Analysis and Optimisation of Ride Vibration of a Heavy-Duty Truck Based on a Vertical-Pitch-Roll Driver-Vehicle Coupled Dynamic Model

Table 4

Comparison of carriage acceleration r.m.s. before and after optimisation.

Speed (km/h)	Origin (m/s^2)	Optimised (m/s^2)	Variation
40	3.459	2.371	^−31.5%
50	3.922	2.640	^−32.7%
60	4.012	2.740	^−31.7%
70	4.713	3.078	^−34.7%
80	4.654	3.329	−28.5%