Dynamic analysis of magnetorheological damper incorporating elastic ring in coupled multi-physical fields

Wang, Jun; Zhang, Xuening; Liu, Yunfei; Qin, Zhaoye; Ma, Liang; Hong, Fangfang; Chu, Fulei

doi:10.1016/j.ymssp.2023.111040

Cited by 23 publications

(2 citation statements)

References 51 publications

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“…In addition to smart materials deformation-driven high speed valves, researchers have applied magnetorheological (MR) fluids to developing advanced on/off valves following three typical operational mode: flow mode, squeeze mode, and shear mode [12]. High-speed on/off valves based on flow mode is an intuitive application, such as magnetic rheological fluid (MRF) dampers and valves, where MRF has served as flow medium filling the damper or valve chamber [13][14][15][16][17][18]. MRF valves can achieve extremely fast on/off switching through applying/removing external electromagnetic field, but they are always accompanied by a pressure drop about 4 MPa and their nominal flow rate is rather small (<8 l min −1 ) [13,[16][17][18], which are more suitable for use as damping elements in mechanical systems.…”

Section: Introductionmentioning

confidence: 99%

Design and performance analysis of high-speed on/off valve based on energy-coupled actuator

Dai,

Yang,

Xiong

2024

Smart Mater. Struct.

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The development digital hydraulics demands higher performance on high-speed on/off valves. In order to fully exploit the energy saving advantages of digital hydraulics, advanced high-speed valves are expected to possess a fast response and a large nominal flow rate simultaneously. Energy-coupled-actuator (ECA) utilizes the shear working mode of magnetic rheological fluid (MRF) to achieve reciprocating motion of the valve spool through the coupling/decoupling of a pair of disks and a translational piece and its driving force is not affected by the valve spool’s position. The reported advantages of ECA meets the design requirements of actuators for high-speed on/off valve. This study gives the detailed design proposal of high-speed valve based on ECA (ECAV). The work also established a multi-physics coupled model for ECAV, calculated the key parameters of the valve driving system, and predicted the switching performance of ECAV. Finally, a prototype of ECAV with updated sealing solution between the actuator and valve block was fabricated and experimental tested. The results indicate that for current ECAV prototype successfully established 40L/min@5bar (1.5mm stroke) using response time less than 7ms. Moreover, the prototype only consumed 14ms to reach a long stroke of 5mm with a significantly increased ratio of stroke over response time.

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Section: Introductionmentioning

confidence: 99%

Design and performance analysis of high-speed on/off valve based on energy-coupled actuator

Dai,

Yang,

Xiong

2024

Smart Mater. Struct.

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“…The Analytic Hierarchy Process (AHP) is a widely used multi-criteria decision-making method that determines the weight of each criterion and the priority of each alternative solution in a structured manner through pairwise comparisons. This method has been widely used in many fields [18][19][20][21][22]. On the contrary, some limits have been found for the traditional AHP approach [23]: (1) the consistency of the judgment matrix is very costly to achieve;…”

Section: Introductionmentioning

confidence: 99%

Research on Multi-Objective Optimization on Explosion-Suppression Structure-Nonmetallic Spherical Spacers

Liu,

Yu,

Zhang

et al. 2024

Fire

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Intense burning phenomena (fire disasters) need to be prevented in the combustible gas utilization and transportation processes to ensure industrial safety. Nonmetallic spherical spacers (NSSs) have been investigated and applied in lots of explosive atmospheres to prevent explosion execution in a confined space. In this work, a novel fuzzy-based analytic hierarchy process (FAHP) is developed to take into account the uncertainty in decision-making and effectively solve the problem of factor weight allocation in multi-objective optimization. Optimal Latin Hypercube Design (Opt LHD), Chebyshev Orthogonal Polynomials (COP), and Adaptive Simulated Annealing (ASA) were combined. A multi-objective optimization method is proposed for the structural parameter optimization problem on NSSs in order to achieve conflicting multiple-objective optimization of low displacement rate and minimal deformation. That is to say, the small volume (low displacement rate) and high explosion-suppression performance (minimal deformation) of NSSs were optimized simultaneously. The results show that, compared with the original NSS model’s deformation (2.85 mm) and displacement rate (3.63%), the optimized NSSs with weight allocation had optimized the deformation by 12.98% and displacement rate by 6.1%. Compared with the optimized design model of NSSs without weight allocation with a deformation of 2.75 mm and a displacement rate of 3.48%, the deformation has been optimized by 9.82%, and the displacement rate has been optimized by 2.0%. It was verified that the proposed method is effective. At the same time, it was verified that the suppression effect of NSSs can be enhanced by changing the shape of the NSS spacer reasonably by experimental verification.

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Large deformation induced deflection analysis of debonded layer structure under hygro-thermo-mechanical loading: a micromechanical FE approach

Hirwani,

Akkasali,

Kumar

et al. 2024

Arch Appl Mech

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Dynamic analysis of magnetorheological damper incorporating elastic ring in coupled multi-physical fields

Cited by 23 publications

References 51 publications

Design and performance analysis of high-speed on/off valve based on energy-coupled actuator

Design and performance analysis of high-speed on/off valve based on energy-coupled actuator

Research on Multi-Objective Optimization on Explosion-Suppression Structure-Nonmetallic Spherical Spacers

Large deformation induced deflection analysis of debonded layer structure under hygro-thermo-mechanical loading: a micromechanical FE approach

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