| 压电主动杆位置和增益在随机智能桁架结构振动控制中的优化 |
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| 引用本文： | 高伟,陈建军,崔明涛,马洪波.压电主动杆位置和增益在随机智能桁架结构振动控制中的优化[J].振动与冲击,2003,22(1):56-60. |
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| 作者姓名： | 高伟 陈建军 崔明涛 马洪波 |
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| 作者单位： | 西安电子科技大学机电工程学院,西安,710071 |
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| 基金项目： | 西安电子科技大学青年科研基金资助项目 |
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| 摘 要： | 对结构物理参数、几何尺寸、作用荷载和控制力同时具有随机性时 ,随机压电智能桁架结构中主动杆的配置位置和闭环控制系统增益进行了优化 ,基于系统最小储存能 ,构建了具有动应力、动位移可靠性约束的主动杆配置和控制增益的优化模型 ;并对结构动力响应的数字特征进行了推导。通过算例 ,验证了该优化配置模型的合理性和有效性 ,获得了若干有意义的结论。
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| 关 键 词： | 压电主动杆 随机智能桁架 优化配置 振动主动控制 |
| 修稿时间： | 2002年4月12日 |
Optimization of Piezoelectric Active Bars'Placement and Feedback Gains in Active Vibration Control for Random Intelligent Truss Structures |
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| Gao Wei,Chen Jianjun,Cui Mingtao,Ma Hongbo.Optimization of Piezoelectric Active Bars''''Placement and Feedback Gains in Active Vibration Control for Random Intelligent Truss Structures[J].Journal of Vibration and Shock,2003,22(1):56-60. |
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| Authors: | Gao Wei Chen Jianjun Cui Mingtao Ma Hongbo |
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| Abstract: | Considering the randomness of physics parameters of structural materials,geometric dimensions of active bars and passive bars,applied loads and control forces simultaneously,the optimization of active bars'placement and feedback gains of closed loop control system for piezoelectric intelligent truss structures are studied in the paper.Based on the minimal energy stored in the structures,the optimal mathematical model with the reliability constraints on dynamic stress and displacement is built.The numerical characteristics of dynamic response based on probability property of intelligent structure are developed.Through example,the rationality and validity of presented model are demonstrated and some useful conclusions are obtained. |
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| Keywords: | piezoelectric active bar random intelligent truss structures optimal placement active vibration control |
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