Static analysis of single-axle tractor trailer frame
2021
Dizo, J., University of Zilina (Slovak Republic) | Blatnicky, M., University of Zilina (Slovak Republic) | Semenov, S., Volodymyr Dahl East Ukrainian National Univ., Luhansk (Ukraine) | Mikhailov, E., Volodymyr Dahl East Ukrainian National Univ., Luhansk (Ukraine) | Melnik, R., Lomza State Univ. of Applied Sciences (Poland) | Kurtulik, J., University of Zilina (Slovak Republic)
A tractor trailer is a nonautomotive vehicle, which is in its construction itself intended for transport of materials, mainly of agricultural commodities. We can recognize several types of tractor trailers. There are flat trailers, which platform allows transporting many kinds of materials; however, it does not allow to unload without an additional machine or manpower. A tipping trailer body significantly makes easier manipulation mainly with bulk material, such as gravel, send, soil, etc., and, at the same time, if the tipping body is properly designed, it allows also to transport palletised materials and more other commodities, which occur in agriculture. A possibility of tipping trailer body makes such a trailer very universal. However, the design of such a trailer requires to take into account certain specific facts, which do not occur in a case of a common platform-type trailer body. On the one hand, these specific requirements consist in operational conditions, in which a set of a tractor and a trailer can get to, and on the other hand, they result from different loading of a trailer frame in case of tipping. The authors in the article present the static analysis of such trailer structure, namely its main body. The presented problem is a part of the process of the design of a new type of a trailer, which a commercial producer wants to approve for production and operation. As it is a three-way tipping trailer, from the static analysis point of view, designers of the trailer have to take into account the limited loading case, which the trailer can be in. The part of the presented work is numerical calculations and strength analysis of the trailer frame structure under defined loading cases. Strength analyses were carried out by means of the finite element method. The article includes presentation of a computational model of a frame, the definition of the boundary conditions and the results of analyses.
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