit provided by the embodiment of the present invention;

[0071] Figure 4 Schematic structural diagram corresponding to the position adjustment unit provided by the embodiment of the present invention;

[0072] Figure 5 Schematic structural diagram corresponding to the measurement unit provided by the embodiment of the present invention;

[0073] Figure 6 Schematic flow diagram corresponding to the hatch state simulation method provided by the embodiment of the present invention.

[0074] Among them, the reference numerals are:

[0075] 100 - support platform, 110 - support surface, 120 - support member, 130 - clamping groove, 140 - positioning bolt;

[0076] 200 - attitude adjustment unit, 210 - fixed bracket, 211 - rigid support plate, 220 - connecting member, 230 - fixed crossbeam, 240 - locking assembly, 241 - arc plate, 242 - pressing assembly, 243 - pressing member, 244 - locking member; 250 - angle adjustment assembly, 251 - support bearing, 252 - rotating bearing, 253 - rotating shaft, 254 - gear integrated structure, 255 - driving member;

[0077] 300 - position adjustment unit, 310 - rigid adjustment block, 320 - structural connection plate, 330 - lead screw adjustment assembly, 331 - lead screw, 332 - lead screw integrated main body;

[0078] 400 - measurement unit, 410 - sensor bracket, 420 - distance measuring sensor, 430 - angle sensor, 440 - data receiving device;

[0079] 500 - target hatch. Detailed implementation manners

[0080] The following will clearly and completely describe the technical solutions in the embodiments of this specification in conjunction with the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0081] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or server that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0082] The following will detail various exemplary embodiments, features, and aspects of the present disclosure with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0083] The special term "exemplary" herein means "serving as an example, embodiment, or illustration". Any embodiment described herein as "exemplary" does not have to be construed as superior to or better than other embodiments.

[0084] The term "and / or" herein merely describes an association relationship of associated objects and indicates that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the term "at least one" herein means any one of a plurality or any combination of at least two of a plurality. For example, including at least one of A, B, and C may represent including any one or more elements selected from the set composed of A, B, and C.

[0085] In addition, to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. Those skilled in the art should understand that the present disclosure can also be implemented without some specific details. In some instances, methods, means, elements, and circuits well-known to those skilled in the art are not described in detail to highlight the gist of the present disclosure.

[0086] Figure 1 The structural schematic diagram corresponding to the hatch state simulation system provided by the embodiment of the present invention can be applied to any aircraft capable of performing air flight and requiring hatch function test verification, such as civil aircraft, etc.; please refer to Figure 1 , a hatch state simulation system applied to an aircraft, including:

[0087] A support platform 100 having a support surface 110 and a support member 120 with one end fixed on the support surface 110;

[0088] An attitude adjustment unit 200 for fixing the target hatch 500 and adjusting the attitude angle change of the target hatch 500. The attitude adjustment unit 200 is connected to the support member 120 and is spaced apart from the support surface 110;

[0089] A position adjustment unit 300 for adjusting the position change of the target hatch 500. The position adjustment unit 300 is connected to the attitude adjustment unit 200 and is connected to the target hatch 500;

[0090] A measurement unit 400 for measuring the attitude angle change amount and position change amount of the target hatch 500. The measurement unit 400 is connected to the attitude adjustment unit 200.

[0091] In a specific embodiment, Figure 2 The structural schematic diagram corresponding to the support platform 100 provided by the embodiment of the present invention; as Figure 2 shown, the support platform 100 has two surfaces facing each other in its thickness direction, and one surface connected to one end of the support member 120 is the support surface 110. A positioning bolt 140 can be provided on the support surface 110, and the number of positioning bolts 140 can be multiple. When the number of positioning bolts 140 is 4, its positions can be set at the four corners of the support surface 110. The side surface of the support platform 100 facing away from the support member 120 has a plurality of clamping grooves 130. Before the support platform 100 is fixedly connected to the operating machine tool, the support platform 100 can be positioned by the positioning bolts 140 and cooperate with the clamping grooves 130 so that the support platform 100 can be fixedly arranged on the operating machine tool.

[0092] The support member 120 can be formed by a rectangular frame and three triangular frames in cooperation. Among them, two triangular frames are arranged at both ends of the rectangular frame, and the third triangular frame is sleeved inside the rectangular frame, and its height coincides with the midline of the rectangular frame. The support member 120 formed by the above structure has a more stable structure and can provide better support for other structures in the hatch state simulation system. On the support surface 110, the number of support members 120 can be multiple, such as Figure 2As shown, there can be two symmetrical support members 120 so that the support members 120 can be evenly stressed, thereby reducing the impact of uneven stress on the accuracy of the hatch state simulation.

