Study on Simplified Model and Numerical Solution of High-Speed Angular Contact Ball Bearing

Table 4

Comparison of standard artificial bee colony algorithm and improved artificial bee colony algorithm.

Test function	Algorithm	Optimal solution	The worst solution	Mean	Standard deviation	Calculating time (s)
Rastrigin	Standard	1.95284E − 08	9.62104E − 06	3.24631E − 06	4.02246E − 06	27.94
	Improved	3.64366E − 10	2.30741E − 09	4.78643E − 10	7.56349E − 10	23.43
Ackley	Standard	4.14784E − 11	9.97926E − 11	2.38264E − 11	2.23417E − 11	33.65
	Improved	6.43285E − 13	7.15932E − 12	8.13264E − 13	2.78687E − 12	28.26
Rosenbrock	Standard	1.41868E − 02	5.23661E − 01	4.23692E − 01	1.97058E − 01	96.56
	Improved	5.38452E − 04	1.35267E − 03	6.43285E − 04	3.17665E − 04	73.24
Selfdef	Standard	8.38282E − 07	2.05764E − 05	6.43657E − 06	7.05824E − 06	23.68
	Improved	1.57346E − 08	8.43697E − 08	3.85145E − 08	2.46283E − 08	17.35