Description:
Working with Transport for NSW, investigating the relationship between 3-piece bogie warp and rail wheel squeal, EngAnalysis undertook an on-track test program to measure the instantaneous bogie warp, rotation and angle of attack.
Complexities due to the range of variables, degrees of freedom, and uncertainties were captured and defined by using a statistical approach to reporting. Video reports were developed to animate sections of the wagon’s journey. Bogie frame animations using measured data, alongside maps and time domain plots of warp, angle of attack, and bogie rotation visualise the results.
The results provided insight into the relationship between the bogie design characteristics and track conditions with the on-track bogie warp and angle of attack.
The measurement system used an array of world class amplifiers and signal conditioner units, power management systems, and communications that allowed remote supervision of the test run.