模式选择阀门可调机构运动仿真分析

The Kinematics Simulation and Analysis of Movement Mechanism for Mode Selector Valve

利用几何方法建立了基于曲柄滑块构型的模式选择阀门可调机构的滑块位移输入与阀门角度输出的关系,并对其进行了运动分析及精度分析。应用多体动力学仿真软件ADAMS建立了模式选择阀门可调机构的仿真模型,对其进行了刚体仿真,仿真结果与理论分析结果几乎一致,互相验证了数学模型与仿真模型的正确性。另外,当联动环为柔性时对其可调机构进行了柔性体仿真,分析了联动环在不同刚性下对各阀门输出同步性的影响,仿真结果表明,提高联动环的刚性能够提高各阀门输出的同步性。

Using the geometric method , it establishes the relationship between the input of displacement and the output of the angle for valve movement mechanism of Mode Selector Valve （MSV） based on slider-crank, realizes the kinematics analysis and accuracy analysis .With the help of software ADAMS , it builds the simulation model of movement mechanism of MSV , obtains the rigid simulation of its movement mechanism , the simulation results are almost the same as the results of theoretical analysis .This verifies the accuracy of the simulation and mathematical model .In addition , it presents flexible simulation of movement mechanism with flexible linkage ring , and analyzes the influence of the stiffness of linkage ring on the synchronization of output of valves .The results of simulation indicate that the improved stiffness of linkage ring can improve the synchronization of output of valves .