Interpretation of Frequency Response Analysis in Acoustics?

Dennis_20682
Dennis_20682 Altair Community Member
edited September 2024 in Community Q&A

Hello everyone,

i'm currently writing a thesis about acoustic simulation using optistruct. Currently i'm studying room acoustics. For this i'm looking at the solutions in frequency domain, but i still have trouble understanding the form of the optistruct solution. I'm trying to make sure, that i don't misunderstand the results.

  • The default complex filter in hyperview is set to mag*cos(wt-phi). This essentially gives me the real part of my acoustic pressure, which shows the acoustic pressure deviation over "time" at a particular frequency, is that right?
  • If so, to predict the noise perceived by a human, i have to calculate the root mean square pressure. Is there a card or something to calculate this directly in hypermesh/hyperview? Or do i have to calculate it by other means?
  • What is hyperview showing to me, if i set the complex filter to magnitude only?
  • Is it possible to create a live graph, that shows me the pressure at the current animation phase angle?

I'm thankful for every answer i can get

Answers

Welcome!

It looks like you're new here. Sign in or register to get started.

Welcome!

It looks like you're new here. Sign in or register to get started.