RamSeries manual
This section treats advanced options for analysis and postprocessing.
The option Solver type enables the user to choose the equation solver. The options are:
· Solver tolerance: When two successive iterations do not differ by more than the specified tolerance, the solver will halt.
· Solver tolerance minimum: If the solver arrives at itsmaximum iteration number, this tolerance will decide if results are accepted.
· Max. iterations: maximum number of iterations permitted.
Normally, the best option is to choose Automatic. Advanced users should choose the Skyline solver if it does not take too much memory and Sparse solver for big problems depending on the available RAM memory.
The eigensolver used in the analysis of frequencies and modes of vibrations is the subspace iterative method. The option Eigensolver max iterations indicates the maximun number of iteration to be performed by the eigensolver.
A dynamic analysis generates a large amount of results which are passed on to the postprocessing. In order to reduce the amount of data, Rambshell offers the possibility to choose which results are required.this information Rambshell have the possibility of choose what results are required (Write Displacements, Write Velocities, Write Accelerations, Write Strengths and Write Reactions)
Using the option Output Step, the user can specify how many interim results should be included in the postprocess file.