Calculation of piping system natural frequencies
Thread Content
How to use CAESARⅡ to calculate the natural frequency of a pipe segment? I seek advice from experts
Dynamic analysis in C2 can be taken into account
I’ve never done this before – how do you enter parameters in modal analysis? I’d really appreciate some guidance
Enter the operating conditions you need to calculate along with the frequency limit, and the calculation can be done. The default settings are fine for the rest. If you need to see the details of each option, pressing F1 will provide a detailed description of each one
In C2, click on dynamic analysis, select the Modal module, and in Control parameters, choose the condition with sequence number 1 for which you want to calculate the natural frequency. The coefficient of the sequence number is generally not changed (as there is no relatively accurate engineering value). Then it can be run. The other values can remain unchanged
In dynamic analysis within C2, the calculation of natural frequencies is the foundation of such analysis; it is sufficient to use the default settings. In cases of static analysis, if the nodes of certain elements are placed too far apart, it can lead to the loss of certain frequency levels. To calculate natural frequencies, it is best to refine the elements further
Using your method, I calculated that a single pipeline has 11 natural frequencies. Is this a calculation error, or do we need to select one value from these 11 natural frequencies?
Me too; I calculated it, but I can’t understand it, let alone use it.