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针对虚拟样机运动仿真中存在的调用平面连杆机构运动分析求解器次数问题,阐明了机构运动独立运动链数目与平面连杆机构运动分析求解器调用次数的关系,以及运动独立运动链与机构基本环路的关系,给出了机构运动独立运动链的定义和判别方法,以及机构基本环路的原理和方法,制定了识别机构运动独立运动链的实现步骤,并成功应用于内燃机和压力机虚拟样机的运动仿真。
Aiming at the problem of solving the motion analysis solver of plane link mechanism in virtual prototype motion simulation, the relationship between the number of independent kinematic chains of mechanism kinematics and the call times of motion analysis solvers of plane link mechanism is expounded, and the relationship between kinematic independent kinematic chain and mechanism The definition of the kinematic chain of independent motion of mechanism, the method of distinguishing it, and the principle and method of the fundamental loop of the mechanism are given. The steps of realizing the kinematic independent kinematic chain of the mechanism are formulated and successfully applied in the virtual simulation of the internal combustion engine and the press Prototype motion simulation.