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The Synthesis of Organic Oils Blended Magnetorheological Fluids with the Field-Dependent Material Characterization
Article

Dynamic Analysis of Sphere-Like Iron Particles Based Magnetorheological Damper for Waveform-Generating Test System

1
Division of Mechanical and Automotive Engineering, Kongju National University, Chungnam 31080, Korea
2
Agency for Defense Development, Daejeon 305-600, Korea
3
Department of Mechanical Engineering, Smart Structures and Systems Laboratory, Inha University, Incheon 22212, Korea
4
RMS Technology, Pungse Industrial Complex A17-6, Boseong-ri, Chungcheongnam-do 31217, Korea
*
Authors to whom correspondence should be addressed.
Int. J. Mol. Sci. 2020, 21(3), 1149; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21031149
Received: 30 November 2019 / Revised: 25 January 2020 / Accepted: 8 February 2020 / Published: 9 February 2020
In this study, a new double pulse waveform-generating test system with an integrated magnetorheological (MR) damper is proposed. Since the total shear stress of MR fluid can be varied according to the shape of particles, sphere-like iron particles-based MR fluid is filled into the MR damper. The test system consists of a velocity generator, three masses (impact, test, and dummy), a spring, and an MR damper. To tune the double pulse waveform profile, a damping force model is constructed to determine the fundamental parameters of the simulator. Then, the first and second shock waveform profiles are analyzed to solve the governing equation of motions representing the damping force and velocity. The mathematical model of the MR damper is formulated and applied to a simulator with a graphical user interface programmed using MATLAB. The effectiveness of the proposed simulator-featuring controllable MR damper is demonstrated by comparing the simulation and experimental results. View Full-Text
Keywords: Magnetorheological (MR) Fluid; MR Damper; Double Waveform-generating test System; Shock-Wave Profile Magnetorheological (MR) Fluid; MR Damper; Double Waveform-generating test System; Shock-Wave Profile
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MDPI and ACS Style

Oh, J.-S.; Shul, C.W.; Kim, T.H.; Lee, T.-H.; Son, S.-W.; Choi, S.-B. Dynamic Analysis of Sphere-Like Iron Particles Based Magnetorheological Damper for Waveform-Generating Test System. Int. J. Mol. Sci. 2020, 21, 1149. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21031149

AMA Style

Oh J-S, Shul CW, Kim TH, Lee T-H, Son S-W, Choi S-B. Dynamic Analysis of Sphere-Like Iron Particles Based Magnetorheological Damper for Waveform-Generating Test System. International Journal of Molecular Sciences. 2020; 21(3):1149. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21031149

Chicago/Turabian Style

Oh, Jong-Seok, Chang W. Shul, Tae H. Kim, Tae-Hoon Lee, Sung-Wan Son, and Seung-Bok Choi. 2020. "Dynamic Analysis of Sphere-Like Iron Particles Based Magnetorheological Damper for Waveform-Generating Test System" International Journal of Molecular Sciences 21, no. 3: 1149. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21031149

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