Roll- and pitch-plane-coupled hydro-pneumatic suspension. Part 2 dynamic response analyses

Cao, Dongpu and Rakheja, Subhash and Su, Chun-Yi (2010) Roll- and pitch-plane-coupled hydro-pneumatic suspension. Part 2 dynamic response analyses. Vehicle System Dynamics, 48 (4). pp. 507-528. ISSN 0042-3114

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In the first part of this study, the potential performance benefits of fluidically coupled passive suspensions were demonstrated through analyses of suspension properties, design flexibility and feasibility. In this second part of the study, the dynamic responses of a vehicle equipped with different configurations of fluidically coupled hydro-pneumatic suspension systems are investigated for more comprehensive assessments of the coupled suspension concepts. A generalised 14 degree-of-freedom nonlinear vehicle model is developed and validated to evaluate vehicle ride and handling dynamic responses and suspension anti-roll and anti-pitch characteristics under various road excitations and steering/braking manoeuvres. The dynamic responses of the vehicle model with the coupled suspension are compared with those of the unconnected suspensions to demonstrate the performance potential of the fluidic couplings. The dynamic responses together with the suspension properties suggest that the full-vehicle-coupled hydro-pneumatic suspension could offer considerable potential in realising enhanced ride and handling performance, as well as improved anti-roll and anti-pitch properties in a very flexible and energy-saving manner.

Item Type:
Journal Article
Journal or Publication Title:
Vehicle System Dynamics
Additional Information:
The final, definitive version of this article has been published in the Journal, Vehicle System Dynamics, 48 (4), 2010, © Informa Plc
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Deposited On:
29 Sep 2011 13:42
Last Modified:
28 May 2023 01:43