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TECHNICAL PAPERS

Vehicle Evaluation of the Performance of Magneto Rheological Dampers for Heavy Truck Suspensions

[+] Author and Article Information
David Simon, Mehdi Ahmadian

Advanced Vehicle Dynamics Laboratory, Department of Mechanical Engineering, Virginia Tech, MC-0238, Blacksburg, VA 24061

J. Vib. Acoust 123(3), 365-375 (Feb 01, 2001) (11 pages) doi:10.1115/1.1376721 History: Received October 01, 2000; Revised February 01, 2001
Copyright © 2001 by ASME
Topics: Dampers , Vehicles , Trucks
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References

Figures

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Ride comfort and vehicle handling compromise for passive dampers
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Schematic of twin-tube magneto-rheological dampers for heavy trucks
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A side-by-side comparison of magneto-rheological (MR) and passive stock dampers for heavy trucks
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Ideal performance of MR dampers used in this study
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Comparison between the MR damper force range and passive dampers force
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Passive-damper approximation of skyhook control dampers
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Rear passenger-side accelerometers
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Tri-axis accelerometer location behind the driver
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Instrumentation and data flow schematic
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Volvo VN heavy truck, Model 770 with the test trailer
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Location of MR dampers on test vehicle
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MR dampers installed on the front axle
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MR dampers installed on the rear axle
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Sample plot of acceleration data
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Acceleration results: average RMS acceleration for the test vehicle w/MR dampers and skyhook control policy
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Acceleration results: average RMS acceleration for the test vehicle with original dampers
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Sample plots of front passenger-side (A-Side) frame displacement
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Peak acceleration comparison
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RMS acceleration comparison
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Peak displacement comparison
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RMS displacement comparison
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Percent increase of acceleration peak intensity: controlled MR vs. original (transient)
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Percent increase of RMS acceleration: controlled MR vs. original dampers (steady state)
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Percent increase of acceleration peak intensity: controlled MR vs. original (steady state)

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