Track Frequency Response Evaluation

This example evaluates the frequency response of a track composed of TIM4 or TIM4eb (eb: elastic bedding) elements using the github example code.

Frequency response of the track for point excitation at mid-span or over the sleeper for changing ballast pameters:

Frequency response of the track for point excitation at mid-span or over the sleeper for changing pad pameters:

Frequency response observed at different DOFs of the track for point excitation at mid-span or over the sleeper compared for PT (TIM4) and EB (TIM4eb):

Frequency response observed at different DOFs of the track for point excitation at mid-span or over the sleeper compared for PT (TIM4) and EB (TIM4eb):

Modal response amplitude and shapes for mid-span excitation at peak response frequencies (peak picking on the FRF):

Modal response amplitude and shapes for excitation over the sleeper at peak response frequencies (peak picking on the FRF):