Is it possible to include thermoelastic damping in a modal analysis? Iâ€™ve been able to successfully use plane223 and solid226 elements to model thermoelastic damping in a MEMS device. (In a very short period of time Iâ€™ve been able to duplicate and then extend the work of colleagues using another package.) As in the documented example, Iâ€™ve used a harmonic excitation input. However, I would also like to repeat the analysis by using the eigenvector solution as the strain energy input. (Similar to ref #1)
March 17, 2023 at 8:59 amFAQParticipant
Yes, you could use the damped modal solver accessed with MODOP,DAMP. This solver is quite slow, so we typically donâ€™t recommend it, however, the more robust and much faster damped modal solver accessed with MODOP,QRDAMP does not correctly handle the unsymmetric K matrix produced by thermo-elastic damping.
Introducing Ansys Electronics Desktop on Ansys Cloud
The Watch & Learn video article provides an overview of cloud computing from Electronics Desktop and details the product licenses and subscriptions to ANSYS Cloud Service that are...
How to Create a Reflector for a Center High-Mounted Stop Lamp (CHMSL)
This video article demonstrates how to create a reflector for a center high-mounted stop lamp. Optical Part design in Ansys SPEOS enables the design and validation of multiple...
Introducing the GEKO Turbulence Model in Ansys Fluent
The GEKO (GEneralized K-Omega) turbulence model offers a flexible, robust, general-purpose approach to RANS turbulence modeling. Introducing 2 videos: Part 1 provides background information on the model and a...
Postprocessing on Ansys EnSight
This video demonstrates exporting data from Fluent in EnSight Case Gold format, and it reviews the basic postprocessing capabilities of EnSight.
- The LS-DYNA equivalent of *MODEL_CHANGE card (in ABAQUS). Which keywords can be used to introduce(activate)/delete(deactivate) elements in the middle of a calculation (at user-specific time/load steps).
- The warning message is: “The maximum contact stiffness is too big. This may affect the accuracy of the results.” Why does large contact stiffness affect results accuracy?
- Contact Definitions in ANSYS Workbench Mechanical
- How to deal with “”Problem terminated — energy error too large””?”
- After Workbench crashes, how can I recover the project from a .mechdb file?
- How to display the color of each body based on the material in Mechanical?
- How to resolve “Error: Invalid Geometry”?
- Model has a large number of contacts – how to reduce them?
- Please explain the difference between Point Mass and Distributed Mass.
- How to locate an element of a particular ID number in Mechanical?