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

Table 1

The natural frequency and energy decoupling rate of PMS before optimization.

The DoF with principle energy		Translational X	Translational Y	Translational Z	Rotational X	Rotational Y	Rotational Z
Natural frequency(Hz)		5.81	7.69	9.35	13.12	13.22	9.08
EDR	Translational X	88.24	0.03	5.43	0.48	3.47	2.34
	Translational Y	0.01	65.74	7.56	7.47	0.59	18.64
	Translational Z	2.61	0.07	59.27	0.51	20.81	16.73
	Rotational X	0.02	8.01	2.27	79.34	6.71	3.66
	Rotational Y	8.96	0.04	13.21	8.53	66.83	2.53
	Rotational Z	0.15	26.17	12.27	3.70	1.57	56.12