[0093] At one end of the support member 120 away from the support surface 110, holes for connecting with the attitude adjustment unit 200 are also provided on the rectangular frame, so that the attitude adjustment unit 200 is fixed to the support member 120 through fasteners matching the holes.

[0094] Regarding the attitude adjustment unit 200, Figure 3 is the structural schematic diagram corresponding to the attitude adjustment unit 200 provided by the embodiment of the present invention, as Figure 3 shown, the attitude adjustment unit 200 includes a fixed bracket 210, a connecting member 220, and an angle adjustment assembly 250;

[0095] The number of the connecting members 220 is at least four; the connecting members 220 are telescopic structures and are detachably connected to the fixed bracket 210; the connecting members 220 are used to connect the fixed bracket 210 and the target hatch 500;

[0096] The fixed bracket 210 is used to fix the target hatch 500; the size of the fixed bracket 210 matches the size of the target hatch 500, and the target hatch 500 is arranged parallel and spaced apart from the fixed bracket 210;

[0097] The angle adjustment assembly 250 is used to adjust the angle of the fixed bracket 210 so that the fixed bracket 210 drives the target hatch 500 to move to the target angle.

[0098] In a specific embodiment, as Figure 3As shown in the figure, the attitude adjustment unit 200 includes a fixed bracket 210, a connecting member 220, and an angle adjustment assembly 250. The number of the connecting members 220 is multiple and they are symmetrically arranged on both sides of the fixed bracket 210; the fixed bracket 210 is used to fix the target hatch 500 in cooperation with the connecting members 220. The arrangement of the multiple connecting members 220 can make the gaps between each part of the target hatch 500 and the fixed bracket 210 the same, that is, the fixed bracket 210 can fix the target hatch 500 with the assistance of the connecting members 220 and is arranged parallel and at intervals to the target hatch 500. Since the attitude adjustment unit adjusts the attitude angle of the fixed bracket 210, and the fixed bracket 210 drives the target hatch 500 to move so that the attitude angle of the target hatch 500 changes. Therefore, in order to ensure that the change in the attitude angle of the target hatch 500 is the same as the change in the attitude angle of the fixed bracket 210, the two are arranged in parallel; at the same time, the fixed bracket 210 and the target hatch 500 are arranged with the same gap, which can not only reduce the possible wear or damage caused by direct contact between the fixed bracket 210 and the target hatch 500, but also reserve a space for size change for target hatches 500 of different sizes, thereby improving the adaptability and versatility of the hatch state simulation system.

[0099] In addition, in order to further improve the adaptability of the hatch state simulation system to hatches of different sizes, different models or different aircraft, the connecting member 220 can be set as a telescopic structure so that the same connecting member 220 can be adapted to target hatches 500 of different sizes, such as different thicknesses; since the connecting member 220 is detachably connected to the fixed bracket 210, or connecting members 220 adapted to target hatches 500 of different sizes and different models can be made. Or, the fixed bracket 210 can be set as a structure with adjustable size so that the outer contour size of the same fixed bracket 210 can match target hatches 500 of different sizes and different models; or fixed brackets 210 adapted to target hatches 500 of different sizes and different models can be made. Considering the operation convenience and test cost, preferably, the connecting member 220 can be set as a telescopic structure or the fixed bracket 210 can be set as a structure with adjustable size.

[0100] In addition, as Figure 3 shown, a rigid support plate 211 is further arranged on the fixed bracket 210. The number of the rigid support plates 211 can be multiple, Figure 3 two in this example. The arrangement of the rigid support plates 211 can improve the structural stiffness of the fixed bracket 210, thereby reducing the risk of damage to the fixed bracket 210 caused by the overweight of the target hatch 500.

[0101] The attitude adjustment unit 200 further includes a fixed cross beam 230;

[0102] The fixed cross beam 230 is disposed on one side surface of the fixed bracket 210 perpendicular to the support surface 110, and is used to connect the attitude adjustment unit 200 and the support member 120.

[0103] In a specific embodiment, both ends of the fixed cross beam 230 are respectively fixed to the two support members 120 through fasteners matching the holes provided on the rectangular frame, so that the attitude adjustment unit 200 can be connected to the support member 120. Of course, the support member 120 and the fixed cross beam 230 can also be connected in other ways.

