DYNAMIC INTERACTION BETWEEN INSTRUMENTED VEHICLES AND PAVEMENTS
B Jacob, Dolcemascolo · 1998
In the scope of the OECD/DIVINE project (Element 5) experiments were carried out in France on several road sections with different profiles. Dynamic responses of two instrumented vehicles travelling at speed were investigated. Axle load variations were studied in the frequency/wavelength domain by spectral analysis, in order to identify the vehicle vertical dynamic motions. Amplitudes of such load variations were also related to the vehicle characteristics and the pavement profile. Comparisons are made between steel leaf spring and air 'road-friendly' suspension for one vehicle. Frequency and wavelength matching phenomena are pointed out, which in some cases cause dramatic increases in the dynamic loads. Some recommendations are suggested to reduce road damage, and to increase vehicle comfort and safety, which deal with heavy vehicle design, driving rules, and pavement maintenance. (a) For the covering entry of this conference, please see IRRD 895232.