Abstract
For the English full text of the article please see the attached PDF-File (English version follows Russian version).ABSTRACT Screw-nut transmissions are used in control mechanisms to convert rotary motion to forward motion or vice versa. The authors propose a technique for determining the strength and wear resistance of screw-nut sliding transmission based on the solution of the contact problem for its radial section, taking into account the difference in the materials of the transmission parts. The object of the study is a screw that is made of steel, and a tin bronze nut. The article presents the solution of the problem for the trapezoidal thread profile, the basic step-by-step actions in ANSYS 10 ED, as well as the parametrized code APDL, allowing to choose the optimal geometric parameters of the transmission and the mechanical parameters of its details in terms of durability. Keywords: mechanics, screw-nut transmission, stress state, finite element method, ANSYS, parametric model, motion transformation.
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