[0104] In the support member 120, the height of the triangular frame is equal to the width of the rectangular frame, and the height of the triangular frame is greater than the distance from the fixed cross beam 230 to one end of the fixed bracket 210 close to the support surface 110. After the attitude adjustment unit 200 is fixed to the support member 120 through the fixed cross beam 230, there is a distance between one end of the fixed bracket 210 close to the support surface 110 and the support surface 110, so as to reserve a rotational change space for the target hatch 500 or the fixed bracket 210 of different sizes, thereby improving the adaptability and versatility of the hatch state simulation system.

[0105] The angle adjustment assembly 250 includes:

[0106] At least two support bearings 251, and each support bearing 251 is connected to the fixed cross beam 230;

[0107] At least two rotating bearings 252, and each rotating bearing 252 is connected to the fixed bracket 210;

[0108] A rotating shaft 253, both ends of the rotating shaft 253 are respectively embedded in the support bearings 251, and the rotating shaft 253 is embedded in the rotating bearings 252;

[0109] A gear integrated structure 254, which is respectively connected to the rotating shaft 253 and the fixed cross beam 230;

[0110] A driving member 255, which is connected to the gear integrated structure 254 and is used to drive the gear integrated structure 254, so that the gear integrated structure 254 drives the rotating shaft 253 to move, so as to adjust the attitude angle change of the fixed bracket 210.

[0111] In a specific embodiment, please continue to refer to Figure 3, the angle adjustment assembly 250 includes support bearings 251 symmetrically arranged at both ends of the rotating shaft 253, and a rotating bearing 252 disposed between the two support bearings 251. The rotating shaft 253 is respectively embedded or clamped in the support bearing 251 and the rotating bearing 252. The support bearing 251 is connected to the fixed cross beam 230, and the rotating bearing 252 is connected to the fixed bracket 210, so that the rotation of the rotating shaft 253 can drive the rotation of the fixed bracket 210, and then drive the target hatch 500 to rotate through the rotation of the fixed bracket 210, resulting in a change in the attitude angle.

[0112] A gear integrated structure 254 is connected to one end of the rotating shaft 253. The gear integrated structure 254 is also connected to the fixed cross beam 230 and the driving member 255, so that the gear integrated structure 254 can move under the drive of the driving member 255 and drive the rotating shaft 253 to move. Among them, the driving member 255 can be Figure 3 a manual adjustment device such as a rotary valve as shown, or can be replaced with an electric adjustment device such as a driving motor. The manual adjustment device can reduce costs and does not require energy consumption, and the electric adjustment device can improve the accuracy and efficiency of attitude angle adjustment. Therefore, the driving member 255 can be selected according to actual needs.

[0113] By setting the angle adjustment assembly 250 to adjust the angle change of the fixed bracket 210, and then the fixed bracket 210 drives the target hatch 500 to change synchronously, so that the change state of the target hatch 500 in the air can be simulated on the ground, thereby improving the convenience and flexibility of the hatch function test and reducing the cost of the test.

[0114] Furthermore, the attitude adjustment unit 200 further includes a locking assembly 240;

[0115] The locking assembly 240 is used to lock the fixed bracket 210; the locking assembly 240 includes:

[0116] Arc plates 241, the number of which is at least two, and both ends of each arc plate 241 are respectively connected to the fixed bracket 210; angle scale lines are arranged uniformly on the arc plate 241, which are used to determine the change amount of the attitude angle of the fixed bracket 210;

[0117] Pressing assemblies 242, the number of which is at least two, and each pressing assembly 242 includes two pressing members 243; the two pressing members 243 are respectively arranged on both sides of the arc plate 241 and cooperate with each other to lock the arc plate 241;

[0118] Locking members 244, the number of which is at least two, are arranged on the pressing assemblies 242, so that the pressing assemblies 242 lock the arc plate 241 by adjusting the locking members 244;

[0119] The arc plate 241 is used to cooperate with the pressing assembly 242 to lock the fixed bracket 210.

[0120] In a specific embodiment, after the target hatch 500 is adjusted to the target angle by the angle adjustment assembly 250, it is necessary to cooperate with the locking assembly 240 to fix the fixed bracket 210 at the target angle. Since the movement of the target hatch 500 is synchronized with the movement of the fixed bracket 210, locking the fixed bracket 210 can fix the target hatch 500 at the target angle.

