Torsional vibrations of shafts of mechanical systems

International Conference on Mechanical Engineering, Automation and Control Systems 2017

机械制造;无线电电子学;计算机科学

Gulevsky, V.A.^1 ; Belyaev, A.N.^1 ; Trishina, T.V.^1

Voronezh State Agricultural University Named after Emperor Peter the Great, Michurina St. 1, Voronezh

394087, Russia^1

关键词: Equivalent rigidity;    Equivalent stiffness;    Mechanical oscillations;    Mechanical systems;    Moments of inertia;    Oscillating systems;    Oscillatory process;    Torsional vibration;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/327/4/042041/pdf
DOI  :  10.1088/1757-899X/327/4/042041

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The aim of the research is to compare the calculated dependencies for determining the equivalent rigidity of a mechanical system and to come to an agreement on the methods of compiling dynamic models for systems with elastic reducer couplings in applied and classical oscillation theories. As a result of the analysis, it was revealed that most of the damage in the mechanisms and their details is due to the appearance of oscillations due to the dynamic impact of various factors: shock and alternating loads, unbalanced parts of machines, etc. Therefore, the designer at the design stage, and the engineer in the process of operation should provide the possibility of regulating the oscillatory processes both in details and machines by means of creating rational designs, as well as the use of special devices such as vibration dampers, various vibrators with optimal characteristics. A method is proposed for deriving a formula for determining the equivalent stiffness of a double-mass oscillating system of a multistage reducer with elastic reducer links without taking into account the internal losses and inertia of its elements, which gives a result completely coinciding with the result obtained by the classical theory of small mechanical oscillations and allows eliminating formulas for reducing the moments of inertia of the flywheel masses and the stiffness of the shafts.