Magneto-Rheological Fluid Semi-active Suspension Performance Testing

Wray, Andrea C.; Hoogterp, Francis B.; Garabedian, Scott; Anderfaas, Eric; Hopkins, Brian

doi:10.21236/ada421680

Cited by 6 publications

(3 citation statements)

References 1 publication

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“…mechanical [14], aerospace [15], and civil [16]). MR-fluid based semi-active suspension systems for both on-and off-road vehicles are among the early practical applications that were successfully installed in vehicles such as Cadillac, Corvette, and Hummer [17].…”

Section: Introductionmentioning

confidence: 99%

Development and experimental characterization of a large-capacity magnetorheological damper with annular-radial gap

Abdalaziz

Vatandoost

Rakheja

2022

Smart Mater. Struct.

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Magnetorheological (MR) dampers with bypass arrangements and combined annular-radial fluid flow channels have shown superior performance compared with those conventional MR dampers with single annular/radial fluid flow gaps. Achieving a higher controllable dynamic force range with low off-state but high on-state damping force is yet a significant challenge for the development of MR dampers for high payload ground vehicle suspensions. This paper presents the conceptual design, fabrication, and experimental characterization of a mid-sized large-capacity MR damper equipped with a compact annular-radial MR fluid bypass valve. Extensive experimental tests were conducted to investigate the dynamic characteristics of the proposed MR damper considering wide ranges of excitation frequency, loading amplitude, and electrical current. The equivalent viscous damping together with the dynamic range were calculated as functions of loading conditions considered. The proposed damper initially realized the maximum dynamic range and damping force of 2.3 and 5.54 kN, respectively. Modification of the MR valve design permitted the maximum dynamic range and damping force to substantially increase to 5.06 and 6.61 kN, respectively. The effectiveness of the proposed MR damper was subsequently identified by comparing its dynamic range with other conventional MR dampers in previous studies. The results confirmed the superior performance of the proposed MR damper and its potential application for highly adaptive suspension systems for off-road wheeled and tracked vehicles.

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Section: Introductionmentioning

confidence: 99%

Development and experimental characterization of a large-capacity magnetorheological damper with annular-radial gap

Abdalaziz

Vatandoost

Rakheja

2022

Smart Mater. Struct.

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“…Semi-active suspensions with adjustable damping were introduced in 1970s and can provide better trade-offs between suspension performance and power consumption than passive or active suspensions [1], [2]. For example, studies show that magnetorheological (MR) controllable fluid dampers demonstrated significantly improved ride quality and road handling with only hundreds of watts of actuation power [3], [4]. However, the need of electricity tethers active and semiactive suspensions to external batteries, increasing design difficulties and decreasing system reliability.…”

Section: Introductionmentioning

confidence: 99%

MPC-based Vibration Control and Energy Harvesting Using an Electromagnetic Vibration Absorber With Inertia Nonlinearity

Chen

Tai

et al. 2020

Preprint

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Simultaneous vibration control and energy harvesting of vehicle suspensions has attracted great research interests over the past decades. However, existing frameworks tradeoff suspension performance for energy recovery and are only responsive to narrow-bandwidth vibrations. In this paper, a new energy-regenerative vibration absorber (ERVA) using a ball-screw mechanism is investigated. The ERVA system is based on a rotary electromagnetic generator with adjustable nonlinear rotational inertia which passively increases the moment of inertia as the vibration amplitude increases. This structure is effective for energy harvesting and vibration control without increasing the suspension size. Furthermore, a nonlinear model predictive controller (NMPC) is applied to the system for further performance enhancement where we exploit road profile information as a preview. The performance of NMPCbased ERVA is demonstrated in a number of simulations and superior performance is demonstrated.

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“…MR damping devices has been used to carry out semi-active control in various field [4] . The experiments on HMMWV and stryker vehicle by US militry indicated that the MR semi-active suspension could reduced the vibration power absorbed by the driver significantly [5][6].…”

Section: Introductionmentioning

confidence: 99%

Magnetorheological Semi-Active Suspension System for a Tracked Vehicle

Peng

Zhang

et al. 2013

AMM

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A semi-active suspension system is researched for a heavy tracked vehicle to improve its suspension performance. This is achieved through a vane magnetorheological damper (VMRD) with special magnetic circuit which may attenuate the leak of MRF from assembly gap. A innovative strategy named frequency domain control (FDC) is proposed based on a conclusion that, in the frequency domain,the influence of damping coefficient to transmissibility for different suspension performance indicators is in good consistency. FDC only requires accelerometers mounted on sprung mass, meaning low price and high reliability that the tracked vehicle requires. The experiment indicates the designed semi-active suspension system based on VMRFD has an excellent vibration suppressing ability.

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Magneto-Rheological Fluid Semi-active Suspension Performance Testing

Cited by 6 publications

References 1 publication

Development and experimental characterization of a large-capacity magnetorheological damper with annular-radial gap

Development and experimental characterization of a large-capacity magnetorheological damper with annular-radial gap

MPC-based Vibration Control and Energy Harvesting Using an Electromagnetic Vibration Absorber With Inertia Nonlinearity

Magnetorheological Semi-Active Suspension System for a Tracked Vehicle

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