| 基于分布式压电片的圆柱壳结构振动功率流主动控制研究 |
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| 引用本文： | 金全洲,李天匀,赵耀,刘敬喜.基于分布式压电片的圆柱壳结构振动功率流主动控制研究[J].船舶力学,2010(Z1). |
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| 作者姓名： | 金全洲 李天匀 赵耀 刘敬喜 |
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| 作者单位： | 华中科技大学交通学院; |
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| 基金项目： | “十五”国防预研基金资助项目 |
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| 摘 要： | 对基于压电片作用的圆柱壳结构振动功率流主动控制进行了研究,原始激励假设为周向余弦分布线力形式,使用压电片作为控制激振器。以输入壳体的总功率流为控制目标函数,利用导纳函数将其表示成外加电压的二次型函数形式求解最优控制电压。通过计算分析发现,压电片与原始激励间的轴向距离及压电片周向粘贴位置,都会对控制后输入壳体的总功率流产生较大影响,且影响形式不同。
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| 关 键 词： | 圆柱壳 振动功率流 主动控制 压电片 |
Active control of the power flow put into the cylindrical shell by discretely distributed piezoelectric actuator |
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| JIN Quan-zhou,LI Tian-yun,ZHAO Yao,LIU Jing-xi.Active control of the power flow put into the cylindrical shell by discretely distributed piezoelectric actuator[J].Journal of Ship Mechanics,2010(Z1). |
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| Authors: | JIN Quan-zhou LI Tian-yun ZHAO Yao LIU Jing-xi |
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| Institution: | College of Traffic Science and Engineering;Huazhong University of Science and Technology;Wuhan 430074;China |
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| Abstract: | The active control method of the power put into the cylindrical shell structure by discretely dis-tributed piezoelectric actuator is studied.The shell is stimulated by a cosine harmonic line primary force and the secondary force is applied by using a piezoelectric actuator.The total power flow put into the cylin-drical shell structure is calculated and expressed in an equation of Hermitian quadratic form of the applied voltage.With the total power flow put into the shell as the objective function,the optima... |
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| Keywords: | cylindrical shell structure input power flow active control piezoelectric actuator |
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