Estimating safety of a tractor cab with the protective system ROPS

[摘要] The safety of the cab is an important requirement in the certification of the tractor at present. Roll-over protective structures (ROPS) protects the driver when the tractor is overturned. The safety assessment of the protective system ROPS is carried out on the basis of real tests in accordance with the requirements of GOST. Computer programs allow you to conduct safety assessments using the calculation method. The article presents a mathematical model of the protective structure of the ROPS of the industrial tractor B10. The finite element method has confirmed the safety of the ROPS protection system for a tractor weighing up to 25 tons. The deformation energy of 40 867 joules is achieved with a displacement of 261 mm and a lateral force of 229 kN. The magnitude of the lateral force in a real experiment differs from the calculated value by less than 4 %.

[发布机构] Department of Automobiles and Crawler Vehicles, South Ural State University, Chelyabinsk, Russia^1;Department of Applied Mechanics, South Ural State Agrarian University, Troitsk, Russia^2;Sci. and Educ. Ctr. of Ener. and Rsrc.-efficient Technol. in Diesel Engine Bldg, South Ural State University, Chelyabinsk, Russia^3

[效力级别] 工业技术

[关键词] Calculated values;Deformation energy;Industrial tractor;Lateral force;Protection systems;Protective structures;Protective systems;Safety assessments