Identification of Magnetorheological Layer Properties by Using Refined Plate Theory

Symmetry

Lyubomyr Sopilnyk¹  Orest Horbay²  Bohdan Diveyev²  Ruslan Humenuyk³  Yaroslav Sholudko³  Eugeniusz Koda⁴  Piotr Osinski⁴  Ivan Kernytskyy⁴ 

[1] Department of Administrative Law and Process, Lviv University of Business and Law, 79021 Lviv, Ukraine;Department of Transport Technologies, Lviv Polytechnic National University, 79000 Lviv, Ukraine;Faculty of Mechanical and Power Engineering, Lviv National Agrarian University, 30831 Lviv, Ukraine;Institute of Civil Engineering, Warsaw University of Life Sciences, 02-787 Warszawa, Poland;

关键词: magneto-rheological viscoelastomers;    sandwich plates;    vibration;    numerical modeling;    dynamic characteristics;   

DOI  :  10.3390/sym13091601

来源: DOAJ

【 摘 要 】

In this paper, the dynamic characteristics of sandwich plates with external rigid layers and an upper layer with magnetorheological properties (MR) are investigated. An analysis of the effect of the magnetic field on frequency and loss factor is presented. Vibration can be controlled by a magnetic-rheological viscoelastomer (MRVE), when used in sandwich plates. During vibration, MRVE exhibits an inhomogeneous complex module, which is controlled by an applied magnetic field and depends on the oscillation frequency. Using the dynamic equilibrium conditions, physical and kinematic relationships, and the partial differential equations for the conjugate transverse and longitudinal oscillations of a sandwich plate, are derived. This paper presents a new method for stress analysis that provides accurate stress distributions for multilayer plates subject to cylindrical bending. It uses an adaptive method that does not make strict assumptions about the plate model. Based on the depicted theoretical model, the deformations of each layer of the plate are accounted for, including both transverse shear deformations and transverse normal deformations where the thickness is concerned, and nonlinear displacement changes. The magnetorheological (MR) identification of an inner layer is carried out using refined plate theory and sandwich bending tests. Using combined methods, the possibility of determining the MRVE parameters robustly, is examined.

【 授权许可】

Unknown