This method can be used to obtain eigenvalues.
This algorithm is an excellent tool for the dynamic analysis of a structure, and when the dynamic behavior of a designed structure is known.
The basis reduction method involves solving the equation system of eigenvalue problems Kφ - λBφ = 0. This is the Ritz method and since it is not an iterative approach, precision is not verified. The tol parameter provided in the http://beehive.autodesk.com/community/service/rest/cloudhelp/resource/cloudhelpchannel/guidcrossbook/jsonp?v=2016&p=RSAPRO&l=ENU&guid=GUID-AD28B8C7-F614-4A51-9A8B-2E1FA66D13F6/GUID-E9E48C1D-CC78-45F2-A09C-F5DEB642A5B1 dialog is ignored.
In this method it is required to define the master degrees of freedom (MDOF) which enable acquiring a reduced model. The method allows unneeded degrees of freedom to be excluded from the reduced model, leading to a significantly smaller system of equations.
Calculations
The calculations dialog for the Basis Reduction method shows the following phases:
See also: