Grounded joints as boundary condition for Random Vibe analysis

- December 20, 2022 at 4:03 am
  
  Michael Dergance
  Subscriber
  
  Hello all,
  I'm trying to run a random vibration analysis in Ansys Mechanical 2022 R1 of a part that is constrained to ground through Bushing Joints which are used to capture bolt stiffness. The Random Vibration boundary condition requires a single constraint input and a grounded joint is not a constraint. Is there a way to get around this problem?
  
  In Nastran I would create my Bushing element between my part and a node with a fixed constraint, but Ansys doesn't seem to allow me to create a Bushing Joint between my part and something that I can apply a fixed boundary condition on. My workaround has been to bring in geometry that I can set as Rigid and then apply a fixed constraint to that and create Bushing body-to-body joints between the part I want to analyze and this rigid foundation part.
  
  Thanks!
- December 20, 2022 at 1:19 pm
  
  peteroznewman
  Subscriber
  
  That is a good way to model the constraint to ground and include a Bushing element.

Viewing 1 reply thread

You must be logged in to reply to this topic.

Ansys Innovation Space

Earth Rescue – An Ansys Online Series

The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.

Ansys Blog

Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.

Trending discussions