圆形阻尼层合板的拓扑优化设计及其实验验证

PDF(1262 KB)

振动与冲击 ›› 2012, Vol. 31 ›› Issue (22) : 76-79.

论文

圆形阻尼层合板的拓扑优化设计及其实验验证

刘远东尹益辉** 胡文军许茂

作者信息 +

Topology Optimization of a Circular Laminated Damping Plate with Its Experimental Verification

LIU Yuandong YIN Yihui HU Wenjun XU Mao

Author information +

文章历史 +

摘要

以阻尼材料的用量为约束，以最大化结构损耗因子为目标，利用有限元方法实现了圆形阻尼层合板的拓扑优化设计。对优化前、后的圆形阻尼层合板进行振动实验，测试结果表明优化后结构的阻尼比是优化前结构的1.3倍。基于结构阻尼比和单位体积结构损耗因子均表示结构件标准化阻尼能力和单调变化相同的特性，以实测的结构阻尼比来表征单位体积结构损耗因子，验证了结构拓扑优化设计的有效性。即优化设计圆形阻尼层合板的构型能够有效地降低阻尼层的用量，提高阻尼层的利用率，增强结构的阻尼特性。

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.

导出引用

刘远东尹益辉** 胡文军许茂. 圆形阻尼层合板的拓扑优化设计及其实验验证[J]. 振动与冲击, 2012, 31(22): 76-79

LIU Yuandong YIN Yihui HU Wenjun XU Mao. Topology Optimization of a Circular Laminated Damping Plate with Its Experimental Verification [J]. Journal of Vibration and Shock, 2012, 31(22): 76-79