Airplane covering cap accessibility verification method and device based on flexible recombination simulation

Abstract

The invention belongs to the technical field of aircraft design, and particularly relates to an aircraft covering cap accessibility verification method and device based on flexible recombination simulation, and the method comprises the steps: S1, obtaining a to-be-verified digital prototype lightweight model; s2, a covering cap model used for being installed on the digital prototype lightweight model is selected; s3, the digital prototype lightweight model is controlled to form an outer surface matched with the covering cap model; s4, a covering cap entity consistent with the covering cap model is selected, and the covering cap entity is moved to a set position so that the covering cap entity can be exactly located on the outer surface of the covering cap model on the AR equipment display screen; s5, mapping the dismounting operation of the maintenance personnel on the covering cap entity to the AR equipment display screen; and S6, evaluating the accessibility of the maintenance personnel to the covering cap. According to the invention, the perception of operators on the space information of the covering cap is improved, and the reachability verification efficiency of the covering cap is improved.

Description

Technical Field

[0001] The present application belongs to the field of aircraft design technology, and in particular relates to a method and device for verifying aircraft cover accessibility based on flexible reorganization simulation. Background Art

[0002] Aircraft have numerous maintenance access panels to facilitate installation and disassembly of various aircraft systems and equipment. Existing access panels often utilize a rigid, one-to-one assembly model. These panels are bulky, require custom components, and lack reconfigurability, making them complex to design and manufacture.

[0003] Nowadays, as the complexity and difficulty of the design of newly developed aircraft equipment continue to increase, the complexity and precision requirements of aircraft assembly work continue to increase. Flexible assembly has become an important part of aircraft digital assembly technology. Flexible reconfigurable maintenance covers simplify the diverse and complex maintenance channel forms in the process of concurrent maintainability design.

[0004] On the other hand, current aircraft simulation analysis and verification still relies on graphic information, data information, text information, etc., which requires a high cost to master. The existing augmented reality technology (hereinafter referred to as AR technology) is a technology that superimposes digital images on real images in real time. It can enhance users' perception of product and environmental status, enable seamless integration with the digital world, and enable the appropriate expression of flexible assembly flaps. It is an important tool for achieving accessibility verification of flexible reconstructed simulation flaps.

[0005] Regarding the current status of aircraft cover accessibility verification work:

[0006] 1. The new aircraft cover is large in size, complex in shape, has many parts, and is not reconfigurable, which increases the difficulty of accessibility verification;

[0007] 2. Aircraft flaps are rigidly assembled one-to-one, requiring high precision. This makes it difficult for maintenance personnel to disassemble and assemble the flaps, making simulation training complex and costly.

[0008] 3. The overall aircraft development cycle is short, and the requirements for ergonomic design verification are high. It is necessary to simplify assembly tasks, improve the efficiency of cover design verification iteration, and achieve more intuitive and convenient simulated maintenance operations. Summary of the Invention

[0009] The present application provides a method and device for verifying the accessibility of aircraft covers based on flexible reorganization simulation. On the basis of flexible assembly of maintenance covers, it combines augmented reality technology to express maintainability verification in the most appropriate way, so that the verification process is organically integrated with the real maintenance scenario.

[0010] In a first aspect, the present application provides a method for verifying aircraft flap accessibility based on flexible reconfiguration simulation, which mainly includes:

[0011] Step S1: obtaining a lightweight model of a digital prototype to be verified and a fastener assembly model for disassembling and assembling the cover;

[0012] Step S2: selecting a flap model for installation on the lightweight model of the digital prototype;

[0013] Step S3: controlling the lightweight model of the digital prototype to form an outer surface adapted to the mouth cover model, and displaying the outer surface on the display screen of the AR device;

[0014] Step S4: selecting a flap entity that is consistent with the flap model, and moving the flap entity to a set position so that the flap entity is exactly located on the outer surface of the flap model on the display screen of the AR device;

[0015] a disassembly and assembly control module, configured to display on the AR device display screen the disassembly and assembly of the flap model onto the digital prototype lightweight model by the fastener assembly model according to the disassembly and assembly operation of the flap entity by the maintenance personnel;

[0016] The accessibility assessment module is used to evaluate the accessibility of the cover to maintenance personnel based on the interaction scenario between maintenance personnel and the lightweight model of the digital prototype.

