The Simulation of an Automotive Air Spring Suspension Using a Pseudo-Dynamic Procedure

Applied Sciences

AlfredoB. Morais¹  FranciscoJ. M. Q. de Melo²  AntónioB. Pereira² 

[1] Aveiro Research Centre of Risks and Sustainability in Construction, University of Aveiro, 3810-193 Aveiro, Portugal;Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal;

关键词: pneumatic bellows;    air spring;    isothermal and adiabatic equations;    pseudo-dynamic testing;   

DOI  :  10.3390/app8071049

来源: DOAJ

【 摘 要 】

This paper describes a numerical solution to characterize the deformation of a bellows-type air spring for automotive suspensions. In a first step, the shell structure is modeled as a practically inextensible membrane that has virtually no bending stiffness; the structure has only a pneumatic-elastic deformation due to the compressibility of the pressurized air. In a second step, a finite element modeling of the device using a commercial code is carried out in order to validate the first model. Complementing this work, an experimental procedure based on a pseudo-dynamic technique was implemented to simulate the behavior of the pneumatic suspension bellows subjected to dynamic loads. The method consists of a combined numeric/experimental procedure simulating a suddenly applied load.

【 授权许可】

Unknown