Ride Comfort Analysis of a Full-Vehicle Featuring Magnetorheological Shock Absorbers

Kum Gil Sung; Seung Bok Choi

doi:10.4028/www.scientific.net/AST.56.225

Paper Titles

Monitoring Prestress Level in Seven Wire Prestressing Tendons by Inter Wire Ultrasonic Wave Propagation
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A Vibration Exciter for Evaluating Cable Damping of a Cable-Stayed Bridge
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Response Control Performance Evaluation of MR Damper by Shaking Table Tests and Real-Time Hybrid Tests
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A Reliability Assessment Model for MR Damper Components within a Smart Structural Control Scheme
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Ride Comfort Analysis of a Full-Vehicle Featuring Magnetorheological Shock Absorbers
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Anti-Overturning Control of a Serially Connected Isolation System Using Piezo Electric and MR Tube Support
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On Behavior of Multi-Layered Bases- Foundations and Seismoisolators
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Fault Tolerant Neural Aided Controller for Multi Degree of Freedom Structures Experiencing Online Sensor Failure
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Optimal Placement of MFC Actuators for Vibration Control of Cylindrical Shell Structure
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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 56Ride Comfort Analysis of a Full-Vehicle Featuring...

Ride Comfort Analysis of a Full-Vehicle Featuring Magnetorheological Shock Absorbers

Abstract:

This paper presents ride comfort analysis of a full-vehicle featuring controllable magnetorheological (MR) shock absorbers. In order to achieve this goal, two flow mode MR shock absorbers (one for front suspension; one for rear suspension) are designed using an optimization methodology based on design specifications for a commercial passenger vehicle. The optimization problem is to find optimal geometric dimensions of the magnetic parts for the front and rear MR shock absorbers in order to improve the performance such as damping force. After manufacturing the proposed MR shock absorbers, their field-dependent damping forces are experimentally evaluated. The governing equation of motion for the full-vehicle is then established and integrated with the model of the MR shock absorbers. Subsequently, skyhook controllers for the MR suspensions are formulated and implemented. Ride comfort performances of the full-vehicle installed with the proposed MR shock absorbers are evaluated under bump and random road.