AbdulahALMUTAIRI
Subscriber

Hi peter


Thanks for your grate support in helping solving this problem 


How do you excite the rail in the lab? 


*Using instrumented hammer ( excitation points are only at the top face of the rail )


Do you hit it with a hammer?


* YES 


How did you determine the frequency and mode shape in the lab?


* Using a laser vibrometer (capturing the response only in the vertical direction with its software ( it can give you : time domain or frequency domain )(FFT&FRF)


When are you going to add the spikes?


* The study considers just the rail resting on the sleepers without adding any spikes.