Abstract
Abstract : In recent years, many customers are willing to pay product or service that will last them for a long time without disturbing their day to day run of business. Reliability management for the physical resources has to turn out to be the highly important aspect of running the business, especially in the logistics industry. It is vital for the customer to have a full understanding of the product lifecycle for the purpose of knowing the lifespan of a purchased product. Reliability development is directly linked to the product lifecycle cost (PLCC). Unreliability motor unit causes PLCC to increase and it is affecting the manufacturer’s revenue profits and their reputation. This study presents an approach of identifying factors that increase the reliability of traction motors and reduces its life cycle costs by quantifying the reliability of motor units in the rail environment, collecting data of failure statistics. This stats will be used to determine defect severity and how they affect the overall reliability of the system when components failed. The determination of the quantitative pilot survey was to examine the concept reliability management such as mean time between failures (MTBF), failure rate, projected PLCC for the duration of the warranty period for traction motor of Railway locomotives. Original Equipment Manufacturers are odd to investigate the potential means of dropping PLCC and improve the reliability of the product. Components such as brushes, commutator, brush rings, bearing and winding were identified as the main failures that occur frequently according to the stats collected at company X. Those components were scrutinized using reliability techniques such as Root Causes Analysis (RCA), Failure Mode and Effective Analysis (FMEA) and MTBF to determine the causes and effects of parts failing during their operational period. The risk was measured in the process. The Reliability was defined as the probability that the product or system performs its intended function in a specified time and environmental conditions at without changes its physical characteristics. Reliability can be expressed as the possibility of attainment. It is measured in terms of Mean Time between Failures (MTBF). The definition is broken down into three points which are as follows: Probability–Consumers expect the probability to be 100 percent. “Useable” Intended Function –Goods needs to be suitable to carry out its main activity without failing. Stated Conditions –Goods should be able to withstand environmental conditions without error. The findings reveal that finite training for operators that assemble the motor unit takes places. The periodic inspection must be conducted to prevent failure from occurring. Customers should be included in the reliability management program to educate them on how to use the product efficiently without causing unnecessary faults. Find ways of identifying possible failure can save a lot of time and effort for both manufacturers and endusers.
M.Phil. (Engineering Management)