Effects of Suspension Design Parameters of a Semi-trailer Truck on Vehicle Ride Comfort and Road Surface Friendliness

Optimal design parameters of air suspension systems for semi-trailer truck. Part 1: modeling and algorithm

“…A semi-tractor-trailer truck with a dependent leaf spring of suspension system for the front steer axle and four air spring of suspension systems for the rear axles of tractor and trailer is selected for vehicle dynamic analysis and optimum. A half-vehicle dynamic model for a 5-axle semi-trailer truck [12,17] was established to search the optimal parameters of air spring of suspension systems and air suspension systems, as shown in Fig. 1.…”

“…Genetic algorithm (GA) is used to search the optimal design parameters for air suspension systems. In the genetic algorithm process is as follows [18] [1,3,11,12,16] as follows:…”

Analysis and Study Indicators for Quarter Car Model with Two Air Suspension System

“…Air springs provide better comfort and handling performance because simple decrease of stiffness for obtaining soft suspension and constant suspension space, independently of load between the sprung and un sprung mass moreover, by supplying and strangling the air through an air circuit connected to the air spring it is possible to adjust air springs' heights. For analyzing the effects of suspension design parameters on vehicle ride comfort as well as friendliness of the road surface when vehicles travel on the road surface of ISO class B at velocity 20 m/s with a complete load for a half-vehicle model of a semi-trailer, the RC of the vehicle with the increase of the damping of the suspension was improved by Quynh et al [1]. The simulation findings demonstrated that independent stiffness and the ride height control tuning can enable suspension that is more adaptable design for striking a better balance between a numerous conflicting requirements and obstacles was presented by Yin et al [2].…”