Semiactive Suspension for Military Vehicles

Hoogterp, Francis B.; Saxon, Nancy L.; Schihl, Peter

doi:10.4271/930847

Cited by 21 publications

(11 citation statements)

References 3 publications

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“…A 22 ton experimental tracked vehicle (called the Mobility Technology Test Bed or MTTB by its creator) was tested over a variety of cross-country terrains. Five different configurations of the semiactive MTTB were tested against its equivalent normally damped system [1]. A 30-40 % increase in cross-country ride limiting speed (as measured at the driver's seat) was recorded for each of the five vehicle configuration pairs.…”

Section: Semiactive Suspension Past Resultsmentioning

confidence: 99%

Magneto-Rheological Fluid Semi-active Suspension Performance Testing

Wray¹,

Hoogterp²,

Garabedian³

et al. 2003

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Section: Semiactive Suspension Past Resultsmentioning

confidence: 99%

Magneto-Rheological Fluid Semi-active Suspension Performance Testing

Wray¹,

Hoogterp²,

Garabedian³

et al. 2003

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“…Experiments have demonstrated that the utilization of semi-active suspension technology in military vehicles can substantially increase the cross-country mobility (Hoogterp et al, 1993). The present study provides an innovative, fail-safe, semi-active, magneto-rheological fluid (MRF) damper for the suspension system of HMMWVs.…”

Section: Introductionmentioning

confidence: 97%

Fail-Safe Magneto-Rheological Fluid Dampers for Off-Highway, High-Payload Vehicles

Gordaninejad

Kelso

2000

Journal of Intelligent Material Systems and Structures

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This paper presents the study of a field-controllable, semi-active magneto-rheological fluid (MRF) shock absorber for high-payload, off-highway vehicles. A MRF damper is developed that is tailored for ground vehicles which undergo a wide range of dynamic loading. The MRF damper also has the capability for different rebound and compression characteristics. The new MRF shock absorber emulates the original equipment manufacture shock absorber behavior in its passive-off mode. Theoretical and experimental studies are performed to examine this MRF damper. The Bingham Plastic theory is employed to model the nonlinear behavior of the MRF. A fluid-mechanics-based theoretical model along with a three-dimensional finite element electromagnetic analysis is utilized to predict the MRF damper performance. The theoretical and experimental results are demonstrated to be in good agreement.

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“…Advances in technology that allow for significant enhancement in cross-country mobility can affect the battlefield engagement's location and timing [1]. Test results have clearly demonstrated that the utilization of semi-active suspension technology in military vehicles can increase the cross-country mobility more than 30% [2].…”

Section: Introductionmentioning

confidence: 99%

“…Conventional suspension system design has reached its practical limits towards significantly increasing cross-country performance [2]. A semi-active suspension system, which consists of a conventional spring and an adaptive (or variable damper), has shown to be a practical solution for enhancing the performance of conventional systems.…”

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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Semiactive Suspension for Military Vehicles

Cited by 21 publications

References 3 publications

Magneto-Rheological Fluid Semi-active Suspension Performance Testing

Magneto-Rheological Fluid Semi-active Suspension Performance Testing

Fail-Safe Magneto-Rheological Fluid Dampers for Off-Highway, High-Payload Vehicles

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

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