Automatic recognition method of kinematic pair in virtual assembly environment

In order to reduce the pretreatment workload of mechanism motion simulation effectively after finishing assembly simulation and enhance the automatic level of mechanism motion simulation, the automatic recognition method of kinematic pair oriented to motion simulation in virtual assembly environment was presented. The constraint degree of all constraints between two components (subassembly or part) was calculated by abstracting the assembly constraints information in virtual assembly environment, based on which kinematic pairs in the simulation mechanisms were mapped automatically so as to provide basic information for establishing mechanism information models during mechanism motion simulation. Combining with the prototype system Virtual Assembly Process Planning (VAPP), the infrastructure data modules, data structure of mechanism models, information transmission process and implementation steps for mechanisms motion simulation based on virtual assembly system were also proposed, the effectiveness of the method was validated by an example in the system.