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A Feedback Control Sensing System of an Electrorheological Brake to Exert a Constant Pressing Force on an Object.
Sensors (Basel)
August 2023
Department of Mechanical Engineering, The State University of New York, Korea (SUNNY Korea), Incheon 21985, Republic of Korea.
The paper presents the application of a strain gauge sensor and a viscous brake filled with an electrorheological (ER) fluid, which is a smart material with controlled rheological properties, by an electric field to the fluid domain. For experimental tests, a cylindrical viscous brake was designed. The tests were carried out on a test stand especially prepared for this purpose and suitable for the examination of the impact of the rotational speed of the input shaft and the value of the electric voltage supplied to the viscous brake on pressing forces, taking into account the ER fluid temperature and brake fluid filling level.
View Article and Find Full Text PDFCorrection: Efficient and stable electrorheological fluids based on chestnut-like cobalt hydroxide coupled with surface-functionalized carbon dots.
Soft Matter
May 2022
Materials Genome Institute, Shanghai University, Shanghai, 200444, China.
Correction for 'Efficient and stable electrorheological fluids based on chestnut-like cobalt hydroxide coupled with surface-functionalized carbon dots' by Yudai Liang , , 2022, DOI: 10.1039/D2SM00176D.
View Article and Find Full Text PDFCorrection to Electrorheological Sensor Encapsulating Microsphere Media for Plague Diagnosis with Rapid Visualization.
ACS Sens
May 2022
Division of Pulmonary Medicine, Department of Internal Medicine, Taipei Medical University Hospital; Division of Thoracic Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 106, Taiwan.
Induced permittivity increment of electrorheological fluids in an applied electric field in association with chain formation: A Brownian dynamics simulation study.
Phys Rev E
June 2021
Research Centre for Engineering Sciences, University of Pannonia, Egyetem u. 10, Veszprém, 8200, Hungary and Institute of Mechatronics Engineering and Research, University of Pannonia, Gasparich Márk u. 18/A, Zalaegerszeg, 8900, Hungary.
We report Brownian dynamics simulation results for the relative permittivity of electrorheological (ER) fluids in an applied electric field. The relative permittivity of an ER fluid can be calculated from the Clausius-Mosotti (CM) equation in the small applied field limit. When a strong field is applied, however, the ER spheres are organized into chains and assemblies of chains in which case the ER spheres are polarized not only by the external field but by each other.
View Article and Find Full Text PDFElectrostatics of charged dielectric spheres with application to biological systems.
Phys Rev E Stat Nonlin Soft Matter Phys
June 2006
National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, 8600 Rockville Pike MSC 6075, Bethesda, Maryland 20894, USA.
Because electrostatic forces are crucial in biological systems, molecular dynamics simulations of biological systems require a method of computing electrostatic forces that is accurate and rapid. We propose a surface charge method, apply it to a system of arbitrary number of charged dielectric spheres, and obtain an exact solution for an arbitrary configuration of the spheres. The precision depends only on the number of terms kept in a series expansion and can therefore be controlled at will.
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