The paper presents a methodology to calculate the vertical stiffness of air spring. Investigation is focused on a convoluted air spring with one lobe. Based on the configuration of the membrane of the air spring and the geometry during its deflection, a stiffness expression dependant on the deflection is obtained. To have a good understanding of the performance of a single-degree-of-freedom system consisted of an air spring and a sprung mass, the paper provides an algorithm to simulate the motion of the system. The algorithm is a numerical step-by-step integration which combines explicit and implicit algorithms. A stiffness updating method based on the said stiffness expression is used in the dynamic simulation algorithm.
- Design Engineering Division and Computers and Information in Engineering Division
Stiffness Calculation and Dynamic Simulation of Air Spring
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Xu, W, He, L, Shuai, C, & Ye, Z. "Stiffness Calculation and Dynamic Simulation of Air Spring." Proceedings of the ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 1: 20th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C. Long Beach, California, USA. September 24–28, 2005. pp. 1395-1399. ASME. https://doi.org/10.1115/DETC2005-84338
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