September 29, 2021 at 8:50 pmgryphusSubscriber
is it possible to change the damping value of a COMBIN14 (or similar) element in the substeps of a harmonic simulation?
Could this be used to simulate a frequency dependant damper? Or is there a different solution?September 29, 2021 at 10:11 pmpeteroznewmanSubscriberRayleigh Damping uses two constants, alpha and beta, to create Frequency Dependent damping. I recently wrote about that on September 24 in this discussion:
September 29, 2021 at 11:22 pmSeptember 30, 2021 at 2:35 pmgryphusSubscriberThanks Benjamin!
That was exactly what I was looking for.
Since the real constants you posted only list harmonic, transient and static, does this mean the frequency dependancy does not work for modal analysis?
September 30, 2021 at 9:38 pmBenjaminStarlingSubscriberThis is correct. A modal analysis has no context of what frequencies will be available until the extraction is complete, and the stiffness and damping of the model determines what modes/frequencies are available.
January 29, 2022 at 3:37 pmBalochSubscriberIs it possible to model a non-linear spring in terms of displacements? Meaning spring's damping and stiffness should vary based on displacements.
Viewing 5 reply threads
Ansys Innovation Space
- You must be logged in to reply to this topic.
Simulation World 2022
Earth Rescue – An Ansys Online Series
Ansys BlogTrending discussions
- How to calculate the residual stress on a coating by Vickers indentation?
- Solver Pivot Warning in Beam Element Model
- An Unknown error occurred during solution. Check the Solver Output…..
- Errors – Reinforced Concrete Beam
- whether have the difference between using contact and target bodies
- The solver engine was unable to converge on a solution for the nonlinear problem as constrained.
- Massive amount of memory (RAM) required for solve
- Saving & sharing of Working project files in .wbpz format
- Cannot apply load on node
- Colors and Mesh Display
Top Rated Tags