The objective of this paper is to illustrate that axle-to-body forces can be altered by the application of non-standard approaches to heavy vehicle (HV) air spring plumbing. The aim of this paper is to describe the methodology and results of testing carried out on two heavy vehicles fitted with the Haire suspension system. In doing so, the experimental methods are described, the results are presented, analysed and extrapolated in order to illustrate the effect that the Haire suspension system had on changes to the peak dynamic loading, dynamic load coefficient values and load sharing coefficients at the axle-to-chassis interface. The paper goes on to discuss the possibility of reducing dynamic forces on HV suspensions by the use of this system and other methods. The objective of the testing was to yield results that could be analysed to examine these claims. The testing was performed by fitting two heavy vehicles alternately with standard longitudinal air lines and then with the Haire suspension system to determine differences in the dynamic suspension parameters for the two test cases as measured at the air springs. (a) For the covering entry of this conference, please see ITRD abstract no. E214666.
Samenvatting