关键词: 虚拟维修, 知识管理, 人体模型驱动, 维修资源配置, 维修流程管理

Abstract: To address the inefficiency of human model animation,the difficulty of maintenance resources optimal allocation and the incapability on concurrent optimization of maintenance processes,a knowledge-based virtual aviation maintenance technology was studied.The technology consisted primarily of knowledge-based human model animation,maintenance resource management and maintenance process management.Ontology-based knowledge models were constructed for virtual aviation maintenance.An interaction object was sensed and recognized with 3D model matching;hand interaction postures were pushed to animate virtual hands according to the object.With tool-fastener matching rules and a priority evaluation model for tool allocation,virtual maintenance tools were pushed to assemble or disassemble a selected fastener.Based on semantic similarity,a maintenance process model was retrieved and reused;maintenance steps in the model were indicated and modified during the simulation.The technology was illustrated with applications in the experiment of grasping maintenance tools and some helicopter maintenance simulations.

Key words: virtual maintenance, knowledge management, human model animation, maintenance resource allocation, maintenance process management