2008•Journal of North China Institute of Aerospace EngineeringRequires access

The Modal Analysis of a 3-HSS Kind of PKM Based on FEM

Yan Zhuang

Abstract

Modal analysis for parallel machine tool is very important.Based on ANSYS,according to a 3-HSS kind of parallel machine tool,the modal analysis is carried out in this paper.Whereafter,the lower natural frequency,corresponding mode shape are obtained.By means of animation,six-order modal vibration rule has been analysised.It can provide theoretical basis for structure design and dynamic analysis and display the weak link of the machine.

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Key concepts: Modal analysis, Modal, Finite element method, Modal analysis using FEM, Vibration, Natural frequency, Structural engineering, Animation