Semi-active engine mount design using auxiliary magneto-rheological fluid compliance chamber

Mansour, Hossein; Arzanpour, Siamak; Golnaraghi, M. F.; Parameswaran, Ash M.

doi:10.1080/00423111003596750

Cited by 21 publications

(13 citation statements)

References 23 publications

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“…The middle assembly, that is, components 3 through 6, separates the inner volume of the mount into two chambers. Figure 19 by Mansour et al [14].…”

Section: Magnetorheological Fluid Mountsmentioning

confidence: 98%

“…Another design approach, shown in Figure 19, was taken by Mansour et al [14]. The authors incorporated an MR chamber, that is the equivalent of an MR damper, into the Figure 16: Results for dynamic stiffness (a) and phase angle (b) for the mount with MR valve only.…”

Section: Magnetorheological Fluid Mountsmentioning

confidence: 99%

“…This figure indicates the range over which the dynamic stiffness can be controlled during the operation of the mount. The mixed mode mount Simulated results for the change in dynamic stiffness and phase angle of the mount with the change in magnitude of compliance of the upper chamber of the mount by Mansour et al[14]. Experimental values for the dynamic stiffness characteristic (a) and phase angle (b) of the MR fluid-based mount developed by Mansour et al[14].…”

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confidence: 99%

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MR- and ER-Based Semiactive Engine Mounts: A Review

Elahinia

Ciocanel

Wang³

2013

Smart Materials Research

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Hybrid propulsion technologies, including hybrid electric and hydraulic hybrid, equip vehicles with nonconventional power sources (in addition to the internal combustion engine) to provide higher fuel efficiency. However, these technologies tend to lead to higher levels of noise, vibration, and harshness in the vehicles, mainly due to the switching between the multiple power sources involved. In addition, the shocks and vibrations associated with the power sources switching may occur over a wide range of frequencies. It has been proven that passive vibration isolators (e.g., elastomeric and hydraulic mounts) are unable to mitigate or totally isolate such shocks and vibrations. Active mounts, while effective, are more complex, require significant power to operate, and can lead to system instabilities. Semiactive vibration isolators have been shown to be as effective as active mounts while being less complex and requiring less power to operate. This paper presents a review of novel semiactive shock and vibration isolators developed using magnetorheological and electrorheological fluids. These fluids change their yield stress in response to an externally applied magnetic and electric field, respectively. As a result, these fluids allow one to transform a passive hydraulic vibration isolator into a semiactive device.

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“…The middle assembly, that is, components 3 through 6, separates the inner volume of the mount into two chambers. Figure 19 by Mansour et al [14].…”

Section: Magnetorheological Fluid Mountsmentioning

confidence: 98%

Section: Magnetorheological Fluid Mountsmentioning

confidence: 99%

mentioning

confidence: 99%

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MR- and ER-Based Semiactive Engine Mounts: A Review

Elahinia

Ciocanel

Wang³

2013

Smart Materials Research

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“…However, the total amount of MR fluid for this design structure is very large and hence the manufacturing cost will be increased. The MR mount with the modified chamber using a coil was studied by Mansour et al [17]. Its modification is shown in Figures 15(a) and 15(b).…”

Section: Configurations Of High Loaded Mr Mountsmentioning

confidence: 99%

High Loaded Mounts for Vibration Control Using Magnetorheological Fluids: Review of Design Configuration

Phu

Choi

2015

Shock and Vibration

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Design configurations of high loaded magnetorheological (MR in short) mounts are reviewed and discussed. The configurations are analyzed on the basis of three operating modes of MR fluid: flow mode, shear mode, and squeeze mode. These modes are significantly important to develop new type of mounts and improve the efficiency of vibration control. In this paper, advantages and disadvantages of each operation mode are analyzed on the basis of ability of designing high loaded mounts. In order for analysis, the field-dependent damping force equations for typical cross sections of mounts are firstly investigated while maintaining original equations of these cross sections. As a subsequent step, simulation tools for the high loaded mounts are investigated and discussed. These tools which are developed from the analyzed method are expressed as functions of various design parameters such as inside pressure, magnetic field, dimension, stiffness, and damping. These tools are essential for accurate design of MR mount and for careful checking of the operation capability before manufacturing the mounts. This paper can provide very useful information and guidelines to determine an appropriate design configuration of high loaded mounts whose vibration control performances depend on the operational mode of MR fluid.

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“…Magnetorheological (MR) mounts are a typical application of MR fluids. [1][2][3][4][5] MR mounts with different structures and performances have been applied in various vibration control systems [6][7][8][9][10][11][12][13][14][15][16][17][18][19] and have been a hot research topic that has attracted worldwide attentions. A squeeze-flow hybrid mode MR mount was designed, optimized and tested by Elahinia's group.…”

Section: Introductionmentioning

confidence: 99%

Magnetorheological semi-active mount system for engines: Prototyping and testing

Liu

Bai

Liu

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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In order to maximize the controllability of magnetorheological (MR) mount for engines, a novel (MR) mount with an internal bypass (MRM-IB), which provides particular advantages of large dynamic stiffness range, small field-off dynamic stiffness and long available stroke under full vibration frequency range, is proposed and investigated in this paper. The proposed MRM-IB consists of a main rubber spring unit for supporting static load and a MR damping unit for mechanical energy dissipation. The MR damping unit is composed of a piston assembly, a MR fluid chamber and an annular MR fluid channel sandwiched by two concentric cylinders, that is, the inner and outer cylinders. Electromagnetic coil winding is wound on the outside of the inner cylinder and continuous damping/dynamic stiffness of the MRM-IB is tuned by the applied current in the coils. Structural principle of the magnetic circuit of the proposed MRM-IB is validated and analyzed, and the mathematical model of the controllable damping force is then established. In addition, a frequency-based piecewise controller and a fuzzy controller for a specific MR semi-active automotive mount system are designed, and the theoretical simulation and the experimental tests of the system are conducted, compared and analyzed.

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Semi-active engine mount design using auxiliary magneto-rheological fluid compliance chamber

Cited by 21 publications

References 23 publications

MR- and ER-Based Semiactive Engine Mounts: A Review

MR- and ER-Based Semiactive Engine Mounts: A Review

High Loaded Mounts for Vibration Control Using Magnetorheological Fluids: Review of Design Configuration

Magnetorheological semi-active mount system for engines: Prototyping and testing

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