| 引用本文: | 李道奎,张钟利,杨光松.电流变流体夹心梁的优化控制.[J].国防科技大学学报,1999,21(4):26-30.[点击复制] |
| Li Daokui,Zhang Zhongli,Yang Guangsong.Optimal Controlling of Electrorheological sandwich beam[J].Journal of National University of Defense Technology,1999,21(4):26-30[点击复制] |
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| 电流变流体夹心梁的优化控制 |
| 李道奎1, 张钟利1, 杨光松2 |
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(1.国防科技大学 航天技术系 湖南 长沙 410073;2.北京清河大楼子七 北京 100085)
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| 摘要: |
| 电流变流体的流变性质和力学性质在电场里随电场强度的变化而实时地、可逆地发生变化, 这一特点使得它在自适应结构中的应用受到越来越多的重视。电流变流体夹心梁是在两弹性层间夹入一层电流变材料, 通过控制电流变材料屈服前的流变性质和力学性质来达到控制整个复合梁的动态响应。本文通过建立两端简支的电流变流体夹心梁的结构模型, 模拟分析了复合梁的动态响应及不同激励频率下的优化电场。 |
| 关键词: 电流变流体夹心梁, 模型, 复模量, 优化控制 |
| DOI： |
| 投稿日期：1998-09-20 |
| 基金项目: |
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| Optimal Controlling of Electrorheological sandwich beam |
| Li Daokui1, Zhang Zhongli1, Yang Guangsong2 |
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(1.Department of Aerospace Technology, NUDT, Changsha, 410073;2.Qinghe Building Ziqi, Beijing, 100085)
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| Abstract: |
| Electrorheological (ER) materials experience real-time and reversible changes in rheological and mechanical properties when subjected to electrical fields, which draw much attention to the use of ER materials in adaptive structures recently. ER sandwich beam is composed of two elastic layers and sandwiched ER layer. By controlling the pre-yield rheological and mechanical properties of ER materials, the dynamical response of the composed beam is then controlled. In this paper, ER sandwich beam simply supported at two ends is moded. The dynamical response of ER sandwich beam and the optimal electrical fields corresponding to different frequency are analyzed. |
| Keywords: electrorheological sandwich beam, model, complex module, optimal control |
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