Dear All,

I did a dynamic analysis and the lowest frequency i got was 4.54Hz at T1=232C.
Now, when I change the temperature to T1=191C the frequency is 4.85Hz.
Then I again change the temperature to T1=330C and the frequency is 4.5Hz.
I then went lower to T1=175C and the frequency is 4.85Hz.

No other parameters was changed, only the temperature.

The question is does the change in temperature affects the frequency experienced by the piping system? If it does, is there equation or formula that can justify?

I have been searching for the answer for this for a long time now and had little to no result.

Regards,
Bryan