[0121] Specifically, the locking assembly 240 includes an arc plate 241, a pressing assembly 242, and a locking member 244. Among them, the arc plate 241 is provided with uniformly arranged angle scale lines. Since both ends of the arc plate 241 are connected to the fixed bracket 210, the change amount of the attitude angle of the fixed bracket 210 during the adjustment process can be determined through the angle scale lines on the arc plate 241. The change amount of the attitude angle is the angle change sent when the target hatch 500 moves from the initial position to the position corresponding to the target angle, that is, the target angle. The number of arc plates 241 can be set to at least two so that the scale lines on the arc plate 241 can be clearly seen on either side of the fixed bracket 210, thereby improving the convenience and intuitiveness of the angle adjustment process.

[0122] Since the pressing assembly 242 is used to press the arc plate 241, so that the fixed bracket 210 is locked at the position corresponding to the target angle after moving to the target angle, the number of the pressing assemblies 242 is the same as the number of the arc plates 241. Each pressing assembly 242 includes two pressing members 243, and at least two locking members 244 can be provided on each pressing assembly 242. By adjusting the locking members 244, the two pressing members 243 included in each pressing assembly 242 can clamp the arc plate 241 to realize the fixation of the fixed bracket 210. The setting of the locking assembly 240 can improve the stability of the fixation of the fixed bracket 210, and further improve the accuracy of the adjustment of the hatch state of the target hatch 500.

[0123] For the position adjustment unit 300, Figure 4 is a schematic structural diagram corresponding to the position adjustment unit 300 provided by the embodiment of the present invention; as Figure 4 shown, the position adjustment unit 300 includes a lead screw adjustment assembly 330 and a rigid adjustment block 310;

[0124] The lead screw adjustment assembly 330 includes:

[0125] A lead screw 331, arranged in each direction perpendicular to the support surface 110, and / or arranged in each direction parallel to the support surface 110;

[0126] A lead screw integrated body 332 is used to clamp the lead screw 331, so that one end of each lead screw 331 is connected to the rigid adjustment block 310, and the other end of each lead screw 331 is exposed;

[0127] The lead screw 331 is used to provide extrusion force and cooperate with the rigid adjustment block 310 to adjust the position change of the target hatch 500;

[0128] The rigid adjustment block 310 is connected to the target hatch 500 and is used to transfer the extrusion force to the target hatch 500.

[0129] The position adjustment unit 300 further includes a structural connection plate 320; the structural connection plate 320 is used to connect the lead screw adjustment assembly 330 and the fixed bracket 210.

[0130] The lead screw adjustment assembly 330, the rigid adjustment block 310, and the structural connection plate 320 are the same in number and are at least four, and are arranged at the four corners of the fixed bracket 210.

[0131] In a specific embodiment, the change state of the target hatch 500 in the air, in addition to the attitude angle change of the target hatch 500 caused by the movement change of the aircraft, there is also deformation of the target hatch 500 caused by air pressure change. Since the stress on the corners is relatively large, it can be considered that the deformation of the target hatch 500 occurs at least at the four corners of the target hatch 500, and it is a change in the relative position of the four corners. Therefore, setting the position adjustment unit 300 can simulate the changes that occur to the target hatch 500 under the influence of air pressure, mainly set around and in the middle of the target hatch 500, and at least set at the four corners of the target hatch 500.

[0132] Specifically, the position adjustment unit 300 includes a lead screw adjustment assembly 330, a rigid adjustment block 310, and a structural connection plate 320. The lead screw adjustment assembly includes lead screws 331 arranged facing each other in any direction in the three-dimensional direction (i.e., in each direction perpendicular to the support surface 110 and in each direction parallel to the support surface 110), and a lead screw integrated body 332 for clamping and integrating the lead screws 331, so that the position adjustment unit 300 applies a three-dimensional six-direction extrusion force to the target hatch 500 by adjusting the lead screws 331. Among them, the specific number and position settings of the lead screws 331 can be adjusted according to different simulation requirements for the hatch state. For example, when it is necessary to adjust the hatch in all three-dimensional directions, the number of lead screws is set to be greater than 3, and at least 3 are arranged on 3 surfaces of the lead screw integrated body 332 that are perpendicular to each other in pairs.

[0133] Each lead screw adjustment assembly 330 corresponds to a rigid adjustment block 310. When the lead screw adjustment assembly 330 includes six lead screws 331, one end of each lead screw 331 can directly contact one side of the rigid adjustment block 310, and the other end is exposed, so that the extrusion force can be transmitted to the end in contact with the rigid adjustment block 310 through the exposed end, and the extrusion force can be transmitted to the target hatch 500 through the rigid adjustment block 310, causing a relative position change of the target hatch 500. At the same time, to avoid displacement in other directions that do not need to be adjusted, the lead screws 331 in other directions can be used to apply an extrusion force to the rigid adjustment block 310 in the opposite direction, so that there is no deformation in this direction.

