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Modeling harmonic pressure with mean-value larger than zero

Modeling harmonic pressure with mean-value larger than zero

Modeling harmonic pressure with mean-value larger than zero

(OP)
Hi all,

I'm trying to model (in ANSYS 14 classic) a hose with an internal harmonic pressure with a mean pressure larger than zero. The pressure could be something like p_{total}=p_{mean}+p_{amplitude}*cos(omega*t). I know that one should activate the "include prestress effects" for both the static and harmonic analyses as it says in the manual. But it seems that the comstant pressure also becomes harmonic in the harmonic analysis.
Is there some way of forcing p_{mean} to stay constant while superimposing the pressure p_{amplitude}*cos(omega*t)?

Thanks,
Dubbelkex

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