Deterioration Analysis of a Diesel Shunting Locomotive for Safety Assessment

초록

The deterioration of a shunting locomotive was characterized for the safety evaluation. The locomotive has been used for shunting works in steel industry, and in this paper, several engineering characterization techniques for the deterioration evaluation of a shunting locomotive were introduced, and the analysis results have been presented. Unlike other rolling stocks in railway applications, the diesel shunting locomotive is composed of major components such as diesel engine, transmission, gear box, brake system, etc., which cover more than 70 percent of the total price of the locomotive. Therefore, in this investigation, each part of major components in the diesel locomotive was analyzed in terms of the degree of deterioration. The performance evaluation tests were performed on the diesel engine and gear box, and precision inspection was conducted on each part of transmission to provide the current wear information. Also, corrosion test and nondestructive evaluation techniques were employed to demonstrate the wear status of coachwork and bogie parts in locomotive. Through the current investigation, the following results have been obtained