Physical and Constructive (Limiting) Criterions of Gear Wheels Wear

9th International Conference on Tribology

Fedorov, S.V.^1

Kaliningrad State Technical University, Department of Theory of Mechanisms and Machines and Machine Parts, Kaliningrad

236022, Russia^1

关键词: Dissipative process;    Elastic-plastic deformation;    Elastoplastic deformation;    energy;    evolution;    Friction structure;    Generalized models;    Physical criterions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/295/1/012038/pdf
DOI  :  10.1088/1757-899X/295/1/012038

来源: IOP

【 摘 要 】

We suggest using a generalized model of friction - the model of elastic-plastic deformation of the body element, which is located on the surface of the friction pairs. This model is based on our new engineering approach to the problem of friction-triboergodynamics. Friction is examined as transformative and dissipative process. Structural-energetic interpretation of friction as a process of elasto-plastic deformation and fracture contact volumes is proposed. The model of Hertzian (heavy-loaded) friction contact evolution is considered. The least wear particle principle is formulated. It is mechanical (nano) quantum. Mechanical quantum represents the least structural form of solid material body in conditions of friction. It is dynamic oscillator of dissipative friction structure and it can be examined as the elementary nanostructure of metal's solid body. At friction in state of most complete evolution of elementary tribosystem (tribocontact) all mechanical quanta (subtribosystems) with the exception of one, elasticity and reversibly transform energy of outer impact (mechanic movement). In these terms only one mechanical quantum is the lost - standard of wear. From this position we can consider the physical criterion of wear and the constructive (limiting) criterion of gear teeth and other practical examples of tribosystems efficiency with new tribology notion - mechanical (nano) quantum.