Search academic texts

Information × Registration Number 0222U002115, 0120U104906 , R & D reports Title Durability and thermoelectromechanical behavior of inelastic structural elements with piezoelectric sensors and actuators under forced vibrations popup.stage_title Head Karnaukhov Vasil H., Доктор фізико-математичних наук Registration Date 10-02-2022 Organization Institute of Mechanics. S.P. Tymoshenko of the National Academy of Sciences of Ukraine popup.description2 Using Kirchhoff-Love and S.P.Tymoshenko hypotheses for mechanical variables which are supplemented by adequate assumptions for electrical and temperature values for shells with piezoelectric sensors and actuators the equations of harmonic vibrations, constitutive relations for mechanical efforts and moments, normal component of electrical induction vector and the heat conduction equation with nonlinear dissipative function are presented. The obtained system of solving equations is supplemented by the criterion condition of the admissible value of the vibroheating temperature in the local volume of the system. On the basis of this model, the problem of axisymmetric resonant vibrations and dissipative heating of a shear malleable viscous-elastic cylindrical shell with piezoelectric sensors is numerically solved. The influence of transverse shear deformation, heat transfer conditions and temperature dependence of electromechanical properties of materials on the amplitude- and temperature-frequency characteristics of forced shell vibrations has been studied. Using the criterion of durability on admissible values of the maximum temperature of vibroheating, durability of system at extreme values of amplitudes of loading and parameters of heat exchange is investigated. Product Description popup.authors Zhuk Yaroslav O. Zinchuk Liubov P. Karnaukhov Vasyl H. Kyrychok Ivan F. Kozlov Volodymyr I. Orlenko Serhii P. Petrenko Nataliia V. Senchenkov Ihor K. Chervinko Olha P. popup.nrat_date 2022-03-09 Close