Experimental Identification Approach of Dynamic Parameters of Precise Horizontal Machining Centre Based on Component-System

Abstract:

This paper integrates experiment modal analysis and the analytical modal analysis to study on the vibration phenomena occurring occasionally at the different components of a precise horizontal machining centre. The paper is focused on extracting the mode shape of the major components of the machine in order to ensure resonance phenomena as a cause of vibration. At first the main natural frequencies with the corresponding modes of vibration of the machine structure are obtained by the experiment modal analysis. Then the dynamic behavior of the machine components is simulated using a finite element simulation model. The comparison of the results based on finite element calculation with their experimental counterparts shows the reasonableness. The model is evaluated and corrected with experimental results by modal testing of the machine components.

• Periodical: Key Engineering Materials (Volumes 467-469)
• Pages: 1686-1690
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.467-469.1686
• Online since: February 2011
• Authors: Zhifeng Liu, Zhong Hua Chu, Qiang Cheng, Guang Bo Liu, Dong Sheng Xuan
• Keywords: Component, Experiment Modal Analysis (EMA), Finite Element (FE) Simulation, Vibration

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