Journal of Computer Applications

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Layered solving method for virtual maintenance posture in narrow aircraft space

  

  • Received:2024-07-31 Revised:2024-10-08 Online:2024-11-19 Published:2024-11-19
  • Supported by:
    System Security Simulation Verification Technology of ' Cloud Box ' System

飞机狭小空间虚拟维修姿态分层求解方法

刘哲旭1,张澳冰2,樊智勇3   

  1. 1. 中国民航大学 电子信息与自动化学院
    2. 中国民航大学电子信息与自动化学院
    3. 中国民航大学
  • 通讯作者: 张澳冰
  • 基金资助:
    “云匣子”系统的体系安全仿真验证技术

Abstract: Maintainability virtual simulation is an important tool for aircraft structures and systems design, in which the rapid generation of appropriate virtual human maintenance postures is crucial to the efficiency and feasibility of maintainability analysis. Aiming at the problems of low efficiency and limited applicability of the current virtual human maintenance posture solving method, a virtual maintenance posture hierarchical solving method was proposed for the narrow space of the aircraft. The method took the waist as the demarcation point, decomposes the maintenance posture into two parts: upper body and lower body, and used the Elitist Nondominated Sorting Genetic Algorithm Ⅱ (NSGA-Ⅱ) to optimize and solve them separately to obtain the overall maintenance posture. First, the maintenance posture optimization criterion was constructed by comprehensively considering the space limitations and human body structure constraints. Second, the multi-objective optimization models of upper body and lower body postures were constructed based on the maintenance posture optimization criterion and analytical geometry and inverse kinematics principles, and the NSGA-II algorithm was applied to solve them sequentially. Through the cases of the disassembly of the aircraft cockpit Air Data Module ( ADM ) and pushing of the cargo in the cargo hold, it is verified that the method can efficiently generate the virtual maintenance posture for the narrow space of the aircraft, and has good applicability and feasibility.

Key words: maintainability virtual simulation, virtual maintenance posture, narrow aircraft space, posture optimization criteria, multi-objective optimization

摘要: 维修性虚拟仿真是飞机结构及系统设计的重要工具,在其中快速生成合适的虚拟人维修姿态对维修性分析的效率和可行性至关重要。针对目前虚拟人维修姿态求解方法效率较低且适用性有限的问题,提出了一种针对飞机狭小空间的虚拟维修姿态分层求解方法。该方法以腰部为分界点,将维修姿态分解为上身、下身两部分,利用带精英策略的非支配排序遗传算法(Elitist Nondominated Sorting Genetic Algorithm Ⅱ, NSGA-Ⅱ)分别进行优化求解来获取整体维修姿态。首先,综合考虑空间限制和人体结构约束,构建维修姿态优化准则。其次,依据维修姿态优化准则,并通过解析几何和逆向运动学原理,构建上身和下身姿态的多目标优化模型,并运用NSGA-Ⅱ算法依次进行求解。通过飞机驾驶舱大气数据模块(Air Data Module, ADM)拆卸和货舱内货物推行案例,验证了该方法能够针对飞机狭小空间高效生成虚拟维修姿态,具有良好的适用性和可行性。

关键词: 维修性虚拟仿真, 虚拟维修姿态, 飞机狭小空间, 姿态优化准则, 多目标优化

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