

March 17, 2023 at 9:00 amFAQParticipant
In an ANSYS random vibration analysis, rootmeansquare (RMS) values are referred to as “onesigma” values. So, the RMS acceleration is the onesigma acceleration. “G” refers to the acceleration expressed in terms of the gravitational acceleration. So “GRMS” is the onesigma acceleration in terms of G. In /POST1, the calculated onesigma accelerations are stored in load step 5. To obtain the onesigma acceleration in terms of G (GRMS), simply divide the onesigma acceleration values by the gravitational acceleration constant using the SET command. /post1 set,5,1,1/386.4 ! for BIN unit system

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 HighMounted Stop Lamp (CHMSL)
This video article demonstrates how to create a reflector for a center highmounted 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 KOmega) turbulence model offers a flexible, robust, generalpurpose 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.
 Why is damped frequency is lower than undamped frequency with viscous damping but larger with structural damping?
 How can I change the normalization method of the vibration modes from modal analysis?
 Why does the prestress from Static analysis does not add up to the stress in Random Vibration analysis?
 A Shock absorber is represented as spring element with damping constant. Modal analysis is performed using Reduced Damped (QRDAMP) solver. How to perform a Modal super position harmonic or transient analysis further ?
 In the results of a modal analysis, how can I define that a frequency is an output parameter ?
 What does the warning “Diagonal of the mass matrix is missing in file” indicate when using RSTMAC command?
 Can you output the frequency response for a total deformation?
 What is mass moment of inertia in Point Mass used for?
 In a Modal Analysis of Mechanical, why aren’t the Participation Factors Summary under Solution Information displayed?
 If the stress is higher than ultimate strength in Response Spectrum Analysis, does this mean that the component may break or yield?
© 2023 Copyright ANSYS, Inc. All rights reserved.