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

Table 4

The natural frequencies and energy decoupling rate of PMS after optimization.

DoF with principal vibration energy		Translational X	Translational Y	Translational Z	Rotational X	Rotational Y	Rotational Z
Natural frequency (Hz)		5.68	7.20	8.25	13.52	13.03	9.07
Energy decoupling distribution	Translational X	85.40	0.02	9.40	0.01	4.02	0.38
	Translational Y	0.00	78.88	0.00	13.52	0.00	7.13
	Translational Z	4.38	0.29	72.15	0.20	18.04	5.75
	Rotational X	0.07	14.30	1.42	84.56	0.02	0.01
	Rotational Y	9.82	0.36	10.50	0.08	77.87	1.50
	Rotational Z	0.33	6.15	6.53	1.63	0.05	85.23