MODELING AND STUDY OF THE CYLINDER REDUCER WEAR FOR MOBILE ROBOT
Journal Title: Проблеми тертя та зношування - Year 2018, Vol 79, Issue
Abstract
At the design stage, attention is paid to the executive system, which is the main mechanical component of the robotic system. A malfunction or incorrect operation of one link of a me-chanical system leads to a malfunction in part or in whole mechanism of robot. The common reasons for the reducers failures are defects that occur in the gear transmission (tooth break-age, breakage, surface peeling, wear and tear, plastic deformation, abrasive wear). The subject of this study is a horizontal one-stage reducer with cylindrical ends of shafts, as the most common mobile robots mechanical system. The purpose of this work is to model gear compo-nents for static and fatigue strength and to reduce the time of evaluation of the mechanical properties of each assembly unit and their aggregate, reducing the resources for its solution through the use of CAD / CAM / CAE systems. To achieve this goal it is necessary to solve the following tasks: analyzing defects arising in the gearbox; 3D model construction of parts and their assembly; simulation, calculation and analysis of the stressed-deformed state of the main components of the gear unit using the finite element method in the ANSYS automated design system. In solving the tasks the methodology of system analysis and modeling was used. As a result of the overview of the main tasks and characteristics, ANSYS modeling in SAE was carried out to check the gear components, namely the shafts, for static and fatigue strength. Thus, in order to prevent defects at the design stage, mechanical components were calculated for maximum static strength, contact strength, defined bending stresses at constant and short-term (peak) loads, and other characteristics that affected the reliability and life cycle of the component.
Authors and Affiliations
І. NEVLIUDOV, V. YEVSIEIEV, N. DEMSKA
Keywords
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