Vibration and Damping Analysis of a Composite Plate With Active and Passive Damping Layer
-
摘要: 给出了含主被动阻尼非对称复合材料层合板结构的振动微分方程;得到了在压电材料和高粘弹材料作主被动阻尼层情况下,简支层合板结构自由振动的自然频率和损失因子的解析解;分析了正逆向压电效应对自然频率和损失因子的影响.Abstract: The equations of motion and boundary conditions governing the vibration of nonsymmetric composite plates with active and passive dampings layer are derived. The analytical solution is first obtained for frequencies and loss factors of the plates with active constrained layer damping treatments. The distributions of electric potential across the thickness of piezoelectric layer and relevant governing equations are obtained when the direct and inverse piezoelectric effects are considered. The influence of the direct and inverse piezoelectric effects on the frequencies and loss factors are investigated.
-
Key words:
- active constrain /
- free vibration /
- loss factor
-
[1] 1] Baz A,Ro J.Partial treatment of flexible beams with active constrained layer damping[A].Conference of Engineering Sciences Society[C].Charlottesville,VA:ASME-AMD,167,1993,61~80. [2] Shen I Y.Bending-vibration control of composite and isotropic plates through intelligent constrained-layer treatments[J].Smart Mater Struct,1994,3(3):340~355. [3] Mead D J,Markus S.The forced vibration of a three-layer damped sandwich beam arbitrary boundary conditions[J].J Sound and Vibration,1969,10(2):163~175. [4] Ditaranto R A.Theory of the vibratory bending for elastic and viscoelastic layered finite length beams[J].ASME J Applied Mechanics,1965,32:881~886. [5] Shen I Y.Hybrid damping through intelligent constrained layer treatments[J].ASME J Vibration and Acoustics,1994,116:341~349. [6] Baz A.Boundary control of beams using active constrained layer damping[J].ASME J Vibration and Acoustics,1997,119:166~172. [7] Shen I Y.A variation formulation,a work-energy relation and damping mechanisms of active constrained layer treatments[J].ASME J Vibration and Acoustics,1997,119:192~199. [8] Baz A,Ro J.Optimum design and control of active constrained layer damping[J].Trans ASME,Special 50th Anniversary Design Issue,1995,117:135~144. [9] Vasundara V V,Vijay K V.Closed loop finite-element modeling of active/passive damping in structural vibration control[J].J Smart Mater Struct,1996,5(5):685~694. [10] 田晓耕,沈亚鹏.主动约束阻尼结构的数值分析方法[J].计算力学学报,1998,15(4):423~428. [11] Johnson Conor D,Kienholz D A.Finite element prediction of damping in structures with constrained viscoelastic layers[J].AIAA J,1982,20(9):1280~1284.
点击查看大图
计量
- 文章访问数: 2196
- HTML全文浏览量: 107
- PDF下载量: 605
- 被引次数: 0