Дослідження відмов колісних пар тепловозів в експлуатації із застосуванням FMEA-методології

Abstract

UA: У статті проведено аналіз видів і наслідків відмов і дефектів колісних пар тепловозів. Для кожного виду відмови та дефекту розраховано значення пріоритетного числа ризику. Для найбільш критичного дефекту запропоновано заходи зі зниження потенційних збитків.

EN: Failure Modes and Effects Analysis (FMEA) is methodology for analyzing potential reliability problems early in the development cycle, where it is easier to take actions to overcome these issues & thereby enhancing reliability through design. A process or a design should be analyzed first before it is implemented and also before operating a machine the failure modes and effect must be analyzed critically. This paper analyzes the types of failure mode and effects wheelsets locomotives. The characteristic of defect of wheelsets in use. According to statistics, the most frequently worn and damaged bandage of wheelset. By using expert techniques and special tables determines the rank of the effects of defect free, the frequency of occurrence and detectability. Prioritization is done on the basis of risk priority numbers. The highest values of the priority of risk are determined for a thin bandage of wheelset. Declines are proposed due to the introduction of automated controls state. This results in major cost savings in terms of quality features. The FMEA is a proactive approach to solve potential failure modes.