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| Topology Optimization of a Circular Laminated Damping Plate with Its Experimental Verification |
| LIU Yuandong YIN Yihui HU Wenjun XU Mao |
| Institute of Systems Engineering, China Academy of Engineering Physics, P. O. Box 919-401, Mianyang, Sichuan 621900, China |
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Abstract By the finite element method, the topology optimization design of a circular laminated damping plate was performed. In the model the objective was to maximize the structural loss factors and the restraint was to restrain the amount of damping material. Vibration experiments were carried out for the original and optimized plates. The measured results indicated that the structural damping ratio of the optimized plate was 1.3 times than the original. Based on denoting standardized damping properties and the uniform monotonicity of structural damping ratio and structural loss factors of unit volume，the measured structural damping ratio represented the structural loss factors of unit volume. The measured results verified the effectiveness of the topology optimization, i.e., the topology optimization design of the circular laminated damping plate decreased the amount of the damping material, increased the damping material usage ratio, and enhanced the damping properties of the structure.
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Received: 13 September 2011
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2012, Vol. 31 
