Non-destructive testing of train axle using ultrasonic phased arrays

• Main Author: Muhammad Khalis Muhammad Rizauddin
• Other Authors: Fan Zheng, David
• Format: Final Year Project
• Language: English
• Published: Nanyang Technological University 2020
• Subjects: Engineering::Mechanical engineering
• Online Access: https://hdl.handle.net/10356/140934
• Institution: Nanyang Technological University

In the past few years, there is a growing demand for railroad transportation. Similarly, Singapore public transport system is expanding as this tiny island nation becomes more connected through its rail system. As such, with emerging train stations and lines, the demand for shorter inspection intervals and increased in stress exposure to train parts such as the train axles. It is of paramount importance that the train axle inspection techniques be fast and accurate. The failure of an axle can lead to potential derailment of the train. Train derailment may result in damages to property, incur large repair cost, huge and long halt in train services and worse of all, loss of lives. The main objective of this research is to explore and develop an automated ultrasonic inspection technique to prevent such failures. One of the most used technique is the Phased Array Ultrasonic Testing (PAUT). In this project, the focus has been on the application of PAUT on train axles and the development of a PAUT device which automation capabilities. The device for PAUT automation has been machined and subjected to a series of experiments. Experiments have used PAUT techniques to identify target defects on the train axle where the effectiveness of the device will be validated. It is crucial that research and development of more advanced PAUT techniques continues. This is to further the technological advancement in the railroad transportation industry and all industries where Non-Destructive Testing is applied. With continuously growing future demands, safety must always remain of utmost importance. Unfortunately, one part of this report and project could not be completed due to the Covid 19 situation present in Singapore from March 2020 to June 2020.