| 基于有限元的铝合金预拉伸板振动时效仿真分析 |
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| 引用本文： | 赵晓慈,张以都,张洪伟,吴琼.基于有限元的铝合金预拉伸板振动时效仿真分析[J].辽宁工程技术大学学报(自然科学版),2008,27(6). |
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| 作者姓名： | 赵晓慈 张以都 张洪伟 吴琼 |
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| 作者单位： | 北京航空航天大学,机械工程及自动化学院,北京100083 |
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| 基金项目： | 总装十一五项目资助
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| 摘 要： | 为消除铝合金预拉伸板中的残余应力,采用弹塑性有限元法对振动时效消除残余应力进行数值模拟.研究振动时效工艺参数对残余应力消除的影响,结果表明只有铝合金预拉伸板产生一定的塑性变形振动时效才能有效消除残余应力;对于共振时效,激振产生的较大振幅能更有效消除残余应力;激振时间对激振效果影响不大.
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| 关 键 词： | 残余应力 振动时效 弹塑性 仿真 |
Simulation for vibratory stress relief in aeronautics aluminum alloy pre-stretching board based on FEM |
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| ZHAO Xiaoci,ZHAND Yidu,ZHANG Hongwei,WU Qiong.Simulation for vibratory stress relief in aeronautics aluminum alloy pre-stretching board based on FEM[J].Journal of Liaoning Technical University (Natural Science Edition),2008,27(6). |
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| Authors: | ZHAO Xiaoci ZHAND Yidu ZHANG Hongwei WU Qiong |
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| Institution: | ZHAO Xiaoci ZH, Yidu ZHANG Hongwei WU Qiong(School of Mechanical Engineering , Automation,Beijing University of Aeronautics , Astronautics,Beijing 100083,China) |
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| Abstract: | To eliminate the residual stress of aluminum alloy pre-stretching board,an elastic-plastic finite element model was developed to simulate the vibratory stress relief(VSR)process.The parameter effects of VSR toward residual stress relief were analysed.Vibration can relieve residual stress of AI board by creating certain amount of plastic deformation;larger displacement induced by resonance is more effective to reduce residual stress;vibration time does not have a major impact on the vibration stress relief. |
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| Keywords: | residual stress vibration stress relief elastic-plastic simulation |
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