Title: Determination of dynamic axle load using suspension deflection method for the load distribution optimisation of multi-axle vehicles

Authors: Mustafa Umut Karaoğlan; Nusret Sefa Kuralay

Addresses: Department of Mechanical Engineering, Dokuz Eylul University, Izmir 35397, Turkey ' Department of Mechanical Engineering, Dokuz Eylul University, Izmir 35397, Turkey

Abstract: Identification of dynamic axle loads in multiple axle vehicles requires complex calculation methods because of its hyper static solving necessity. In this study, suspension deflection method is proposed to determine the dynamic axle loads for optimisation of load distribution of a multi-axle vehicle having more than two axles. The determination of the dynamic axle loads is performed for driving conditions with a climbing angle and a longitudinal acceleration to optimise the loads at the axles of the vehicle using suspension deflection method. General equations and calculation methodology are presented for a multi-axle vehicle and a numerical example is implemented using the suspension deflection method for a four-axle vehicle as a case study. Finally, it is shown that the suspension deflection method is more simple and useful than other approaches to define the dynamic axle loads for an optimisation study of the vehicles which have multiple axles.

Keywords: optimisation; vehicle; suspension; multi-axle; dynamic; load.

DOI: 10.1504/IJVD.2019.109839

International Journal of Vehicle Design, 2019 Vol.80 No.2/3/4, pp.89 - 102

Received: 02 May 2019
Accepted: 04 Sep 2019
Published online: 28 Sep 2020 *

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