基于Jack平台的虚拟设备维修拆卸序列规划

摘要

Virtual disassembly as the burgeoning means of maintenance technology, existing deficiencies in maintenance dis-assembly process planning. To handle this problem, this paper introduces interpretative structural model on the basis of Petri-net, and constructs Virtual Disassembly Interpretative Structural Model Petri-net, which is constructed to realize the subsys-tem division and hierarchical division of complex equipment components. Taking the ergonomic factors as the basic constraints of the disassembly process, this paper realizes the definition, evaluation and secondary development for the ergo-nomics indexes with the platform of Jack, which improved the description of maintenance disassembly process; combined with genetic algorithm,efficiently it achieves the virtual maintenance disassembly sequence intelligently planning for a certain type of gearbox.%虚拟维修作为新兴的维修技术手段,在维修拆卸过程规划方面存在不足.为解决复杂装备的拆卸规划问题,在Petri网的基础上引入解释结构模型,构建了十元组的解释结构Petri网模型,实现对装备零部件的子系统划分和层级划分;将人体工效因素纳入拆卸过程的约束条件,并利用Jack平台对人体工效指标进行定义、评价和二次开发,完善对维修拆卸过程的描述;结合遗传算法,针对某型变速箱进行了实例分析,验证了模型在虚拟拆卸序列规划的良好效果.