[0134] Through the structural connection plate 320, the lead screw adjustment assembly 330 can be fixed to the fixed bracket 210 in the attitude adjustment unit 200, so that the lead screw adjustment assembly 330 can simulate the relative position change of the target hatch 500. As Figure 4 shown, there is a lead screw 331 in the lead screw adjustment assembly 330 that can pass through the structural connection plate 320, thereby improving the connection stability between the lead screw adjustment assembly 330 and the fixed bracket 210.

[0135] Since the lead screw adjustment assembly 330 transmits the extrusion force to the target hatch 500 through the rigid adjustment block 310 and is connected to the fixed bracket 210 through the rigid adjustment block 310, the number of the lead screw adjustment assembly 330, the rigid adjustment block 310, and the structural connection plate 320 is the same, and they are at least arranged at the four corners of the fixed bracket 210.

[0136] For the measurement unit 400, Figure 5 The following shows the structural schematic diagram corresponding to the measurement unit 400 provided by the embodiment of the present invention; as Figure 5 shown, the measurement unit 400 includes an angle sensor 430, a distance measurement sensor 420, and a sensor bracket 410;

[0137] The sensor bracket 410 is an L-shaped structure; one end of the sensor bracket 410 extends in a direction parallel to one direction of the support surface 110 and is connected to the fixed bracket 210;

[0138] The other end of the sensor bracket 410 extends in another direction parallel to the support surface 110 and is provided with an angle sensor 430 or a distance measurement sensor 420.

[0139] The number of the sensor brackets 410 is multiple, and the positions of the sensor brackets 410 are at least arranged at the four corners of the fixed bracket 210 and at the positions of the fixed bracket 210 close to the fixed cross beam 230.

[0140] The measurement unit 400 further includes a data receiving device 440, which is communicatively connected to the angle sensor 430 and the distance measuring sensor 420, and is configured to receive the attitude angle change amount of the target hatch 500 collected by the angle sensor 430 and the position change amount of the target hatch 500 collected by the distance measuring sensor 420.

[0141] In a specific embodiment, in order to improve the accuracy of hatch state simulation, the hatch state simulation system further includes a measurement unit 400. The measurement unit 400 includes an angle sensor 430, a distance measuring sensor 420, a sensor bracket 410, and a data receiving device 440.

[0142] Specifically, the angle sensor 430 is configured to measure the attitude angle change amount of the target hatch 500. Since the target hatch 500 rotates around the rotation axis 253 driven by the fixed bracket 210, and the rotation axis 253 is close to the fixed cross beam 230, the number of angle sensors 430 is generally set to 1, and the position is at the position on the fixed bracket 210 close to the fixed cross beam 230. In addition, the arc plate 241 is provided to determine whether the fixed bracket 210 has moved to the target angle, that is, the attitude angle change amount of the target hatch 500 can be determined according to the arc plate 241. This process can be considered as a rough adjustment; the measurement of the attitude angle change amount of the target hatch 500 by the angle sensor 430 is to measure the actual attitude angle change amount after adjustment. This process can be considered as being able to correct the angle of the rough adjustment, thereby improving the accuracy of hatch state simulation.

[0143] The distance measuring sensor 420 is configured to measure the position change amount of the target hatch 500. Since the position adjustment unit 300 is used to adjust the relative position change of the target hatch 500, and each relative position change may be different, the number of distance measuring sensors 420 needs to be matched with the position adjustment unit 300, and its position should be at the four corners of the target hatch 500.

[0144] Both the angle sensor 430 and the distance measuring sensor 420 are arranged on the sensor bracket 410. The sensor bracket 410 is of an L-shaped structure. One end of the sensor bracket 410 extends in a direction parallel to the support surface 110 and is connected to the fixed bracket 210, and the other end extends in another direction parallel to the support surface 110 and is provided with the angle sensor 430 or the distance measuring sensor 420; the setting of the sensor bracket 410 can improve the connection stability between the sensor and the fixed bracket 210. By arranging the sensor bracket 410 close to the lead screw adjustment assembly 330 and the angle adjustment assembly 250, and further arranging the angle sensor 430 and the distance measuring sensor 420 at positions close to the lead screw adjustment assembly 330 and the angle adjustment assembly 250, the sensitivity and accuracy of the sensor for measuring the attitude angle change and the position change can be improved.

