Active and Semi Active Vibration Isolation Systems Based on Magnetorheological Materials

Bazinenkov, A. M.; Mikhailov, V. P.

doi:10.1016/j.proeng.2015.06.021

Cited by 30 publications

(17 citation statements)

References 5 publications

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“…One end of the MR elastomer (2) is connected to a shaft (4), second end is fixed to the wing (3). The control module (9) is connected to the power supply (8). The control module controls (9) the servomechanism (Skalski et al, 2014).…”

Section: Applications Of Magnetorheological Elastomersmentioning

confidence: 99%

Role of Magnetorheological Fluids and Elastomers in Today’s World

Skalski

Kalita

2017

Acta Mechanica Et Automatica

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This paper explains the role of magnetorheological fluids and elastomers in today's world. A review of applications of magnetorheological fluids and elastomers in devices and machines is presented. Magnetorheological fluids and elastomers belong to the smart materials family. Properties of magnetorheological fluids and elastomers can be controlled by a magnetic field. Compared with magnetorheological fluids, magnetorheological elastomers overcome the problems accompanying applications of MR fluids, such as sedimentation, sealing issues and environmental contamination. Magnetorheological fluids and elastomers, due to their ability of dampening vibrations in the presence of a controlled magnetic field, have great potential present and future applications in transport. Magnetorheological fluids are used e.g. dampers, shock absorbers, clutches and brakes. Magnetorheological dampers and magnetorheological shock absorbers are applied e.g. in damping control, in the operation of buildings and bridges, as well as in damping of high-tension wires. In the automotive industry, new solutions involving magnetorheological elastomer are increasingly patented e.g. adaptive system of energy absorption, system of magnetically dissociable [hooks/detents/grips], an vibration reduction system of the car's drive shaft. The application of magnetorheological elastomer in the aviation structure is presented as well.

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Section: Applications Of Magnetorheological Elastomersmentioning

confidence: 99%

Role of Magnetorheological Fluids and Elastomers in Today’s World

Skalski

Kalita

2017

Acta Mechanica Et Automatica

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“…In comparison to passive vibration isolation system, semi-active vibration isolation system has better vibration isolation performance especially in low frequency range. Compared with active vibration isolation system, semi-active vibration isolation system does not require a lot of energy and weight [9,10]. In addition, it has a relatively simple control system, low cost and reliable operation.…”

Section: Introductionmentioning

confidence: 99%

Research on semi-active vibration isolation system based on electromagnetic spring

Yang

et al. 2020

Mechanics & Industry

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This paper proposes a semi-active variable stiffness vibration isolation system based on electromagnetic spring for the low-frequency vibration isolation of mass-varying objects. It is achieved by four straight leaf springs in parallel to an electromagnetic spring system composed of a single electromagnet and a permanent magnet. The equivalent magnetic circuit method is used to compute electromagnetic force of the electromagnetic spring system, and mathematical model of the semi-active vibration isolation system is established according to Maxwell's equations. The nonlinear mathematical model is linearized at the equilibrium point by using the Taylor series expansion theorem to establish linear state-space representation of the system, and then using the traditional PID control method, a double closed-loop feedback control system of the inner current loop and outer location loop is designed. By controlling the current in the coil, the equivalent stiffness and electromagnetic force of the system are variable to achieve semi-active control. Furthermore, the control block diagram of the semi-active vibration isolation system is built based on Simulink software, then make a simulation analysis to the vibration isolation performance of the system and compare the effects of vibration isolation with inner current loop control and without inner current loop control, respectively. Finally, the experiments prove the correctness of the theory. It concludes that this semi-active vibration isolation system is a vibration isolation system with broad application prospects, which has fast current response, high vibration isolation efficiency, and an excellent vibration isolation effect for the low-frequency disturbance of mass-varying objects.

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“…However, these systems deliver limited performance in vibration control applications due to noncontrollable shock absorber parts (Lou et al 2013). Active isolation systems are most effective at low frequencies and large amplitudes of vibration (Bazinenkov and Mikhailov 2015), which require a closed-loop control system with feedback, such as displacement or vibration sensors and positioning mechanisms. However, high cost and complex technology are major barriers to commercial use of active isolation systems (Han et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Development and simulation of magnetorheological damper for segment erector vibration control

Yang

Zhang

Bai

et al. 2019

Transactions of the Canadian Society for Mechanical Engineering

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In this paper, magnetorheological dampers are applied to a segment erector to replace passive vibration dampers. Because magnetorheological damper dynamics are highly nonlinear, design of a direct control system is impossible. To apply linear control theory directly to design the magnetorheological damper controller, the Takagi–Sugeno fuzzy model analytically represents the segment erector model. In addition, a disturbance observer based on a Takagi–Sugeno fuzzy controller is proposed for this system. Both simulations and experiments validate the performance enhancement and stability of the controller. The results show that the acceleration of the segment erector was reduced by 59.6% and 32.1% in oblique wave excitation and random excitation, respectively, compared to a conventional passive damper. The proposed fuzzy controller and magnetorheological dampers have great potential in practical applications because they can significantly improve the performance of a segment erector.

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Active and Semi Active Vibration Isolation Systems Based on Magnetorheological Materials

Cited by 30 publications

References 5 publications

Role of Magnetorheological Fluids and Elastomers in Today’s World

Role of Magnetorheological Fluids and Elastomers in Today’s World

Research on semi-active vibration isolation system based on electromagnetic spring

Development and simulation of magnetorheological damper for segment erector vibration control

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