[0017] Preferably, in step S4, the mouth cover component entity is generated by 3D printing.

[0018] Preferably, in step S4, the flap body is controlled to move to a set position by a guide rail and a robotic arm.

[0019] Preferably, step S5 further comprises:

[0020] The maintenance action of the maintenance personnel is collected, and when the maintenance action touches the entity boundary mapped to the lightweight model of the digital prototype, force feedback is provided to the maintenance personnel.

[0021] The second aspect of the present application provides an aircraft cover accessibility verification device based on flexible reconfiguration simulation, which mainly includes:

[0022] A model acquisition module is used to obtain a lightweight model of a digital prototype to be verified and a fastener assembly model for disassembling and assembling the cover;

[0023] A flap selection module, used for selecting a flap model to be installed on the lightweight model of the digital prototype;

[0024] An AR processing module is used to control the lightweight model of the digital prototype to form an outer surface that is adapted to the mouth cover model and display it on the display screen of the AR device;

[0025] a virtual-real combination module, configured to select a flap entity consistent with the flap model and move the flap entity to a set position so that the flap entity is exactly located on the outer surface of the flap model on the display screen of the AR device;

[0026] a disassembly and assembly control module, configured to display on the AR device display screen the disassembly and assembly of the flap model onto the digital prototype lightweight model by the fastener assembly model according to the disassembly and assembly operation of the flap entity by the maintenance personnel;

[0027] The accessibility assessment module is used to evaluate the accessibility of the cover to maintenance personnel based on the interaction scenario between maintenance personnel and the lightweight model of the digital prototype.

[0028] Preferably, in the virtual-real combination module, the mouth cover component entity is generated by 3D printing.

[0029] Preferably, in the virtual-real combination module, the flap entity is controlled to move to a set position by a guide rail and a robotic arm.

[0030] Preferably, the reachability verification module further includes:

[0031] Preferably, the disassembly control module further comprises:

[0032] The force feedback control module is used to collect the maintenance actions of the maintenance personnel and provide force feedback to the maintenance personnel when the maintenance actions touch the entity boundary mapped to the lightweight model of the digital prototype.

[0033] This application improves the operator's perception of the flap's spatial information and improves the efficiency of flap accessibility verification. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a flow chart of a preferred embodiment of the aircraft cover accessibility verification method based on flexible reconfiguration simulation of the present application. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the implementation of this application clearer, the technical solutions in the implementation of this application will be described in more detail below in conjunction with the drawings in the implementation of this application. In the drawings, the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions. The described implementation is a part of the implementation of this application, not all of the implementations. The implementation described below with reference to the drawings is exemplary and is intended to be used to explain this application, and should not be understood as a limitation on this application. Based on the implementation in this application, all other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The implementation of this application is described in detail below in conjunction with the drawings.

[0036] The first aspect of the present application provides a method for verifying the accessibility of an aircraft cover based on flexible reconfiguration simulation, such as Figure 1 As shown, it mainly includes:

[0037] Step S1: obtaining a lightweight model of a digital prototype to be verified and a fastener assembly model for disassembling and assembling the cover;

[0038] Step S2: selecting a flap model for installation on the lightweight model of the digital prototype;

[0039] Step S3: controlling the lightweight model of the digital prototype to form an outer surface adapted to the mouth cover model, and displaying the outer surface on the display screen of the AR device;

[0040] Step S4: selecting a flap entity that is consistent with the flap model, and moving the flap entity to a set position so that the flap entity is exactly located on the outer surface of the flap model on the display screen of the AR device;

[0041] Step S5: displaying on the AR device screen that the flap model is disassembled and assembled onto the digital prototype lightweight model by the fastener assembly model according to the maintenance personnel's disassembly and assembly operation of the flap entity;

[0042] Step S6: Based on the interaction scenario between the maintenance personnel and the lightweight model of the digital prototype, the accessibility of the cover to the maintenance personnel is evaluated.

