Design and Research of Semiactive Quasi-Zero Stiffness Vibration Isolation System for Vehicles

Table 5

Maximum acceleration ratio at different vehicle speeds under semisinusoidal impact pavement.

Vehicle speed (km·h^−1)	Body centre	Passive QZS system		Semiactive QZS system
	Peak acceleration (m·s^−2)	Peak acceleration (m·s^−2)	Ratio	Peak acceleration (m·s^−2)	Ratio
30	9.762	3.356	0.34	0.834	0.086
40	17.187	6.195	0.36	1.787	0.103
50	21.158	8.791	0.42	2.489	0.118