A magnetorheological fluid embedded pneumatic vibration isolator allowing independently adjustable stiffness and damping

The magnetorheological fluids (MRF) are a generation of smart fluids with the ability to alter their variable viscosity. Moreover, the state of the MRF can be switched from the semisolid to the fluid phase and vice versa upon applying or removing the magnetic field. The fast response and the controllability are the main features of the MRF-based systems, which make them suitable for applications with high sensitivity and controllability requirements. Nowadays, MRF-based systems are rapidly growing and widely being used in many industries such as civil, aerospace, and automotive. This study presents a comprehensive review to investigate the fundamentals of MRF and manufacturing and applications of MRF-based systems. According to the existing works and current and future demands for MRF-based systems, the trend for future research in this field is recommended.

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“…mechanism [58]. Moreover, the MRF can be used as the pneumatic rotary actuator to control rotary motion and velocities [44,[59][60][61]74].…”

Section: Pneumatic Motion Control With the Mrf Technologymentioning

confidence: 99%

The Recent Advances in Magnetorheological Fluids-Based Applications

Zareie¹,

Zabihollah²

2020

Emerging Trends in Mechatronics

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“…Other magnetic technologies for damping are magnetorheological dampers which, in addition, can be tuned to operate under different damping parameters [16].…”

Section: Magnetic Dampersmentioning

confidence: 99%

Z-Damper: A New Paradigm for Attenuation of Vibrations

Pérez-Díaz

Valiente-Blanco²,

Cristache³

2016

Machines

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“…An auxiliary chamber CG3 is connected to Chamber CG2 with a flow restrictor that is designed to operate on a laminar flow region for linear damping. An MR valve is connected to the two sides of a The non-dimensional analytical models can be given by [12]:…”

Section: Schematic Structure and Modeling Of The Mrepimentioning

confidence: 99%

“…This system can be regarded as a generic nonlinear vibration isolator system, which is composed of pneumatic spring and MR damper elements with hybrid and compact connection. The MrEPI allows independently adjustable stiffness, damping and height control with considerable maneuverable range and exhibits advantages of compact structure, less sealing and low power consumption, flexible and versatile control modes [12]. The advantageous dynamic performance of the MrEPI has been demonstrated through developing a nonlinear non-dimensional dynamic model with full consideration of nonlinear pneumatic springs and MR dampers.…”

Section: Introductionmentioning

confidence: 99%

Systematic design of a magneto-rheological fluid embedded pneumatic vibration isolator subject to practical constraints

Zhu

Jing

2012

Smart Mater. Struct.

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A systematic design of a magneto-rheological fluid embedded pneumatic vibration isolator (MrEPI) considering practical constraints and optimal performance is proposed. The design procedure basically consists of three steps, i.e. system level design, component level design and practical realization. The system level design involves synthesizing appropriate non-dimensional system parameters of pneumatic spring and MR damper elements based on parameter sensitivity analysis considering requirements for compact and efficient hardware utilization. The component level design involves optimal design of the MR valve by minimizing an objective function in terms of non-dimensional geometric, material and excitation parameters, and guaranteeing required performance in the worst cases. Then practical realization involves determining actual plant parameters from the non-dimensional analysis in system and component level designs with the considerations of practical requirements/constraints. To verify the effectiveness of this optimization procedure, the semi-active vibration control performance of the optimized MrEPI subject to harmonic disturbances is evaluated, which shows good isolation performance in all tested cases. This study actually provides a systematic method for the optimal analysis and design of all those nonlinear vibration isolators consisting of pneumatic spring and MR damper elements. This is achieved firstly by developing effective sensitivity analysis of dominant design parameters upon the adjustable stiffness and damping capacity irrespective of bulky or small system mass configuration and subsequently via a systematic realization design with the consideration of practical constraints in applications.

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A magnetorheological fluid embedded pneumatic vibration isolator allowing independently adjustable stiffness and damping

Cited by 36 publications

References 51 publications

The Recent Advances in Magnetorheological Fluids-Based Applications

The Recent Advances in Magnetorheological Fluids-Based Applications

Z-Damper: A New Paradigm for Attenuation of Vibrations

Systematic design of a magneto-rheological fluid embedded pneumatic vibration isolator subject to practical constraints

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