Residual vector loads in a SOL 103 Real Eigenvalue solution

You use the normal modes subcase named Subcase - Normal Modes, Residual Vector Loads to define dynamic loads in a SOL 103 Real Eigenvalues solution in Simcenter Nastran. The solver computes and stores the residual vectors from frequency-dependent load. This solution is valid for Structural or Vibro-Acoustic analyses.

With this subcase the solver computes the normal modes and natural frequencies with the residual vector loads method to include loads and enforced motion.

In the Subcase - Normal Modes, Residual Vector Loads subcase, create a Frequency Excitation Set, and then create a new Load Set, in which you can apply the following loads:

• Applied Load

• Enforced Displacement

• Enforced Velocity

• Enforced Acceleration

Note:

Loads created from Load Recipes are not supported in the Subcase - Normal Modes, Residual Vector Loads subcase.

You can apply Bolt Pre-Loads manually to each subcase. Bolt Pre-loads cannot be frequency-dependent and are not included in the residual vector computations.

How do I

Reduce response errors with residual vectors

Learn more

Dynamic analysis

Simcenter Nastran dynamics workflow

Specifying forcing frequencies for a frequency response analysis

Assigning frequencies from all loads to subcases

Limiting frequency response output to peak responses

Defining eigenvalue extraction data for Nastran analyses

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Residual vector loads in a SOL 103 Real Eigenvalue solution, Simcenter 3D 2021.1 Series

© 2020 Siemens

window.mainLanguage="en_US"

window.delivId=""

window.projectId=""

MathJax.Hub.Config({ TeX: { extensions: ["autoload-all.js"] }, tex2jax: { displayMath: [ ] }, "SVG": { scale: 125 } });