约束膜式空气弹簧的刚度建模与分析

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (1) : 60-67.

论文

约束膜式空气弹簧的刚度建模与分析

赵亚敏1,2，崔俊宁1,2，邹丽敏1,2，边星元 1,2，程钟义1,2

作者信息 +

Stiffness modeling and analysis of constrained membrane air spring

ZHAO Yamin1,2, CUI Junning1,2, ZOU Limin1,2, BIAN Xingyuan1,2, CHENG Zhongyi1,2

Author information +

文章历史 +

摘要

针对空气弹簧实际刚度与理论值相差较大的问题，建立了约束膜式空气弹簧的改进刚度模型。改进模型兼顾弹性膜弧长变化及其变形引起的腔室体积变化，理论与实验刚度的偏差为9.67%，相比传统模型计算精度提高7.63%。基于改进刚度模型的分析结果表明:大腔室体积、小有效面积、大弹性膜圆弧半径的结构设计，高弧长变化率的材料及高充气压强的工作方式有利于实现低刚度隔振特性。本文的研究为大承载、低频/超低频约束膜式空气弹簧的结构优化设计与精密加工提供了有效的理论依据。

Abstract

An improved stiffness model of the constrained diaphragm air spring is established to solve the problem that the actual stiffness of the air spring differs greatly from the theoretical value. The improved model takes into account the variation of the arc length and the chamber volume caused by the deformation of the elastic membrane. The deviation between the theoretical and experimental stiffness is 9.67%, which is 7.63% more accurate than that of the traditional model. The analysis results based on the improved stiffness model show that the air spring with large volume, small effective area, large elastic membrane arc radius, high arc length gradient, and high pressure is beneficial to achieve low stiffness isolation. The research in this paper provides an effective theoretical basis for the structural optimization and precision machining of large bearing, low frequency or ultra-low frequency constrained diaphragm air spring.

导出引用

赵亚敏1,2，崔俊宁1,2，邹丽敏1,2，边星元 1,2，程钟义1,2. 约束膜式空气弹簧的刚度建模与分析[J]. 振动与冲击, 2022, 41(1): 60-67

ZHAO Yamin1,2, CUI Junning1,2, ZOU Limin1,2, BIAN Xingyuan1,2, CHENG Zhongyi1,2. Stiffness modeling and analysis of constrained membrane air spring[J]. Journal of Vibration and Shock, 2022, 41(1): 60-67

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