维修部位导向的可视性分析方法

摘要

To by pass the limitation of the human eyes oriented analysis approach, a maintenance part ori?ented visibility analysis method for maintenance simulation is proposed in this paper by taking the coupling relations among the visibility, accessibility, and operation space into account. Firstly, the general work flow of the traditional human eyes oriented analysis technique is analyzed. Secondly, a new work flow that uses points on the maintained part as vertexes to generate visibility cones to help the visibility analysis is brought forward. The functional elements of the flow are further analyzed in detail. Finally, the function module based on the maintained part oriented visibility analysis is designed and implemented with Tcl/Tk and Jackscript programming languages in the Jack simulation software. Simulation examples indicate that the proposed method helps confirm the appropriate standing positions and body postures efficiently when inspecting and validating the maintained part's visibility. The method is helpful for improving the efficiency of analyzing and validating visibility index under complex environment .%[目的]针对维修仿真中以人眼为导向的分析方法所存在的不足,[方法]从可视性与可触及性、操作空间等的耦合关系出发,提出一种以维修部位为导向的可视性分析方法.首先,分析传统的以人眼为导向的可视性分析方法的一般流程;然后,在此基础上提出一种以维修部位为顶点生成可视锥的方式来辅助开展可视性分析工作的流程,并对其主要的功能要素进行深入剖析.在Jack仿真软件的基础上,采用Tcl/Tk及Jackscript语言,设计并实现基于维修部位导向的可视性分析功能模块.[结果]应用案例表明,所提出的方法有助于在检查、验证维修部位的可视性时,快速确定虚拟人合适的站位与身体姿态.[结论]该方法对于提升复杂环境下的可视性指标分析验证效率具有较大帮助.