复合材料板簧的模态预测与分析

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (22) : 246-252.

论文

复合材料板簧的模态预测与分析

刘鹤龙1，史文库1，高蕊2，陈志勇1，陈晃2

作者信息 +

Modal prediction and analysis of composite leaf springs

LIU Helong1, SHI Wenku1, GAO Rui2, CHEN Zhiyong1, CHEN Huang2

Author information +

文章历史 +

摘要

为了能够对复合材料板簧的模态特性进行高效、准确的预测，基于经典层合板理论和微元法，建立了复合材料板簧的模态预测模型，并试制了玻璃纤维/环氧复合材料板簧对模型进行了验证。结果表明，该方法能够快速准确的预测复合材料板簧的垂向弯曲模态，有利于缩短复合材料板簧的开发周期。从复合材料的选材、铺层设计等角度出发，利用该模型分析了相关设计参数对板簧一阶弯曲模态频率的影响。分析结果表明，选用弹性模量较大、密度较小的复合材料、同时尽量增加簧身宽度、选择0°铺层方向角能够降低板簧与外界激励共振的可能性。该模型也能够对纤维增强型复合材料梁结构的模态预测提供参考。
关键词：复合材料;板簧；模态预测；微元法；

Abstract

In order to effectively and accurately predict the modal characteristics of composite leaf springs, a modal prediction model of composite leaf springs was established based on the classical laminate theory and micro-element method. The samples of glass/epoxy leaf spring were manufactured to verify the model. Then the model was used to analyze the influence of relevant design parameters on the first-order bending modal frequency of composite leaf springs. The results show that the possibility of resonance between the composite leaf springs and the external excitation can be reduced by selecting composite materials with larger elastic modulus and lower density, increasing the width of the spring body as much as possible and selecting ply orientation angle of 0°. The model can also provide a reference for the modal prediction of fiber reinforced composite beam structures.
Key words: composite; leaf spring; modal prediction; micro-element method;

导出引用

刘鹤龙1，史文库1，高蕊2，陈志勇1，陈晃2. 复合材料板簧的模态预测与分析[J]. 振动与冲击, 2022, 41(22): 246-252

LIU Helong1, SHI Wenku1, GAO Rui2, CHEN Zhiyong1, CHEN Huang2. Modal prediction and analysis of composite leaf springs[J]. Journal of Vibration and Shock, 2022, 41(22): 246-252

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