Simulation of Vibration Resistance and the Ways for Its Improvement on Designing Multistage Constructions
Aleksandr Shayko-Shaykovky
Department of Engineering, Yuriy Fedkovych Chernivtsi National University, Chernivtsi, Ukraine
Aleksandr Bogorosh
Department of Applied Physics, Ukrainian National Technical University of Kyiv Polytechnic Institute, Kyiv City, Ukraine
Algimantas Bubulis
Institute of Mechatronics, Kaunas University of Technology, Каunas, Lithuania.
Nikolaj Visniakov *
Department of Materials Science and Welding, Faculty of Mechanics, Vilnius Gediminas Technical University, Vilnius, Lithuania
Andzela Sesok
Department of Biomechanics, Faculty of Mechanics, Vilnius Gediminas Technical University, Vilnius, Lithuania
*Author to whom correspondence should be addressed.
Abstract
The paper considers the possibility of a theoretical definition of the natural frequencies of vibrations of thermoelectric coolers with a different number of stages and different configurations in the design phase. Determination of natural frequencies of vibrations in parallel was carried out for products, taking into account the damping produced by a number of structural elements as well - without taking into account the damping capacity of the solder layers at the ends of thermocouples. The analysis and comparison of the theoretical results were carried out.
The results of the calculation determining the natural vibration frequencies of thermoelectric coolers (TEC) through a system of Lagrange equations of the 2nd kind were compared with the calculated values obtained by using the method of electrodynamic analogies.
Keywords: Resonance, the natural frequencies of vibration damping