[0043] The purpose of this application is to provide a physical maintenance channel for the simulation verification system, verifying whether the maintenance channel operation space is open, the accessibility of the equipment layout, and the interference between components and structures. To this end, this application uses AR technology to establish an enhanced information model to strengthen the connection between virtual and real objects. The enhanced spatial relationships and constraints obtained provide maintainability designers with some information that is difficult to perceive or impossible to obtain in real environments or purely virtual environments. This can enhance the maintenance personnel's immersion needs and their understanding of the characteristics of the maintenance objects, and solve the problem of maintenance personnel's errors in perception, understanding, and judgment of scene information.

[0044] First, in step S1, the present application constructs multiple models, including a digital prototype lightweight model and a fastener assembly model for disassembling and assembling the cover, wherein the digital prototype lightweight model includes relevant components of the aircraft cover, and in the digital prototype lightweight model, the position and shape of the aircraft cover are variable. The system has the ability to change the outer surface of the cover position in the digital prototype lightweight model into a visual enhanced display area according to the physical position and cover type of the maintenance cover entity in the real world. In addition, step S1 also includes obtaining a maintenance tool model, which can be used to map the virtual and real positions of the maintenance tool entity. That is, the maintenance tool model is used to verify the maintenance channel space and accessibility. When the maintenance personnel operate the maintenance tool entity, the position of the maintenance tool entity is collected based on the data acquisition device so as to be virtually mapped to the display device, that is, mapped to the AR device display mentioned in step S3. Typical maintenance tool models include small ladders, conventional mechanical tools (such as wrenches, pliers, and tapers), conventional electrical tools, hammers, etc., which can be adaptively changed and supplemented according to the needs of the maintenance tools. Furthermore, step S1 also involves obtaining a maintenance interface simulation model. This model uses the maintenance control panel interfaces of various onboard systems as design inputs, primarily including interfaces for loading and unloading, cleaning, maintenance, and lubrication, and human-machine interaction. This model, along with the fastener assembly model, is used to verify hand / tool operating space and accessibility.

[0045] Afterwards, in step S2, the flap model is obtained. This application is used to verify the accessibility of different flexible reconfigurable flaps. Therefore, in step S2, the flap models to be verified need to be selected one by one according to the verification requirements. For each selected flap model, in step S3, the digital prototype model is controlled to provide an outer surface consistent with the selected flap model so that the flap model can be disassembled and assembled at that position. At the same time, in step S4, a flap component entity consistent with the flap model to be verified is formed so that maintenance personnel can operate the flap component entity. In step S5, the maintenance personnel feeds back the operation process of the flap component entity to the AR device display screen, thereby verifying the accessibility of the flap.

[0046] In step S3, the AR device display is part of a head-mounted AR (HMD) system, a display device that allows users to experience immersion. A video see-through helmet display (HMD) captures real-time images through one or more cameras on the helmet. These images are integrated with two-dimensional objects generated by the image processing module and the virtual rendering module, and ultimately displayed on the HMD. This provides an interactive virtual-real maintenance scene and equipment. The overlay of virtual and real elements satisfies the design verification personnel's need for immersion and their understanding of the maintenance object's spatial and external features. This allows maintainability designers to comprehensively, intuitively, and accurately grasp the integrated information, preventing any errors in information perception, comprehension, and judgment.

[0047] In step S4, the flap entity is moved so that it is exactly located on the outer surface of the flap model on the AR device display. This accurately maps the digital prototype lightweight model to reality. Subsequent maintenance actions performed by maintenance personnel can be detected to determine whether they will contact the virtual aircraft, thereby enabling accessibility assessment of flap maintenance. In step S5, the maintenance personnel's maintenance of the flap is synchronously mapped to the AR device. In step S6, a maintenance simulation model can be constructed. In addition to the digital prototype lightweight model displayed on the AR device, this simulation model also uses a virtual human to demonstrate the maintenance personnel's actions. By observing the maintenance personnel's maintenance process, the accessibility of the aircraft flap can be evaluated.

[0048] During verification, designers selected models of different types and specifications of maintenance covers based on the actual applicability requirements, and optimized their details to make the maintenance operation process through the maintenance channel and the ergonomics verification and evaluation intuitive and visual. The accessibility of the cover can be verified and the ergonomics evaluation can be directly performed on the mixed reality device.

[0049] In some optional embodiments, in step S4, the mouth cover component entity is generated by 3D printing.

