Modelling, validation and characterisation of high-performance suspensions by means of a suspension test rig Online publication date: Thu, 19-Sep-2019
by Christoph Zauner; Johannes Edelmann; Manfred Plöchl
International Journal of Vehicle Design (IJVD), Vol. 79, No. 2/3, 2019
Abstract: To meet the high demands and expectations on ride comfort and handling, detailed analysis of the vibrational behaviour of suspension systems is required. Therefore, component modelling and testing, as well as full vehicle tests, go hand in hand. The present study addresses possible benefits, when a suspension test rig is available, and howit may be used to analyse and characterise the vibrational behaviour of particular, isolated suspensions. Respective synthetic excitation spectra map the dynamic behaviour of the suspension from full vehicle tests. Component models are presented that show a reasonable compromise between modelling and parametrisation effort. Utilising the suspension test rig revealed that frictional effects must be considered when assembling the components to a full suspension model. Further, modal properties of the tested high-performance suspensions become obvious, that may allow for comparison with follow-up, similar suspensions. Finally, the suspension models are evaluated with full vehicle tests.
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