********
Analyses
********

.. 	toctree::
   :maxdepth: 1
   
   an_analyses/an_undamped_modal_analysis
   an_analyses/an_frequency_response_analysis
   an_analyses/an_tabular_static_analysis
   an_analyses/an_stiffness_analysis
   an_analyses/an_transient_analysis
   an_analyses/an_static_thermal
   an_analyses/an_transient_thermal
   an_analyses/an_frequency_response_thermal

==============
Common feature
==============

-----------
Rereduction
-----------

Model order rereduction is a specific feature of MORe. It allows MORe to perform the analyses
faster by droping parametric dependencies. This means, that the number of degrees of freedom 
is reduced during the analysis to the smallest amount necessary. 

The default setting for the analyses allowing rereduction is true. You can unselect the feature
by unticking *rereduce systems*. The following table lists the analyses that support
the rereduction feature.

===========================  ==========
Analysis                     Physics   
===========================  ==========
Modal analysis               Mechanical
Stiffness analysis           Mechanical
Frequency response analysis  Mechanical
Transient analysis           Mechanical
===========================  ==========

The speedup factor using the rereduction feature is shown in the following table. The times were measured
using the the RMT-MORe model which is used in our courses.

===========================  ===================  ================  ==============
Analysis                     Without rereduction  With rereduction  Speedup factor
===========================  ===================  ================  ==============
Frequency response analysis  30s                  3s                10
Modal analysis               7s                   1.5s              4.67
Transient                    433.15s              44.5s             10
===========================  ===================  ================  ==============

This gain in speed, however, has some drawbacks. Parametric dependencies are lost, which means the analyses
can only be performed at one specific operational point. Furthermore, no profile evaluation can be performed in the 
postprocessor.    

-------------------------
Linearize link properties
-------------------------

With the implementation of non-linear link properties MORe is able to simulate effects depending on the state of the links, such as displacement or velocity.
This increases the complexity of the system that has to be solved in the analyses. Tick the linearize link properties box to omit the non-linearities
in the simulation, which will decrease the simulation time. However, the non-linear effects will not be calculated. 

   
============
Context Menu
============

------------
Add analysis
------------

Add the selected analysis to the analyses folder.