Rubber Stiffness Optimization for Floor Vibration Attenuation of a Light Bus Based on Matrix Inversion TPA

Table 2

The results of optimized PMS at the bus speed of 60 km/h and 90 km/h (unit: N/mm).

Design variable bus speed	Stiffness of X direction of front mount ()	Stiffness of Y direction of front mount ()	Stiffness of Z direction of front mount ()	Stiffness of second driveshaft Z direction ()	Z direction stiffness of right-front suspension rubber ()
60 km/h	128.2	345	552.4	89	1224.2
90 km/h	100.2	345	552.4	124	1225.2