Determination of Vibrations Transmissibility Characteristics of Air Suspension System for Vehicle Ride Comfort and Safety Assessment
Determination of Vibrations Transmissibility Characteristics of Air Suspension System for Vehicle Ride Comfort and Safety Assessment

Summary/Abstract: The purpose of this study was to determine the vibrations transmissibility characteristics of an air suspension system (ASS) with self-damping air bellows to assess the comfort and safety of the ride. The conceptual design of a pneumatic self-damping air bellow is presented, which involves forced airflow through a damping orifice between the air bellow and an auxiliary reservoir. Two dynamic models, classical and simple, of the analyzed air bellow were used for numerical modelling solutions. Vibrations transmissibility charts as a function of the frequency ratio and at different damping ratios were determined using the accepted excitation forces. The different vibrations transmissibility states and dynamic characteristics of the air bellow for the frequency ratios and individual damping (inherent, pneumatic self-damping, and hydraulic absorber) in the ASS range were examined.

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