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A new active variable stiffness suspension system using a nonlinear energy sink-based controller

delete2013-10-01
delete14
PRE
AI
O
Olugbenga Moses Anubi *
C
Carl D. Crane
DOI:10.1080/00423114.2013.815358delete
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Abstract

Abstract

En 中文
This paper presents the active case of a variable stiffness suspension system. The central concept is based on a recently designed variable stiffness mechanism which consists of a horizontal control strut and a vertical strut. The horizontal strut is used to vary the load transfer ratio by actively controlling the location of the point of attachment of the vertical strut to the car body. The control algorithm, effected by a hydraulic actuator, uses the concept of nonlinear energy sink (NES) to effectively transfer the vibrational energy in the sprung mass to a control mass, thereby reducing the transfer of energy from road disturbance to the car body at a relatively lower cost compared to the traditional active suspension using the skyhook concept. The analyses and simulation results show that a better performance can be achieved by subjecting the point of attachment of a suspension system, to the chassis, to the influence of a horizontal NES system.
Keywords:
suspension
variable stiffness
vehicle
nonlinear energy sink
singular perturbation
ride comfort
suspension deflection
variance gain

Journal

V
Vehicle System Dynamics
IF:
3.9
Papers:
3.1K
Citations:
8.9K

Organization

State University System of Florida cover
State University System of Florida
Scholars:
12.7W
Papers: 10.9W
Citations: 130