[0050] In some optional embodiments, in step S4, the flap body is controlled to move to a set position by a guide rail and a robotic arm.

[0051] The flexible reconfigurable cover provided in this application refers to a cover that can be scaled by means of guide rails and disassembly modules to achieve rapid replacement of multiple specifications. Since the use and maintenance activities such as inspection, repair, and replacement of equipment or parts on aircraft have different standards and design requirements for the shape, opening size, and opening method of the maintenance cover, the design scheme of the maintenance cover model based on mixed reality should be able to simultaneously meet the flexible conversion function of the above-mentioned different shape types, sizes, and functional categories, provide a flexible reconfigurable maintenance cover model, and provide a physical maintenance channel for simulation verification. The robotic arm used in the maintenance cover design based on mixed reality in this application is to adjust the position of the cover and has the function of changing its position within a specified range. In addition, it can be precisely positioned through simple settings or code programming, and can be stretched arbitrarily with the operator's movements.

[0052] In some optional implementations, step S5 further includes:

[0053] The maintenance action of the maintenance personnel is collected, and when the maintenance action touches the entity boundary mapped to the lightweight model of the digital prototype, force feedback is provided to the maintenance personnel.

[0054] In this embodiment, when the maintenance personnel are performing maintenance, since the physical structure only includes the flap and does not include the physical structure of the aircraft, the maintenance personnel will not actually be affected by the obstruction of the aircraft boundary (the outer wall of the aircraft). To this end, the present application displays a virtual aircraft structure (a digital prototype lightweight model) on the AR device display screen. In step S4, the flap entity is located exactly on the outer surface of the flap model on the AR device display screen. At this point, the aircraft boundary mapped by the digital prototype lightweight model exists in reality. The maintenance personnel wear various force feedback devices, such as gloves, elbow sleeves and other structures. When the maintenance personnel perform maintenance actions, after a part of the body touches the aircraft boundary, force feedback is given to the maintenance personnel, so that the maintenance personnel can understand where the body is blocked by the aircraft and then retract the action.

[0055] In this embodiment, the system includes a small interactive device for manipulating force simulation, and studies the operating principle and structural design of the force feedback device. The virtual force generated by virtual actions in the virtual environment is realistically converted to a control interface through a force-generating device such as a driver. This interface interacts with the maintenance access cover assembly, a typical simulated maintenance tool assembly, a typical simulated fastener, and a support interface assembly to recreate the human force perception in the virtual environment. This system then simulates the force applied by the maintenance personnel during the simulated action, providing a tracking function that allows for quantitative setting and feedback force collection for push-pull forces, twisting forces, and other factors, verifying the effects of manipulating force on human fatigue.

[0056] This application uses AR technology to combine the existing virtual maintenance environment assembly scene with the physical model of the maintenance cover. The model and virtual information are superimposed on the three-dimensional scene displayed by augmented reality. Part specifications, inventory information, real-time data, images and videos, as well as operation force feedback, are virtually interacted with, which can give maintainability designers a stronger sense of reality immersion; the centralized maintenance assembly information greatly reduces the workload of three-dimensional modeling and the requirements for the visual-spatial ability of staff, greatly shortens the time for cover accessibility verification, simplifies assembly tasks, and improves the efficiency of cover design verification iteration.

[0057] A second aspect of the present application provides an aircraft flap accessibility verification device based on flexible reconfiguration simulation corresponding to the above method, which mainly includes:

[0058] A model acquisition module is used to obtain a lightweight model of a digital prototype to be verified and a fastener assembly model for disassembling and assembling the cover;

[0059] A flap selection module, used for selecting a flap model to be installed on the lightweight model of the digital prototype;

[0060] An AR processing module is used to control the lightweight model of the digital prototype to form an outer surface that is adapted to the mouth cover model and display it on the display screen of the AR device;

[0061] a virtual-real combination module, configured to select a flap entity consistent with the flap model and move the flap entity to a set position so that the flap entity is exactly located on the outer surface of the flap model on the display screen of the AR device;

[0062] a disassembly and assembly control module, configured to display on the AR device display screen the disassembly and assembly of the flap model onto the digital prototype lightweight model by the fastener assembly model according to the disassembly and assembly operation of the flap entity by the maintenance personnel;

[0063] The accessibility assessment module is used to evaluate the accessibility of the cover to maintenance personnel based on the interaction scenario between maintenance personnel and the lightweight model of the digital prototype.

