Dear Richard / Dave ,

I have a query regarding Time History analysis for water hammer .In Caesar II we have two options by which we can enter the Time Force profile ( Time History).
1. I can enter data in form of time force profile directly through the "Enter/Edit Spectra Data Tab" .
2. In second option we can feed data by converting the data from the form of Time force profile to Frequency -DLF profile with the help of DLF spectrum generator.

Which method is suitable for Time history analysis ????.
I think only first method(through ENTER/EDIT SPECTRA DATA TAB) is valid for time history analysis. As in the second method the Time-Force profile is converted in to DLF -Frequency profile . During time history analysis Caesar II consider it as FORCE multiplier-Time profile data i.e the frequency as obtained in response spectrum is considered as time in milli-second by Caesar II for time history analysis .
I think this is wrong it will represent the wrong results because frequency by mistaken is considered as time .

Awaiting valuable response ,