[0145] In addition, the data receiving device 440 is connected to the ranging sensor 420 and the angle sensor 430 through a wire harness. In cooperation with the data receiving device 440, the change in the position of the target hatch 500 collected by the ranging sensor 420 and the change in the attitude angle of the target hatch 500 collected by the angle sensor 430 are received, which can improve the convenience of obtaining the parameters corresponding to the simulated state of the hatch.

[0146] Figure 6 It is the flow diagram corresponding to the hatch state simulation method provided by the embodiment of the present invention; as Figure 6 shown, a hatch state simulation method applied to an aircraft is applied to the hatch state simulation system for an aircraft described in any of the above embodiments. The method includes:

[0147] S1: Fix the target hatch 500 to the attitude adjustment unit 200;

[0148] The fixing the target hatch 500 to the attitude adjustment unit 200 includes:

[0149] Adjust the connecting member 220 and the fixing bracket 210 so that the sizes of the connecting member 220 and the fixing bracket 210 match the hatch size of the target hatch 500;

[0150] Connect the target hatch 500 to the fixing bracket 210 through the connecting member 220, and make the target hatch 500 arranged in parallel and spaced apart from the fixing bracket 210.

[0151] In a specific embodiment, since the hatch state simulation system has universality and good adaptability and can adapt to hatches of different sizes, different models and different aircraft, before installing the target hatch 500 on the fixing bracket 210, it is necessary to adjust the connecting member 220 and / or the fixing bracket 210 so that the sizes of the connecting member 220 and / or the fixing bracket 210 can match the target hatch 500. After adjusting the connecting member 220 and / or the fixing bracket 210, the target hatch 500 is arranged in parallel with the fixing bracket 210 at a certain interval and connected through the connecting member 220 to fix the target hatch 500 to the attitude adjustment unit 200.

[0152] S2: Adjust the attitude adjustment unit 200 according to the preset simulation parameters so that the target hatch 500 is fixed at the target angle;

[0153] The adjusting the attitude adjustment unit 200 according to the preset simulation parameters so that the target hatch 500 is fixed at the target angle includes:

[0154] Adjust the driving member 255 so that the fixed bracket 210 drives the target hatch 500 to rotate to the target angle under the drive of the gear integrated structure 254 and the rotating shaft 253;

[0155] And adjust the locking structure so that the target hatch 500 is fixed at the target angle.

[0156] In a specific embodiment, the preset simulation parameters may include the target angle and the target position. Adjust the driving member 255 so that the driving member 255 drives the rotating shaft 253 to move through the gear integrated structure 254. Further, the rotating shaft 253 drives the fixed bracket 210 to move, and the fixed bracket 210 drives the target hatch 500 to move synchronously, so as to adjust the target hatch 500 to the target angle and cooperate with the locking structure to fix the target hatch 500 at the target angle. Among them, it can be determined whether the target hatch 500 moves to the target angle through the angle scale line on the radian plate 241.

[0157] S3: Connect the position adjusting unit 300 and the measuring unit 400 to the attitude adjusting unit 200, and adjust the position adjusting unit 300 according to the preset simulation parameters so that the target hatch 500 moves to the target position;

[0158] The adjusting the position adjusting unit 300 according to the preset simulation parameters so that the target hatch 500 moves to the target position includes:

[0159] Disassemble the connecting member 220;

[0160] Adjust the position of the lead screw 331 so that the lead screw 331 presses the rigid adjusting block 310, and transmits the pressing force generated by the lead screw 331 to the target hatch 500 through the rigid adjusting block 310, so that the target hatch 500 moves to the target position.

[0161] In a specific embodiment, since the connecting member 220 can fixedly connect the target hatch 500 and the fixed bracket 210, the presence of the connecting member 220 will affect the relative position change of the target hatch 500. Therefore, before simulating the position change of the target hatch 500, it is necessary to disassemble the connecting member 220, and ensure that the target hatch 500 can be fixed at the target angle through the locking assembly 240.

[0162] Specifically, after removing the disassembly connecting member 220, adjust the position of the lead screw 331 so that the lead screw 331 generates an extrusion force by extruding the rigid adjustment block 310, and transmit the extrusion force to the target hatch 500 through the rigid adjustment block 310, so that the target hatch 500 moves to the target position. Among them, the determination of the target position can be set according to the specific hatch state simulation requirements, and the position of the position adjustment unit 300 on the fixed bracket 210 can be determined according to the specific hatch state simulation requirements.

[0163] S4: Based on the target angle, the target position, and the measurement unit 400, determine the attitude angle change amount and the position change amount corresponding to the target hatch 500.

