Improving the durability of machine parts connections

Author:

Apazhev A K,Shekikhachev Y A,Egozhev A M,Shekikhacheva L Z,Egozhev A A

Abstract

Abstract Durability is the most significant component of reliability, which, depending on the purpose of the object and its operating condition, also includes indicators of failure-free, maintainability and preservation separately or a combination of them (both for the object and for its parts). Improving the strength and durability of machine parts connections, in particular, agricultural, at the present stage is achieved by various methods, the main of which is the method of statistical analysis of connections loading. This method is based on the theory of fatigue damage accumulation followed by strength calculation. The known calculation methods of durability of agricultural machines parts, based on this theory, often involve the use of data on the operation of the machine parts and units, its speed, the surface relief processed by the machine in real operating conditions, as well as duration of the impact of various loads (dynamic, peak or shock). Currently, agricultural producers have increased requirements for the machines used. They are not satisfied with agricultural machines that are often idle for a long time as a result of malfunctions and failures. In critical periods of operation this leads to a decrease in the quality of work, productivity and, ultimately, crop yields. In this regard, it is necessary to develop new agricultural equipment that will be characterized by high operational reliability.

Publisher

IOP Publishing

Subject

General Medicine

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