Topological Design of a Mortar Base Plate under Impact Loads

Table 4

Comparison of the first 5 modal values of the base plate before and after optimization.

Modal order	1st order	2nd order	3rd order	4th order	5th order
Value of the original model (Hz)	369.83	369.90	477.39	687.78	689.47
Value of the optimized model (Hz)	379.90	379.92	513.41	714.19	717.25
Rate of change	2.72%	2.71%	7.55%	3.84%	4.03%