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Comprehensive analysis and optimization for the static/dynamic/thermal characteristics of head frame


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Comprehensive analysis and optimization for the static/dynamic/thermal characteristics of head frame
Wang Yulin1Liao Kai2Jin Na1Feng Hutian1
1.School of Mechanical Engineering,NUST,Nanjing 210094,China;2.School of Mechanical Engineering and Automation,Beijing Aeronautics and Astronautics University,Beijing 100191,China
head framesstatic and dynamic characteristicsthermal characteristicfinite element method
To improve the stiffness of the head frame and decrease the influence of its deformation and vibration on the machining precision,the static/dynamic/thermal simulation and comprehensive optimization of the head frame.Structural weaknesses is identified and improved based on the model analysis.The thermalmechanical coupling simulation of the head frame.The temperature field,total displacement and stress distribution of the head frame are obtained,and the comprehensive optimization solution is proposed.The firstorder natural frequency of the optimal head frame increases by 5.02%,the maximum deformation decreases by 80%,and the maximum stress decreases by 76.5%,while the mass decreases by 5.6%.The static and dynamic stiffness increases,and the thermal stress and strain are improved.This method also provides a reference for simulation and optimization of other key parts.


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Last Update: 2013-02-15