Hi,

I am currently in my final year at university and for my dissertation I am investigating the propagation of flexural waves in a 2D structure with varying thickness. Currently, I am finding it difficult to find the reflection coefficient using COMSOL. At the moment I am modelling a uniform plate in a frequency domain with a range from 10 Hz to 10,000 kHz with an added excitation point from a point load, I am using a uniform plate so that I can validate a method of finding the reflection coefficient as it should be equal to 1 for a uniform plate.

I have attached the files for the uniform plate, if anybody has any ideas or solutions for my issue I would be hugely grateful.

Thank you