Multiobjective Lightweight Optimization Design Method for a Dump Truck Carriage under Multiple Working Conditions

Table 6

Accuracy of the four approximation methods for constructing the approximation model.

Approximation method	Mass	EI	MT	Full-load strain	Full-load stress	0° strain	0° stress
RBF	0.997	0.981	0.908	0.977	0.917	0.903	0.927
HK	1	0.999	0.910	0.912	0.966	0.983	0.988
LSR	1	0.980	0.907	0.910	0.914	0.981	0.910
MLSM	1	0.982	0.920	0.934	0.906	0.989	0.916