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

Gordaninejad, Faramarz; Kelso, Shawn P.

doi:10.1106/k90w-1a63-7qa7-6eh4

Cited by 62 publications

(28 citation statements)

References 12 publications

(13 reference statements)

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“…On the other hand, ii ; (Xi -X2) jS equal or less than 0, then no current applied to MIRE damper. Therefore, the on-off skyhook control rule can be expressed as follows: (6) The maximum MR force for the particular fail-safe MIRE damper used in this study is experimentally determined to be 3500N.…”

Section: Control Algorithm For Mrf Dampermentioning

confidence: 99%

“…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%

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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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Section: Control Algorithm For Mrf Dampermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2003

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“…Carlson and Jolly showed the huge variety of commercial applications that these fluids open up [11]. ey are used in many fields and devices but one should emphasize their use as active dampers or shock absorbers [12] in applications which may range from civil engineering (buildings and bridges [13][14][15][16]) to transportation (vehicle seats [17,18], automobiles [19][20][21][22][23][24], railway vehicles [25][26][27], and even landing gears [28]). e authors have found in the literature a huge number of studies dealing with modelling of MR dampers as a function of excitation and current supplied.…”

Section: Introductionmentioning

confidence: 99%

Modelling Magnetorheological Dampers in Preyield and Postyield Regions

Palomares

Morales

Nieto

et al. 2019

Shock and Vibration

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The use of magnetorheological dampers has rapidly spread to many engineering applications, especially those related to transportation and civil engineering. The problem arises upon modelling their highly nonlinear behaviour: in spite of the huge number of apparently accurate models in the literature, most fail when considering the overall magnetomechanical behaviour. In this study, a brief but broad review of different magnetorheological damper models has been carried out, which includes characterisation, modelling, and comparison. Unlike many other studies, the analyses cover the behaviour from preyield to postyield regions of the MR fluid. The performance of the different models has been assessed by means of numerous experimental tests and by means of simulations in a simple and straightforward semiactive control case study. The results obtained prove that most models usually fail in predicting accurate low-velocity behaviour (before iron chains yield) and, as a result, may lead to bad estimations when used in control schemes due to modelling errors and chattering.

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“…In order to implement the semi-active control, a magnetorheological (MR) damper will be used in place of a passive damper. Many studies have shown the promise of MR technology for vehicle applications [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

A Hybrid Control Policy for Semi‐Active Vehicle Suspensions

Goncalves

Ahmadian

2002

Shock and Vibration

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Various control policies, such as skyhook and groundhook control, have often been considered for semi-active vehicle suspensions. Past studies have shown the performance limitations of these policies, as well as others that have been considered for vehicle applications. This study will provide a look into an alternative control technique called "hybrid control," which attempts to merge the performance benefits of skyhook and groundhook control. The results of this study are based on an experimental evaluation of hybrid control using a quarter-car rig and a magneto-rheological damper. The control policy is employed and evaluated under a steady-state or pure tone input, and a transient or step input. Peak-to-peak displacement and peak-to-peak acceleration are used to evaluate performance. The results indicate that hybrid control can offer benefits to both the sprung mass and the unsprung mass. The steady-state results reveal that hybrid control can be used to reduce the peak-to-peak displacements and accelerations of both bodies. The transient evaluation shows that hybrid control can be effective at reducing the peak-to-peak displacement of the sprung mass.

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

Cited by 62 publications

References 12 publications

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

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

Modelling Magnetorheological Dampers in Preyield and Postyield Regions

A Hybrid Control Policy for Semi‐Active Vehicle Suspensions

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