integrator HHT Example for PyLiq1?

[bayram_aygun]

Hi,

To avoid the problem of high frequencies of the dynamics response in my soil model I need to use Hilbert-Hughes-Taylor (HHT) integrator. As you might know Newmark method is normally not used due to possibilities of oscilations in the p-y springs (Boulanger et all. 2003)

Very little is said about HHT in the manual and I found no sample codes with HHT in it.

Can anybody direct me to reference code excerpts and enlighten me about the usage of this integrator and its parameters?

Thanks,

P.S: By the way, I turn the "Notify me when a reply is posted" button but I never get a notification email from OpenSees, why is that?