Effect of suspension spring stiffness on vehicle dynamics

Soliman, Ahmed; Allah, S.A. Abd; El-Beter, A.A.; Mostaghimi, Hamid

doi:10.1504/ijhvs.2001.001166

Cited by 11 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, several parameters should be taken into consideration for designing the trucks suspension systems in order to provide more comfort for the truck driver as indicated in studies. [1][2][3][4][5][6][7] Clearly, the suspension systems are categorized into three major types called passive, semi-active, and active suspension system. In contrast to the active and semi-active systems, the passive suspension has limitations with respect to the adaptation with the road conditions, which means that the suspension can only be designed to be either soft or hard.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An analytical study of the performance indices of articulated truck semi-trailer during three different cases to improve the driver comfort

Abdelkareem

Makrahy

Abd-El-Tawwab

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part K:

View full text Add to dashboard Cite

Heavy trucks are mostly used for international transportations, with longer highways and long driving hours contributing to corresponding increases in the driver's fatigue that is related to accidents. Therefore, this study aims to improve the truck ride performance using multistage leaf springs and semi-active suspension for the driver seat. This analytical study describes the influence of the truck main suspensions on the performance indices analytically using MATLAB Simulink for different loading conditions in three case studies: fully laden articulated truck (case A), unladen truck (case B), and empty semi-trailer and a multistage leaf springs is considered after designing the main leaf spring stiffness based on particle swarm optimization (case C). This study exhibits a contribution based on the fact that changing the trailer cargo weight has considerable effects on the natural frequency of the vibration modes of the vehicle system, particularly for articulated carriage. Subsequently, the influence of the dynamic interaction of an articulated vehicle between the semitrailer and the tractor on its ride behavior has been investigated. The model has also predicted the effect of total trailer cargo on performance indices for 13 degrees of freedom model of a 6-axle articulated truck semi-trailer vehicle with a random road excitation. Additionally, a semi-active driver seat suspension based on skyhook strategy and seat passive suspension are compared in terms of the power spectral density and root mean square values. The results showed that the truck ride performance is improved significantly, and all the acceleration responses are suppressed dramatically when a designed multistage leaf spring suspension is considered in case C. The current analysis demonstrated that using specific and adjustable suspension parameters can positively enhance the riding behavior of the unladen vehicle. The results showed that the cab, tractor, and trailer acceleration improved by 22%, 21%, and 28%, respectively, which provides a comfort driving trip essentially for long distance traveling.

show abstract