ВПЛИВ ПОДАТЛИВОСТІ ЛАНОК НА ККД МЕХАНІЗМІВ І МАШИН

Mihail PODRIGALO; Alexandr POLYANSKY; Nadezhda PODRIGALO; Maxim BAYTSUR

doi:10.36910/automash.v1i12.57

Mihail PODRIGALO Doctor of Technical Sciences, Head of Mechanical Engineering and Machine Repair Technology department, Kharkiv National Automobile and Highway University
Alexandr POLYANSKY Doctor of Technical Sciences, Professor of Mechanical Engineering and Machine Repair Technology department, Kharkiv National Automobile and Highway University
Nadezhda PODRIGALO Doctor of Technical Sciences, Associate Professor of Engineering and Computer Graphics department, Kharkiv National Automobile and Highway University
Maxim BAYTSUR Candidate of Technical Sciences, Associate Professor, Associate Professor of the Department of Mechanical Engineering and Machine Repair Technology, Kharkiv National Automobile and Highway University

DOI: https://doi.org/10.36910/automash.v1i12.57

Abstract

The paper proposes a new method for assessing the influence of link flexibility on the efficiency of mechanisms and machines. It has been established that the compliance of the elements of mechanisms and machines should be taken into account when assessing the internal energy loss and determining the efficiency. Analytical expressions are obtained that allow one to estimate the effect of reduced stiffnesses, moments of inertia, and friction forces on the internal energy loss in the mechanism. The relationship between the deformation of the links and the efficiency of the mechanisms and machines is determined. A new indicator has been proposed (elastic efficiency), which allows to calculate the cyclic and instantaneous efficiency of mechanisms and machines with ductile links, taking into account losses in displacement and speed due to the elastic deformation of the links.
Keywords: mechanism, non-uniform mode of movement, elastic deformation of links, energy loss, estimation of efficiency.

Influence of links flexibility on efficiency of mechanisms and machines

Abstract