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Calculations of the optimal distribution of brake force in agricultural vehicles categories R3 and R4
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Bialystok University of Technology Faculty of Mechanical Engineering ul. Wiejska 45C, 15-351 Białystok, Poland
Publication date: 2019-12-31
Eksploatacja i Niezawodność – Maintenance and Reliability 2019;21(4):645–653
Fulfilling the requirements of the EU Directive 2015/68 in the area of braking for agricultural trailers depends on the proper selection of individual components of the braking system. This paper describes the requirements regarding braking performance and distribution of brake forces in agricultural trailers in R3 and R4 categories. On this basis, a methodology for calculating the optimal linear distribution of brake forces, characteristic for agricultural trailers with pneumatic braking systems, has been developed. The examples of calculation of an optimal distribution of brake forces for a two- and three-axle trailer with a tandem suspension system of the rear axle assembly have been provided. The optimization algorithm with the Monte Carlo method has been described, based on which a computer program was developed to select a linear distribution of brake forces in a three-axle trailer with ‘walking beam’ and ‘bogie’ suspensions. The presented calculations can be used in the design process to select the parameters of wheel braking mechanisms and then the characteristics of the pneumatic valves of the braking system.
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Calculation of the Optimal Braking Force Distribution in Three-Axle Trailers with Tandem Suspension
Zbigniew Kamiński
Acta Mechanica et Automatica