浅析振动试验中结构非线性引发的现象
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摘要: 火箭、卫星、导弹等航天产品普遍存在着结构非线性。在这些产品的振动试验中常常出现固有频率漂移、谐波响应等现象,并且会带来部件间固有频率耦合、碰撞振动、振动试验控制超差等问题。本文章从结构非线性入手定性的地分析了引发这些现象的原因,并介绍一些解决措施,为振动试验中类似问题的分析和解决提供参考。
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关键词:
- 振动;试验;非线性;频率响应;控制
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[1] Carney K. et al. Nonliner dynamic behavior in the Cassini spacecraft modal survey[C]//15th International Modal Analysis Conference. Part 1(of 2). CT, USA, 1997: 811-817 [2] Smith Kenneth S, et al. Modal test of the Cassini spacecraft[C]// 15th International Modal Analysis Conference. Part 1(of 2). CT, USA, 1997: 804-810 [3] 陈昌亚, 等. 卫星振动试验中固有频率“漂移”现象初步研究[J]. 振动与冲击, 2003, 22(4): 23-25 [Chen Changya, et al. Preliminary research on natural frequency drift in satellite vibration test[J]. Journal of Vibration and Shock, 2003, 22(4): 23-25] [4] 陈昌亚, 等. 随机振动量级增加卫星结构频率下移的分析[J]. 上海航天, 2004, 3: 44-47 [Chen Changya, et al. The Preliminary research about natural frequency decrease in satellite vibration test when excitation level increased[J]. Aerospace Shanghai, 2004, 3: 44-47] [5] 王建民, 等. 带有连接结构的导弹动特性试验研究方法[J]. 强度与环境, 2006, 33(1): 52-58 [Wang Jinmin, et al. The research for the dynamic charateristics of the missile with the jointed structure by the test method[J]. Structure & Environment Engineering, 2006, 33(1): 52-58] [6] 金栋平 , 胡海岩. 碰撞振动与控制[M]. 北京: 科学出版社, 2005 [Jin Dongping, Hu Haiyan. Vibro-impacts and Controlcontrol[M]. Beijing: Science Press 2005] [7] Moon F C, Li G X. Experimental study of chaotic vibrations in apin-jointed space tru
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