平面六杆机构优化设计与运动仿真

以平面六杆机构中的滑块在工作行程时的速度波动最小为追求目标,以机构存在曲柄及良好的传力特性为约束条件,建立优化设计数学模型,并应用约束变尺度优化算法进行优化设计计算,获得机构的尺寸参数。在SolidWorks软件中建立机构的装配体模型,并运用COSMOSMotion 插件进行运动仿真,输出机构运动动画视频、图线等运动信息,为平面连杆机构的优化设计提供了一种可视化途径,以此检验或判断机构优化设计数学模型、程序设计及计算结果的正确性和合理性,也为其它机构的仿真设计提供了借鉴。

Optimization Design of Planar Six-bar Linkage and Motion Simulation

Taking that the slide block in planar six-bar linkage is at the minimum rate fluctuation in working stroke for the pursuit of goals, and taking the existence of the crank and good transmission property for constraint conditions, a mathematical model of optimal design is set up and optimization design calculation is done by the application of the constrained variable metric optimization algorithm to obtain the mechanism size parameters. In Solid-Works software the three-dimensional model of assembly for the mechanism is built, and by using COSMOS-Motion plug-ins the motion simulation is done to put out the kinematic animation video, lines and other sports information, which provide a visual way for the optimal design of planar linkage. Simultaneously the above can be used to test or to determine the mathematical model of the mechanism optimum design, the correctness and rationality of the program design and the calculation results, and also provide a reference for the simulation design of other mechanisms.