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《China Mechanical Engineering》 2009-24
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Theory and Method of Key Stiffness Identification on a Machine Tool Based on Analyzing the Sensitive Distortion

Huang Qiang1 Zhang Genbao21.Chongqing University of Technology,Chongqing,4000502.Chongqing University,Chongqing,400044  
To distribute the stiffness on a machine tool reasonably or find out the optimization target of component stiffness,a way was proposed to identify the distortion sensitivity of the machine component during design.The first work was to build an error model of target machine tool by combining the multi-body system theory and homogeneous coordinate transform.Then,it was supposed that each component produced respectively the unit distortion of six freedoms,and their action value and direction on final execution component were calculated with aforesaid error model.To compare these results,the influence degree of each component stiffness on the final export precision will be realized.
【Fund】: 国家自然科学基金资助重点项目(50835008);; 重庆市自然科学基金资助项目(CSTC 2009BB3234)
【CateGory Index】: TG502.13
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