Sensitivity Analysis

The coding for sensitivity analysis is concentrated within the sensi_coor.c (coordinates as design variables) and sensi_orien.c (orientation as design variables) subroutines. The design responses and the parameters describing them are stored in a character*81 field objectset(5,nobject), where nobject is the number of design responses.

The structure of the field objectset is as follows:

The structure of subroutines sensi_coor.c and sensi_orien.c is made up of a preprocessing part, a processing part and a postprocessing part. The preprocessing part is executed only once, for frequency sensitivities the processing and postprocessing part is executed as many times as there are eigenvalues, else they are executed only once.