Journal ArticleDOI
Geometry optimization of MR valves constrained in a specific volume using the finite element method
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In this article, the geometric optimal design of magnetorheological (MR) valves in order to improve valve performance, such as pressure drop, is presented, where the optimization problem is to find the optimal geometric dimensions of MR valves constrained in a specific volume.Abstract:
This paper presents the geometric optimal design of magnetorheological (MR) valves in order to improve valve performance, such as pressure drop. The optimization problem is to find the optimal geometric dimensions of MR valves constrained in a specific volume. After describing the configuration of MR valves, their pressure drops are investigated on the basis of the Bingham model of an MR fluid. Then, the valve ratio, which is an objective function, is derived by considering the field-dependent (controllable) and viscous (uncontrollable) pressure drops of the MR valves. Subsequently, the optimization procedure using a golden-section algorithm and a local quadratic fitting technique is constructed via a commercial finite element method (FEM) parametric design language. From the constructed optimization tool, optimal solutions of the MR valves, which are constrained in a specific cylindrical volume defined by its radius and height, are calculated and compared with analytical ones. In addition, several different types of MR valves are optimized in the same specific volume and results are presented.read more
Citations
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Magnetorheological fluid dampers: A review on structure design and analysis
TL;DR: The magnetorheological fluid dampers could offer an outstanding capability in semiactive vibration control due to excellent dynamical features such as fast response, environmentally robust characteristics, large force capacity, low power consumption, and simple interfaces between electronic input and mechanical output as mentioned in this paper.
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A review on the simulation and modeling of magnetorheological fluids
TL;DR: In this article, the magnetorheological fluids are classified as smart materials with controllable rheological properties, and the fast growing application of magnetors in recent years has increased the...
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Optimal design of an automotive magnetorheological brake considering geometric dimensions and zero-field friction heat
Quoc Hung Nguyen,Seung-Bok Choi +1 more
TL;DR: In this article, an optimal design of a magnetorheological (MR) brake for a middle-sized passenger car which can replace a conventional hydraulic disc-type brake is presented.
Journal ArticleDOI
Optimal design of a vehicle magnetorheological damper considering the damping force and dynamic range
Quoc Hung Nguyen,Seung-Bok Choi +1 more
TL;DR: In this article, an optimal design of a passenger vehicle magnetorheological (MR) damper based on finite element analysis is presented, which is constrained in a specific volume and the optimization problem identifies the geometric dimensions of the damper that minimize an objective function.
Journal ArticleDOI
Optimal design of magnetorheological valves via a finite element method considering control energy and a time constant
TL;DR: In this paper, the authors presented an optimal design for magnetorheological (MR) valves for minimizing the control energy to be applied to coils to control the pressure drop of the valves.
References
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Journal ArticleDOI
Nondimensional analysis of semi-active electrorheological and magnetorheological dampers using approximate parallel plate models
Norman M. Wereley,Li Pang +1 more
TL;DR: In this article, the authors developed nonlinear quasi-steady electrorheological and magnetorheological damper models using an idealized Bingham plastic shear flow mechanism, where damping forces are developed in an annular bypass via Couette (shear mode), Poiseuille (flow mode) flow, or combined Couette and Poiseiulle flow (mixed mode).
Journal ArticleDOI
Control and Response Characteristics of a Magneto-Rheological Fluid Damper for Passenger Vehicles:
Hwan-Soo Lee,Seung-Bok Choi +1 more
TL;DR: In this article, a semi-active magnetorheological (MR) fluid damper is proposed for a full-car suspension, which can be continuously controlled by the intensity of the magnetic field.
Journal ArticleDOI
Design of a High-Efficiency Magnetorheological Valve:
Jin-Hyeong Yoo,Norman M. Wereley +1 more
TL;DR: In this paper, a meso-scale magnetorheological (MR) valve with an annular gap < I mm was designed to minimize the size of the valve while maintaining the maximum performance of the MR effect.
Journal ArticleDOI
Volume-constrained optimization of magnetorheological and electrorheological valves and dampers
TL;DR: In this article, a case study of magnetorheological and electrorheological (ER) valve design within a constrained cylindrical volume is presented, and the performance of volume-constrained MR valves against similarly constrained ER valves is compared with both analytical and numerical techniques.
Journal ArticleDOI
Finite Element Analysis and Simulation Evaluation of a Magnetorheological Valve
Ningqun Guo,Hejun Du,Weihua Li +2 more
TL;DR: In this paper, an optimised design of a high-efficiency magnetorheological (MR) valve using finite element analysis is presented, which is composed of a core, a wound coil, and a cylinder-shaped flux return.
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