In order to improve the overall performance of the five axis linkage machine tool,a transient dynamic analysis method for repeated collision of the main motion components of a five axis linkage machine tool was proposed to analyze the dynamic characteristics of the main motion components.The kinematics model of five axis linkage machine tool was established,and its kinematics characteris-tics were analyzed.According to the kinematics characteristics of the machine tool,the repeated collision system of the flexible rod and the dynamic equations of the collision process were established.Finally,based on the wave theory of St.VENANT rods,the transient dy-namic characteristics of flexible rods during multiple collisions and separation processes were analyzed.The experimental results show that comparing with other methods,the proposed method can accurately obtain the deformation,displacement,and impact force changes of the flexible rod,and has high analytical accuracy.
关键词
五轴联动机床/柔性杆/运动学方程/重复碰撞/瞬态动力学特性
Key words
five axis linkage machine tool/flexible rod/kinematics equation/repeated collision/transient dynamic characteristics
维普
万方数据