Impact of Inerter Nonlinearities on Vehicle Suspension Control
Resource
Vehicle System Dynamics 46 (7): 575-595
Journal
Vehicle System Dynamics
Journal Volume
46
Journal Issue
7
Pages
575-595
Date Issued
2008
Date
2008
Author(s)
Abstract
This paper discusses the nonlinear properties of inerters and their impact on vehicle suspension control. The inerter was recently introduced as an ideal mechanical two-terminal element, which is a substitute for the mass element, where the applied force is proportional to the relative acceleration across the terminals. Until now, ideal inerters have been applied to vehicle, motorcycle and train suspension systems, in which significant performance improvement was achieved. However, due to the mechanical construction, some nonlinear properties of the existing mechanical models of inerters are noted. This paper investigates the inerter nonlinearities, including friction, backlash and the elastic effect, and their influence on vehicle suspension performance. A testing platform is also built to verify the nonlinear properties of the inerter model.
SDGs
Type
journal article
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