Design and Evaluation of an Adjustable Automobile Suspension

Barak, Pinhas

doi:10.4271/890089

Cited by 11 publications

(5 citation statements)

References 6 publications

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“…One benefit of using MR fluid for varying damping force in lieu of a mechanical method is in device response time: the time required to change apparent viscosity of MR fluid is far less than the time a mechanical system requires to vary orifice size [9]. It is the design intent of this MR damper to accommodate feedback control strategies across a broad frequency spectrum.…”

Section: The Electromagnetic Circuitmentioning

confidence: 98%

<title>Experimental characterization of commercially practical magnetorheological fluid damper technology</title>

Kelso¹

2001

SPIE Proceedings

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As technologies for magnetorheological (MR) fluid hardware further evolve towards commercial adoption, the appeal for simpler, more cost-effective solutions becomes evident. While the skills involved in methods of manufacturing and costreduction efforts for mass production lie with the manufacturing community, practical and cost-effective MR technologies must first exist. As part of a 'whole approach' MR solution, the MR damper technology presented in this paper illustrates the development of a fast-response, low-power, cost-effective solution. Fundamentally, a competitive 'whole approach' active or semi-active MR solution can be viewed as system of separate components: parameter sensing, intelligent control, power delivery, and MR hardware technology. The development of any one single component should not successfully evolve without the addressing the cost efficiency and commercialization concerns of the other three. The MR hardware component should be predictable in performance behavior, capable of high damping force at minimal power, and fast in time response to complement simplified control schemes. The design effort is further challenged to meet these requirements within a simple, cost-effective package that holds commercial development appeal.This research includes the characterization of a new prototype MR damper including a description of the device technology, characterization test results and current work. It is evident by these results that this MR technology, comprising simple, commercial-off-the-shelf (COTS) components where possible, presents an attractive, practical and cost effective component of the 'whole approach' MR solution.

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Section: The Electromagnetic Circuitmentioning

confidence: 98%

<title>Experimental characterization of commercially practical magnetorheological fluid damper technology</title>

Kelso¹

2001

SPIE Proceedings

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“…The variable damper provides a controllable damping force. It has also been demonstrated that semi-active suspensions can provide the same performance as active suspensions without high power consumption and with very small design variations from conventional passive systems [3,4]. Force controllability ofMRF dampers make them attractive, and that they could potentially be used for the HMMWV [5,6].…”

Section: Introductionmentioning

confidence: 99%

Study of a quarter model HMMWV suspension system using a magnetorheological fluid damper

et al. 2003

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In this paper, a theoretical study is presented to compare the performance of a non-symmetric (i.e., different damping force characteristics in rebound and compression), fail-safe, magneto rheological fluid (MRF) damper with an Original Equipment Manufacturer (OEM) damper for off-highway, high mobility multi-purpose wheeled vehicle (HMMWV) using a quarter car model. In addition, an experimental set up for a full-scale two degree-of-freedom quarter car model suspension system of a HMMWV is constructed. Simple harmonic displacement input is used as the road profile. Skyhook algorithm is utilized to control the MRF damper. Displacement and acceleration transmissibility to the sprung mass are determined to compare performances of controlled MRF and passive OEM dampers. The experimental results for OEM damper are also compared with theoretical predictions.

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“…The variable damper provides a controllable damping force. It has also been demonstrated that semi-active suspensions can provide the same performance as active suspensions (which includes power actuators) without high power consumption and with very small design variations from conventional passive systems (Ivers, andMiller, 1991, andBarak, 1989).…”

Section: Introductionmentioning

confidence: 99%

A Novel Magneto-Rheological Shock Absorber for Vibration Control

Gordaninejad¹

2001

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Design and Evaluation of an Adjustable Automobile Suspension

Cited by 11 publications

References 6 publications

<title>Experimental characterization of commercially practical magnetorheological fluid damper technology</title>

<title>Experimental characterization of commercially practical magnetorheological fluid damper technology</title>

Study of a quarter model HMMWV suspension system using a magnetorheological fluid damper

A Novel Magneto-Rheological Shock Absorber for Vibration Control

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