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| Optimal control of structural vibration using piezoelectric curved shell elements |
| Received:July 02, 2014 Revised:September 24, 2014 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201505004 |
| KeyWord:curved shell element curved shell structure piezoelectric actuator vibration optimal control |
| Author | Institution |
| 赵国忠 |
大连理工大学 工程力学系 工业装备结构分析国家重点实验室, 大连 |
| 翟景娟 |
大连理工大学 工程力学系 工业装备结构分析国家重点实验室, 大连 |
| 张冠锋 |
大连理工大学 工程力学系 工业装备结构分析国家重点实验室, 大连 |
| 冉令坤 |
大连理工大学 工程力学系 工业装备结构分析国家重点实验室, 大连 |
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| Abstract: |
| Curved shell structures have been widely used in aerospace,navigation and other fields,the tiny vibration of the structure will greatly affect the performance of components,it is necessary to control the vibration of curved shell structure.Optimal vibration control model of piezoelectric curved shell structure is presented,the base shell elements and the piezoelectric shell elements are coupled on the basis of the theory of spatial curved shell element and the multipoint constraint equations,and the dynamics finite element equation of piezoelectric curved shell structure is deduced.Optimal vibration control of piezoelectric curved shell structure is achieved by piezoelectric actuators according to the linear quadratic optimal control theory.Numerical examples are given to demonstrate that the required number of curved shell elements and actuators is much less than that of plat shell elements when they have the same precision and control effect at the same time in the dynamic analysis and vibration control of the curved shell structure. |