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| Study of dynamic characteristics of the linear motion guide |
| Li Lei1, 2, ZHANG Jian-run1 Liu Hong-wei2 |
| 1.Southeast University, Nanjing 211189, China2.Jiangsu University of Science and Technology, Zhenjiang 212000, China |
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Abstract As a key component, modeling of linear motion guide (LMG) is important to the dynamic analysis of high speed and precision computer numerical control (CNC). The dynamic function of the LMG was founded based on modal theory and Lagrange equation, and the natural frequencies were calculated by the soft of MATLAB, then the result was proved by dynamic experiment. At the same time, relationship between preload and exciting force to the nonlinear dynamic characteristic of LMG was analyzed, which was the foundation of analyzing the dynamic characteristic and optimization of the whole machine tool.
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Received: 20 July 2011
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2012, Vol. 31 
