METHOD OF CALCULATING THE STRESSSTRAIN STATE OF FRAME STRUCTURES OF THE TRACTOR TRAILERS AT VARIOUS EXTERNAL INFLUENCES

In the article on an example of the tractor-trailer, a load-carrying capacity of 4 tons considers the technique for calculating the stress-strain state of the trailer frame. The comparative analysis of the results of theoretical and experimental researches is given. The calculations take into account the specific road conditions of the cotton-producing countries, which occupy four categories of road sections. The proposed method of calculation of the stress-strain state of the frame gives a good agreement with the experimental data (maximum values of stress in the range 11%) and can be used in justifying the strength parameters of tractor-trailers.