INVESTIGATION OF THE NONLINEAR DYNAMIC STIFFNESS OF ROLLING-LOBE AIR SPRINGS CONSIDERING RUBBER PAYNE EFFECT

IF 1.2 4区工程技术 Q4 POLYMER SCIENCE

Rubber Chemistry and Technology Pub Date : 2022-09-08 DOI:10.5254/rct.22.77996

Mingyu Wu, Shiwei Wang, Hao Tong, Jing Wang, Hang Yin, Wenbo Zheng, Yaochao Li, Zhen Yu, Yintao Wei

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引用次数: 2

Abstract

A nonlinear dynamic stiffness model of rolling-lobe air spring considering the Payne effect of the rubber diaphragm and the thermodynamic equivalent damping is proposed, with an aim to provide a theoretical basis for air spring structure design. A physical explanation and mathematical expression of each decoupled contribution term are given from the two dimensions of amplitude and frequency. An indicator test was designed to identify related parameters of the real and imaginary parts of dynamic stiffness. The results showed that the dynamic stiffness increases under a small excitation amplitude, verifying the correctness of the model considering the Payne effect. The influence of rubber diaphragm and gas terms is decoupled to separately illustrate the amplitude and frequency dependency of the real and imaginary parts of dynamic stiffness. A new evaluation index reflecting the contribution percentage of the rubber diaphragm is given, indicating that the stiffness of the rubber diaphragm at low amplitude cannot be ignored. In the end, the parameter influence and dynamic characteristics are provided so that the dynamic behavior of the rolling-lobe air spring can be predicted at the design stage. The proposed rolling-lobe air spring dynamic model considering the Payne effect of the rubber diaphragm provides guidance for the forward development and theoretical modeling of the air spring.

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考虑橡胶佩恩效应的滚叶空气弹簧非线性动刚度研究

建立了考虑橡胶膜片佩恩效应和热力学等效阻尼的滚动叶式空气弹簧非线性动态刚度模型，为空气弹簧结构设计提供理论依据。从幅度和频率两个维度给出了每个解耦贡献项的物理解释和数学表达式。设计了一种识别动刚度实部和虚部相关参数的指标试验。结果表明，在较小的激励幅值下，动刚度增大，验证了考虑Payne效应的模型的正确性。解耦了橡胶隔膜和气体项的影响，分别说明了动刚度实部和虚部的幅值和频率依赖性。给出了一种新的反映橡胶振膜贡献度的评价指标，表明橡胶振膜在低幅值时的刚度不容忽视。最后，给出了参数的影响和动态特性，为在设计阶段预测滚叶式空气弹簧的动态特性提供了依据。考虑橡胶膜片佩恩效应的滚动叶形空气弹簧动力学模型为空气弹簧的正向发展和理论建模提供了指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Rubber Chemistry and Technology 工程技术-高分子科学

CiteScore

3.50

自引率

20.00%

发文量

审稿时长

3.6 months

期刊介绍： The scope of RC&T covers: -Chemistry and Properties- Mechanics- Materials Science- Nanocomposites- Biotechnology- Rubber Recycling- Green Technology- Characterization and Simulation. Published continuously since 1928, the journal provides the deepest archive of published research in the field. Rubber Chemistry & Technology is read by scientists and engineers in academia, industry and government.