Different measures of relative roll instability of heavy vehicles are investigated to determine their dynamic rollover characteristics. Analytical models of different vehicle combinations are presented and a concept of effective lateral acceleration is proposed to characterize the relative roll instability under dynamic directional manoeuvres. The analytical models for a five-axle tractor semi-trailer combination and an eigth-axle A-train double are analysed to establish the dynamic rollover threshold based upon relative roll instability criterion and effective lateral acceleration. The dynamic rollover threshold of the vehicle, derived for different suspension properties and operating conditions, is compared with the corresponding static rollover threshold of the vehicle. From the results of the study, it is establishd that dynamic rollover threshold based on effective lateral acceleration in most cases is either slightly lower or equal to the static rollover threshold acceleration. The difference between the dynamic and static rollover thresholds is less than 5 % for the vehicle configurations and the steering manoeuvres considered in the study. The static rollover threshold may thus be conveniently employed to estimate the dynamic rollover propensity of heavy vehicles.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Dynamic rollover threshold of articulated freight vehicles


    Additional title:

    Statische und dynamische Überschlagsschwelle für Nutzfahrzeuge


    Contributors:
    Liu, P.J. (author) / Rakheja, S. (author) / Ahmed, A.K.W. (author)

    Published in:

    Heavy Vehicle Systems ; 5 , 3/4 ; 300-322


    Publication date :

    1998


    Size :

    23 Seiten, 9 Bilder, 7 Tabellen, 16 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Dynamic rollover threshold of articulated freight vehicles

    Liu,P.J. / Rakheja,S. / Ahmed,A.K. et al. | Automotive engineering | 1998


    Dynamic simulation for the rollover stability performances of articulated vehicles

    Yao, Zongwei / Wang, Guoqiang / Li, Xuefei et al. | SAGE Publications | 2014


    Dynamic simulation for the rollover stability performances of articulated vehicles

    Yao, Zongwei / Wang, Guoqiang / Li, Xuefei et al. | Tema Archive | 2014



    Dynamic simulation for the rollover stability performance of articulated vehicles

    Yao,Z. / Wang,G. / Li,X. et al. | Automotive engineering | 2014