Response Spectrum Analysis Study
Response spectrum analysis is used for computing an approximation of the structural response to transient, nondeterministic events, such as earthquakes or shocks.
The
Response Spectrum Analysis
study is mainly an entry point when adding studies. What you actually get when you add such study is an
Eigenfrequency
study step together with a
Response Spectrum
node under
Definitions
.
The actual response is computed on demand during result evaluation, using the computed eigenfrequencies and modes. The settings for the evaluation are done in the
Response Spectrum 2D
and
Response Spectrum 3D
datasets.
If your response spectrum evaluation requires inclusion of missing mass correction, you need also to compute a set of stationary load cases. To set up that analysis, use the
Create missing mass correction study
button (
) on the header of the
Response Spectrum
section the in the
Response Spectrum
node settings.
•
See
Performing a Response Spectrum Analysis
for a detailed description of how to work with response spectrum evaluations.
•
The theory is described in
Response Spectrum Analysis Theory
.
•
The settings for the special datasets are described in
Response Spectrum 2D and Response Spectrum 3D
in the
COMSOL Multiphysics Reference Manual
.
•
The
Response Spectrum
node is described in the
COMSOL Multiphysics Reference Manual
.
•
Earthquake Analysis of a Building
: Application Library path
Structural_Mechanics_Module/Dynamics_and_Vibration/building_response_spectrum
•
Shock Response of a Motherboard
: Application Library path
Structural_Mechanics_Module/Dynamics_and_Vibration/motherboard_shock_response
) on the header of the Response Spectrum section the in the Response Spectrum node settings.
