Semi-active control of automotive suspension systems with magneto-rheological dampers

Lam, Amy; Liao, Wei-Hsin

doi:10.1504/ijvd.2003.003652

Cited by 102 publications

(57 citation statements)

References 12 publications

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“…The utilization of MRFs has been increasing in the different semi-active damping control applications in the low to moderate frequency ranges, including automotive suspension 28 , civil structures [29][30][31][32] , fluid clutches 33 , optical polishing 34 and a variety of aerospace applications [35][36][37][38] , vibration isolation 39,40 , automobile valves 41 and automotive damping applications 42 . Lord Corporation, the leading supplier of commercially proven MR fluids, devices and systems, manufactures three different MR fluids namely LORD MRF-122EG, LORD MRF-132DG and LORD MRF-140CG (ref.…”

Section: Studies On Mr Fluidsmentioning

confidence: 99%

Developments in Vibration Control of Structures and Structural Components with Magnetorheological Fluids

Raju¹,

Varma²

2017

Current Science

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Vibration isolation and control of structures subjected to different types of dynamic loads due to periodic forces, impact and shock type forces and earthquake forces is an important area in structural engineering. The structures can be machine foundations, buildings, bridges, towers, automobiles, ship structures, military tanks and aeronautical structures. Some of these devices used are elastic springs, viscoelastic dampers, viscous fluid dampers, magnetorheological dampers and friction dampers. This article gives latest developments in vibration control of structures and structural components using magnetorheological fluids. The current status of technology and further research requirements to be studied in these areas are highlighted.Keywords: Automobile brakes, magnetorheological fluids, structure and structural components, suspension systems, vibration control.IMPROVEMENT in manufacturing technology has provided machines of higher ratings, longer bridges, taller buildings which requires to satisfy the static, dynamic capacity and serviceability and stability limits for members/ systems prescribed by codes of practice. These machines/ structures give rise to considerable higher dynamic forces and thereby higher stresses. This demands development of advanced control and safety systems to keep the structural members/systems static and dynamic responses within tolerable levels. The performance, safety and stability of structures supporting the machines/structures depend largely on their design of suspension systems and their interaction with the environment. In this article, current status of technology in development of magnetorheological and friction dampers and their use in vibration control of structural and structural components in different fields of engineering applications are presented.

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Section: Studies On Mr Fluidsmentioning

confidence: 99%

Developments in Vibration Control of Structures and Structural Components with Magnetorheological Fluids

Raju¹,

Varma²

2017

Current Science

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“…For example, investigators commonly use the MR damper in its 'on' or 'off' state to represent a passive suspension (Lam and Liao 2003). In the 'off' state, the damping is likely to be less than that of a well-damped passive device, whereas in the 'on' state the damping will be higher than a well-damped passive device.…”

Section: Mass-isolator Configurationsmentioning

confidence: 99%

“…Furthermore, investigators have implemented sliding mode control, for example, in automotive (Lam and Liao 2003) and aerospace (Choi and Wereley 2003) applications.…”

Section: Introductionmentioning

confidence: 99%

Vibration isolation with smart fluid dampers: a benchmarking study

Batterbee¹,

Sims²

2005

Smart Structures and Systems

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The non-linear behaviour of electrorheological (ER) and magnetorheological (MR) dampers makes it difficult to design effective control strategies, and as a consequence a wide range of control systems have been proposed in the literature. These previous studies have not always compared the performance to equivalent passive systems, alternative control designs, or idealised active systems. As a result it is often impossible to compare the performance of different smart damper control strategies.This article provides some insight into the relative performance of two MR damper control strategies: on/off control and feedback linearisation. The performance of both strategies is benchmarked against ideal passive, semi-active and fully active damping. The study relies upon a previously developed model of an MR damper, which in this work is validated experimentally under closed-loop conditions with a broadband mechanical excitation. Two vibration isolation case studies are investigated: a single-degree-of-freedom mass-isolator, and a two-degree-of-freedom system that represents a vehicle suspension system. In both cases, a variety of broadband mechanical excitations are used and the results analysed in the frequency domain. It is shown that although on/off control is more straightforward to implement, its performance is worse than the feedback linearisation strategy, and can be extremely sensitive to the excitation conditions.

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“…The application of MR fluids have been increasingly used in the various semi-active damping control applications in the low to moderate frequency ranges, including automotive suspension (Han et al [7]), structures (Pranoto et al [8], Yao et al [9]) and automotive damping applications (Lam and Liao [10]). Bunch of experimental and numerical research works are available in the field of dynamic analysis of complex composite structures (Kim et al [11]), Pandit et al [12]).…”

Section: Introductionmentioning

confidence: 99%

Semi-Active Vibration Control of Laminated Composite Sandwich Plate – An Experimental Study

Manoharan

Rajamohan

Sudhagar

2016

Archive of Mechanical Engineering

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In this study, the vibration analysis of fully and partially treated laminated composite Magnetorheological (MR) fluid sandwich plates has been investigated experimentally. The natural frequencies of fully and partially treated laminated composite MR fluid sandwich plates have been measured at various magnetic field intensities under two different boundary conditions. The variations of natural frequencies with applied magnetic field, boundary conditions and location of MR fluid pocket have been explored. Further, a comparison of natural frequencies of fully and partially treated MR fluid sandwich structure has been made at various magnetic field intensities.

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Semi-active control of automotive suspension systems with magneto-rheological dampers

Cited by 102 publications

References 12 publications

Developments in Vibration Control of Structures and Structural Components with Magnetorheological Fluids

Developments in Vibration Control of Structures and Structural Components with Magnetorheological Fluids

Vibration isolation with smart fluid dampers: a benchmarking study

Semi-Active Vibration Control of Laminated Composite Sandwich Plate – An Experimental Study

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