阻振质量-刚度-阻尼材料配置同步优化的基座声学设计

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振动与冲击 ›› 2021, Vol. 40 ›› Issue (6) : 257-264.

论文

王语嫣1,2,3，杨德庆1,2,3

作者信息 +

Mass-stiffness-damping integrated design method for the acoustic optimization of mountings

WANG Yuyan1,2,3, YANG Deqing1,2,3

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文章历史 +

摘要

提出了一种通过配置阻振质量、优化构件尺寸和阻尼材料的基于声功率级约束的基座优化设计方法。不同于以往通过基座减振优化设计进而减小辐射噪声的方法，验证了基座声学优化设计对声隐身特性的直接效果。分别建立阻振质量单独优化、阻振质量-基座刚度同步优化、阻振质量-基座刚度-阻尼材料综合优化三种基座声学优化模型，比较了三种优化模型的优缺点。通过建立某算例基座声学动态代理模型，采用径向基函数（radial basis function,RBF）神经网络方法进行优化计算，得到满足设计要求的最优设计，拟合误差较小，结果较为可信。

Abstract

By configurating the vibration resistance mass, optimal component size and damping material, an acoustic optimization design method for base structures based on sound power level constraints was proposed.Different from the previous method of reducing the radiated noise through the vibration optimization design of base structures, the direct effect of acoustic optimization design on acoustic stealth characteristics was studied and verified.Three kinds of base acoustic optimization models, i.e., vibration resistance mass optimization, vibration resistance mass-base structure stiffness synchronization optimization and vibration resistance mass-base structure stiffness-damping material comprehensive optimization were explored respectively, and the advantages and disadvantages of the three optimization models were compared.By establishing the base acoustic dynamic agent model, and adopting the radial basis function （RBF） neural network method in the optimization calculation, the most optimal result meeting the requirements was obtained.The fitting error is small and the result is reliable.

导出引用

王语嫣1,2,3，杨德庆1,2,3. 阻振质量-刚度-阻尼材料配置同步优化的基座声学设计[J]. 振动与冲击, 2021, 40(6): 257-264

WANG Yuyan1,2,3, YANG Deqing1,2,3. Mass-stiffness-damping integrated design method for the acoustic optimization of mountings[J]. Journal of Vibration and Shock, 2021, 40(6): 257-264

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