Design Optimization of an Integrated E-Type Multilink Suspension Wheel-Side Drive System and Improvement of Vehicle Ride Comfort

Table 7

Six-degree-of-freedom of bushing stiffnesses.

Number	Radial x stiffness (N/mm)	Radial y stiffness (N/mm)	Axial z stiffness (N/mm)	Bending stiffness around radial x (N mm/°)	Bending stiffness around radial y (N mm/°)	Torsional stiffness (N mm/°)
1#	2098	2106	846	7284	7220	2532
2-1#	4878	6998	561	4165	4253	1841
2-2#	4878	6998	561	4165	4253	1841
3#	2928	2876	564	6027	6143	2772
4#	2285	4267	576	5542	7220	3165
5#	2285	2363	979	5542	4253	5547
6#	3565	2468	947	7092	7141	2915