A mode-superposition transient of 0.5-second duration is used to quickly generate 2500 displacement solutions.
The OUTRES,NSOL,1 command is issued to obtain results for every time point, as the mode-superposition transient writes results for every fourth solution by default.
A time step size of 2.0e-4 seconds is used to obtain 25 samples per period of the highest frequency of interest, 200 Hz (1 / (200 * 25) = 2.0e-4 secs).
Example 65.1: Mode-Superposition Transient Analysis
d_t=0.0002 t_end=0.5 n_points=t_end/d_t /solu antyp,trans trnop,msup,, ,,, ,Yes ! Write velocity and acceleration to file.rdsp outres,nsol,1,node_comp ! Request nodal output at every time point dmprat,.01 deltime,d_t f,node_load,fz,0 ! Initialize Force solve time,d_t f,node_load,fz,10000 solve time,0.0011 solve time,0.0012 f,node_load,fz,0 solve time,t_end solve fini