[0164] The determining the attitude angle change amount and the position change amount corresponding to the target hatch 500 based on the target angle, the target position, and the measurement unit 400 includes:

[0165] Determine the attitude angle change amount through the angle sensor 430 and the target angle;

[0166] Determine the position change amount through the distance measuring sensor 420 and the target position;

[0167] Receive the attitude angle change amount and the position change amount through the data receiving device 440.

[0168] In a specific embodiment, according to the angle sensor 430, the attitude angle change amount of the target hatch 500 can be measured, according to the distance measuring sensor 420, the position change amount of the target hatch 500 can be measured, and since the data receiving device 440 is communicatively connected to the angle sensor 430 and the distance measuring sensor 420 through a wire harness, the data receiving device 440 can receive the attitude angle change amount and the position change amount, so as to simulate the state of the aircraft hatch in the air on the ground and improve the convenience of obtaining hatch state data.

[0169] As can be seen from the embodiments provided by the present invention described above, in the present invention, the hatch state simulation system includes a support platform, and a support member is placed on the support surface of the support platform. The attitude adjustment unit is fixedly placed on the support platform and is spaced from the support surface, providing sufficient operating space for the attitude adjustment unit to adjust the attitude angle change of the target hatch, thereby improving the flexibility of adjusting the attitude of the target hatch; by setting a position adjustment unit to measure the relative position change of the target hatch and setting an attitude adjustment unit to measure the attitude change of the target hatch, the state change of the target hatch in the air can be simulated on the ground, thereby improving the convenience of simulating and verifying the hatch state change, and reducing the cost and operation complexity; in addition, the measurement unit and the position adjustment unit are both connected to the attitude adjustment unit, so that the measurement unit can sensitively measure the attitude angle change and the position change, thereby improving the accuracy and reliability of measuring the state change of the target hatch.

[0170] It should be noted that: the above has described various embodiments of the present disclosure. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art corresponding to the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary skilled in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. A door state simulation system for an aircraft, characterized in that: The system comprises: A supporting platform having a supporting surface and a supporting member having one end fixed on the supporting surface; an attitude adjustment unit, used for fixing the target cabin door and adjusting the attitude angle change of the target cabin door, wherein the attitude adjustment unit is connected to the support member and is spaced apart relative to the support surface; A position adjustment unit, used for adjusting the position change of the target cabin door, the position adjustment unit is connected to the posture adjustment unit and is also connected to the target cabin door; A measuring unit is used to measure the attitude angle change and position change of the target door, and the measuring unit is connected to the attitude adjustment unit.

2. A door state simulation system for aircraft according to claim 1, characterized in that: The posture adjustment unit includes a fixed bracket, a connecting piece and an angle adjustment component; The connecting piece is used to connect the fixing bracket and the target cabin door; The fixing bracket is used to fix the target cabin door; the size of the fixing bracket matches the size of the target cabin door, and the target cabin door and the fixing bracket are arranged in parallel and spaced apart; The angle adjustment assembly is used to adjust the angle of the fixing bracket so that the fixing bracket drives the target cabin door to move to a target angle.

3. A door state simulation system for aircraft according to claim 2, characterized in that: The number of the connecting members is at least four; The connecting piece is a telescopic structure and is detachably connected to the fixing bracket.

4. The door state simulation system for aircraft according to claim 2, characterized in that: The angle adjustment component comprises: Support bearings, the number of which is at least two, each of which is connected to the fixed crossbeam; There are at least two rotating bearings, each of which is connected to the fixed bracket; A rotating shaft, both ends of which are respectively embedded in the supporting bearings, and the rotating shaft is embedded in the rotating bearings; A gear integrated structure, connected to the rotating shaft and the fixed beam respectively; A driving member is connected to the gear integrated structure and is used to drive the gear integrated structure so that the gear integrated structure drives the rotating shaft to move to adjust the attitude angle change of the fixed bracket.

5. The door state simulation system for aircraft according to claim 2, characterized in that: The posture adjustment unit also includes a locking assembly; The locking assembly is used to lock the fixing bracket; the locking assembly includes: There are at least two radian plates, and both ends of each radian plate are respectively connected to the fixing bracket; There are at least two clamping assemblies, and each of the clamping assemblies includes two clamping members; the two clamping members are disposed on both sides of the radian plate and cooperate with each other to lock the radian plate; There are at least two locking members, which are disposed on the clamping assembly, so that the clamping assembly can lock the radian plate by adjusting the locking members; The radian plate is used to cooperate with the clamping assembly to lock the fixing bracket.

