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Self-Excited Vibration In Hydraulic Steering Racks
Technical Paper
2003-01-0580
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper addresses the problem of self-excited vibration in power steering racks -- an instability that results in a vibration that the driver can feel at the steering wheel.
A coupled mathematical model is used to express the interaction between the rack's opposed hydraulic actuators and the shimmy vibration of the steering mechanism.
It is found that
- igh steering control valve gain causes an unstable self-excited vibration of the modeled system, and
- The system's susceptibility to instability depends upon the position of the rack in its stroke.
Adjustments to the system parameters significantly reduce this instability.
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Citation
Phillips, R., "Self-Excited Vibration In Hydraulic Steering Racks," SAE Technical Paper 2003-01-0580, 2003, https://doi.org/10.4271/2003-01-0580.Also In
SAE 2003 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V112-6; Published: 2004-09-15
Number: V112-6; Published: 2004-09-15