Dynamic Stress Analysis of Pipes

Here are a few links.

Others have given a good google link for resources.

I suggest that you classify the type of analysis you want to do:

A simpler one is natural frequency analysis followed by a harmonic analysis if you have rotating equipment on the line.

Then, there are more complicated ones in the order listed:

1. Static seismic analysis (also called g-load analysis)

2. Dynamic seismic analysis (also called response spectrum analysis)

3. More involved time-history analysis (for studying structural and piping response to a varying force as a function of time event), for e.g., a fluid hammer.

And others....

All of these are handled by the software these days as long as you understand the theoretical underpinnings along with the software assumptions.

I think the free software from vendors allows you to model and analyze for all these conditions. Caesar free copy will let you do only statics, no dynamics, and for piping 4" or smaller. Caepipe will allow everything, I think. Autopipe, again, same as Caepipe.

Good luck.