title: ÐÑÐµÐ½ÐºÐ° Ð¸ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ñ ÐºÑÐ·Ð¾Ð²Ð½Ð¾Ð¹ ÑÐ°Ð¼Ñ ÐºÐ¾Ð»ÐµÑÐ½Ð¾Ð³Ð¾ ÑÐ½ÐµÐ³Ð¾Ð±Ð¾Ð»Ð¾ÑÐ¾Ñ Ð¾Ð´Ð°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Evaluation and optimization of the body frame of the snow and swamp vehicle
Creators: name: ÐÐ±ÑÐ°Ð¼Ð¾Ð², ÐÐ¾Ð³Ð´Ð°Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: ÐÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð² Ð¼ÐµÑÐ¾Ð´
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snow and swamp vehicles
calculations
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description: The subject of the graduate qualification work is "Evaluation and optimization of the body frame of the snow and swamp vehicle". The purpose of the work is to evaluate the resulting deformations and stresses in the original spatial frame of the all-terrain vehicle and to determine the ways of possible modification of this frame to improve the mechanical properties, as well as to evaluate the proposed improvements. The research part presents the results of numerical simulation of torsion, bending and overturning of the considered all-terrain vehicle. As a result of the numerical calculation of the initial structure, the following were determined: the limiting moment before the onset of plastic deformations and the torsional rigidity of the frame, the displacements in the frame during bending during the hanging of the wheels, which do not exceed 1% for the entire length of the frame, and the stresses lying in the elastic zone. Deformations and stresses during the overturn of the machine according to the scheme from GOST 34065 exceed the limit values, the required force on the loading plate is not reached. In accordance with the results obtained, 6 possible ways to improve the design were put forward, of which good results were shown: adding a transverse rack, corners at the welding points and replacing steel with aluminum with changing sections. Other improvements also have good results on target parameters but have more risks of increasing local stiffness or critically reducing the overall mechanical properties of the frame. The work was performed based on the products of Rusak LLC, which provided the initial design of the space frame. Based on the results of the work, the conclusions drawn, and the formulated recommendations were submitted to the design department of the company for evaluation and further analysis.