基于ANSYS的直线系统振动控制方法研究

Research on Vibration Control Method of Straight Line System Based on ANSYS

为探究运动曲线参数变化对直线系统残余振动的影响,通过对直线系统在装配体状态下进行试验模态分析,实际测量其机械参数并代入有限元计算模型,利用轨迹规划方法设计4种运动曲线,并基于ANSYS Workbench有限元分析软件对计算模型在不同运动曲线下进行瞬态动力学仿真分析,对比其在不同运动曲线下的定位精度。仿真结果表明:通过控制运动曲线加速度变化梯度的连续性,能够有效抑制柔性结构残余弹性振动,减少直线系统的稳定时间,验证了轨迹规划抑振策略的有效性。

In order to explore the influence of the change of motion curve parameters on the residual vibration of the straight line system,through the experimental modal analysis of the straight line system in the state of the assembly,the mechanical parameters of the linear system are actually measured and substituted into the finite element calculation model,and four motion curves are designed by using the trajectory planning method.Based on the finite element analysis software of ANSYS Workbench,the transient dynamic simulation analysis of the calculation model under different motion curves is carried out,and the positioning accuracy under different motion curves is compared.The simulation results show that by controlling the continuity of the acceleration gradient of the motion curve,the residual elastic vibration of the flexible structure can be effectively suppressed,and the stabilization time of the straight line system can be reduced,which verifies the effectiveness of the trajectory planning vibration suppression strategy.