Dynamic Relaxation : Analysis & Results

Analysis

Once the structural model is defined using the data tables and graphics, the analysis is set-up using the Analysis wizard. Note that the Analysis > Check data menu command checks the data without knowing which solution method is intended. Error messages may be generated which are not relevant to the nonliner solver. The Nonlinear static solver option should be selected in the Analysis wizard. (The solver will be reported as GsRelax and the solution option as Static.) The Wizard then prompts for the information to define an analysis. The data is fully checked for GsRelax at the start of the analysis.

Within the wizard an Analysis case can be defined or selected, the loading can be applied in one or many steps and the particular nonlinear analysis selected. The basic analysis option is single increment. This will set up an analysis which most closely follows a linear static analysis in that the results are the forces and deflections in the model for imposed loading defined as an analysis case. The loading is all imposed on the model at the start of the analysis. Only one analysis case is analysed at a time, so for multiple cases the solutions are sequential.

The dynamic relaxation solver uses an iterative process controlled by damping. The results and progress of the analysis can be viewed and adjusted while it is in progress. The iterative process can be tuned in the analysis wizard, and the format and frequency of reporting analysis progress adjusted.

Results

Once the analysis has converged to a solution, the results are available for display in output views and graphic views. During the analysis a report window displays the checks, and the intermediate results for the multi-increment analyses. This report window also displays the results summary for individual component buckling and automatic increment options.