[0064] In some optional embodiments, in the virtual-real combination module, the mouth cover component entity is generated by 3D printing.

[0065] In some optional embodiments, in the virtual-real combination module, the flap entity is controlled to move to a set position by a guide rail and a robotic arm.

[0066] In some optional embodiments, the assembly and disassembly control module further includes:

[0067] The force feedback control module is used to collect the maintenance actions of the maintenance personnel and provide force feedback to the maintenance personnel when the maintenance actions touch the entity boundary mapped to the lightweight model of the digital prototype.

[0068] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A method for verifying aircraft flap accessibility based on flexible reconfiguration simulation, characterized in that: include: Step S1: obtaining a lightweight model of a digital prototype to be verified and a fastener assembly model for disassembling and assembling the cover; Step S2: selecting a flap model for installation on the lightweight model of the digital prototype; Step S3: controlling the lightweight model of the digital prototype to form an outer surface adapted to the mouth cover model, and displaying the outer surface on the display screen of the AR device; Step S4: selecting a flap entity that is consistent with the flap model, and moving the flap entity to a set position so that the flap entity is exactly located on the outer surface of the flap model on the display screen of the AR device; Step S5: displaying on the AR device screen that the flap model is disassembled and assembled onto the digital prototype lightweight model by the fastener assembly model according to the maintenance personnel's disassembly and assembly operation of the flap entity; Step S6: Based on the interaction scenario between the maintenance personnel and the lightweight model of the digital prototype, the accessibility of the cover to the maintenance personnel is evaluated.

2. The aircraft cover accessibility verification method based on flexible reconfiguration simulation according to claim 1, characterized in that: In step S1, the physical structure of the flap component is generated by 3D printing.

3. The aircraft cover accessibility verification method based on flexible reconfiguration simulation according to claim 1, characterized in that: In step S4, the flap is physically moved to a set position by controlling the guide rail and the robotic arm.

4. The aircraft cover accessibility verification method based on flexible reconfiguration simulation according to claim 1, characterized in that: Step S5 further comprises: The maintenance action of the maintenance personnel is collected, and when the maintenance action touches the entity boundary mapped to the lightweight model of the digital prototype, force feedback is provided to the maintenance personnel.

5. An aircraft cover accessibility verification device based on flexible reorganization simulation, characterized in that: include: A model acquisition module is used to obtain a lightweight model of a digital prototype to be verified and a fastener assembly model for disassembling and assembling the cover; A flap selection module, used for selecting a flap model to be installed on the lightweight model of the digital prototype; An AR processing module is used to control the lightweight model of the digital prototype to form an outer surface that is adapted to the mouth cover model and display it on the display screen of the AR device; a virtual-real combination module, configured to select a flap entity consistent with the flap model and move the flap entity to a set position so that the flap entity is exactly located on the outer surface of the flap model on the display screen of the AR device; a disassembly and assembly control module, configured to display on the AR device display screen the disassembly and assembly of the flap model onto the digital prototype lightweight model by the fastener assembly model according to the disassembly and assembly operation of the flap entity by the maintenance personnel; The accessibility assessment module is used to evaluate the accessibility of the cover to maintenance personnel based on the interaction scenario between maintenance personnel and the lightweight model of the digital prototype.

6. The aircraft cover accessibility verification device based on flexible reconfiguration simulation according to claim 5, characterized in that: In the virtual-real combination module, the mouth cover component entity is generated by 3D printing.

7. The aircraft flap accessibility verification device based on flexible reconfiguration simulation according to claim 5, characterized in that: In the virtual-real combination module, the flap entity is controlled to move to a set position by a guide rail and a robotic arm.

8. The aircraft flap accessibility verification device based on flexible reconfiguration simulation according to claim 5, characterized in that: The disassembly and assembly control module further comprises: The force feedback control module is used to collect the maintenance actions of the maintenance personnel and provide force feedback to the maintenance personnel when the maintenance actions touch the entity boundary mapped to the lightweight model of the digital prototype.

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