공작기계 구조물의 정ㆍ동강성 평가방법에 관한 연구

A Comparative Study on the Static and Dynamic Stiffness Evaluation Methods of Machine Tool Structure

In other to evaluate the static and dynamic stiffness of machine tool structure, the accuracy and error from experimental methods are studied in this paper. The F.E.M., impulse tests and exciter tests are performed for the general simple structure whose exact solution can be obtained. So that the parameter and dynamic compliance can be got. From the result, the variation of natural frequency can be verified from the static preload. Further more the relationship of identify and difference for compliance and direction is presented in the exciting direction and measurement direction.