Analytical Method in Machine-Tools Vibrations : Method for Analogue Computer

Abstract

This paper describes the analyzing method in a complicated vibration system as in the machine tools structure, which makes possible the improvements and compensations of the dynamic characteristics of these machines in the predesign stage. This method utilizes the signal flow graphs reducing to the direct simulation by the analogue computers, so that the physical meaning of the vibratory phenomena occurring in real systems can be easily recognized and the nonlinear feedback oscillations as observed when the machine tools are cutting the metal, can be handled successfully. In this paper, how to construct the signal flow graphs of the machine element considered as a distributed parameter system, is described by use of typical examples. After that, the results of the computation and experiments are compared to indicate the precision of this method.