Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 09, 2018 - September 12, 2018
To simulate squeal noise at curved sections in railway lines and develop measures for the noise, prediction numerical model is required. In this study, numerical model for the disk and roller, which modeled and simplified a railway wheel and a rail, is developed. The model is based on wheel vibration derived from modal analysis and the forces between the disk and roller. The vibration related to squeal noise is occurred due to feedback between the wheel vibration and the forces. By using the numerical model, the wheel vibration related to squeal noise are simulated and the peaks in the frequency domain are observed. These results agree with the experimental results. This model has potential to simulate the squeal noise. The model includes parameters related to wheel vibration characteristics, rail vibration characteristics and friction forces between a rail and a wheel. These indicate that some measures on both wheel and rail may reduce the squeal noise.