6. The door state simulation system for aircraft according to claim 5, characterized in that: The arc plate is provided with evenly arranged angle scale lines for determining the attitude angle change of the fixed bracket.

7. The door state simulation system for aircraft according to claim 2, characterized in that: The posture adjustment unit also includes a fixed crossbeam; The fixed crossbeam is arranged on a side surface of the fixed bracket perpendicular to the supporting surface, and is used to connect the posture adjustment unit and the supporting member.

8. The door state simulation system for aircraft according to claim 1, characterized in that: The position adjustment unit includes a screw adjustment assembly and a rigidity adjustment block; The screw adjustment assembly comprises: A lead screw is arranged in a direction perpendicular to the support surface and / or in a direction parallel to the support surface; A lead screw integrated body, used for clamping the lead screws, so that one end of each lead screw is connected to the rigid adjustment block, and the other end of each lead screw is exposed; The lead screw is used to provide extrusion force and cooperate with the rigid adjustment block to adjust the position change of the target cabin door; The rigidity adjustment block is connected to the target cabin door and is used for transmitting the extrusion force to the target cabin door.

9. The door state simulation system for aircraft according to claim 8, characterized in that: The position adjustment unit also includes a structural connection plate; The structural connecting plate is used to connect the lead screw adjustment assembly and the fixing bracket.

10. The door state simulation system for aircraft according to claim 9, characterized in that: The number of the lead screw adjustment assembly, the rigid adjustment block and the structural connection plate is the same, and is at least four, and is arranged at the four corners of the fixed bracket.

11. The door state simulation system for aircraft according to claim 1, characterized in that: The measuring unit includes an angle sensor, a distance sensor and a sensor bracket; The sensor bracket is an L-shaped structure; one end of the sensor bracket extends in a direction parallel to the support surface and is connected to the fixed bracket; The other end of the sensor bracket extends in another direction parallel to the supporting surface and is provided with an angle sensor or a distance measuring sensor.

12. The door state simulation system for aircraft according to claim 11, characterized in that: There are multiple sensor brackets, and the sensor brackets are at least arranged at four corners of the fixed bracket and at positions of the fixed bracket close to the fixed beam.

13. The door state simulation system for aircraft according to claim 8, characterized in that: The measuring unit further comprises: The data receiving device is communicatively connected with the angle sensor and the distance measuring sensor, and is used for receiving the attitude angle change of the target door collected by the angle sensor and the position change of the target door collected by the distance measuring sensor.

14. A door state simulation method for aircraft, applied to the door state simulation system for aircraft as claimed in any one of claims 1 to 13, characterized in that: The method comprises: Fixing the target door to the attitude adjustment unit; adjusting the attitude adjustment unit according to preset simulation parameters so that the target door is fixed at a target angle; Connecting a position adjustment unit and a measurement unit to the attitude adjustment unit, and adjusting the position adjustment unit according to the preset simulation parameters so that the target door moves to a target position; Based on the target angle, the target position and the measuring unit, a change in attitude angle and a change in position corresponding to the target door are determined.

15. The door state simulation method for aircraft according to claim 14, characterized in that: The method of fixing the target cabin door to the attitude adjustment unit comprises: Adjusting the connecting piece and the fixing bracket so that the size of the connecting piece and the size of the fixing bracket match the door size of the target door; The target cabin door is connected to the fixing bracket through the connecting piece, and the target cabin door and the fixing bracket are arranged in parallel and spaced apart.

16. The door state simulation method for aircraft according to claim 14, characterized in that: The step of adjusting the attitude adjustment unit according to preset simulation parameters so that the target door is fixed at a target angle includes: Adjust the driving member so that the fixed bracket drives the target cabin door to rotate to the target angle driven by the gear integrated structure and the rotating shaft; And the locking structure is adjusted so that the target cabin door is fixed at the target angle.

17. The method for simulating the door state of an aircraft according to claim 14, characterized in that: The adjusting the position adjustment unit according to the preset simulation parameters so that the target door moves to the target position includes: Dismantle the connector; The position of the lead screw is adjusted so that the lead screw squeezes the rigidity adjustment block, and the squeezing force generated by the lead screw is transmitted to the target cabin door through the rigidity adjustment block, so that the target cabin door moves to the target position.

18. The door state simulation method for aircraft according to claim 14, characterized in that: The step of determining the attitude angle change and position change corresponding to the target door based on the target angle, the target position and the measuring unit includes: Determine the attitude angle change amount by using an angle sensor and the target angle; Determine the position change by using a distance measuring sensor and the target position; The attitude angle change and the position change are received by a data receiving device.

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