Development of a technique for the geometrical modeling of conjugated surfaces when determining the geometrical parameters of an engagement surface contact in kinematic pairs

Authors

DOI:

https://doi.org/10.15587/1729-4061.2020.209108

Keywords:

kinematic method, geometric shape, cutting tool, conjugated surfaces, contact spatial surface, contact shape, toothing, geometric parameters, screw design, circular design

Abstract

This paper reports a technique for constructing a geometric shape of the surface of contact between the interacting conjugated machine elements using computer technology. A subprogram has been developed in the MATLAB software package.

The comprehensive solution to such problems is a certain scientific challenge and is of great importance when designing the kinematic pairs in mechanical engineering. The main systemic drawback in the construction of complex mechanisms is that the design process does not take into consideration the geometric characteristics of the contact spatial engagement surface in the screw kinematic pairs. As a result, during the manufacture of a kinematic pair, conventionally designed structural elements demonstrate defects that shorten their lifespan. Solving the set task could reduce the time to design toothing, cutting tools, would ensure the required estimation and graphic accuracy, as well as improve the efficiency of the manufacture of parts.

The study of existing procedures for designing screw conjugated surfaces has made it possible to note their unsatisfactory compliance with modern design requirements. Therefore, the manufacture of a kinematic pair that provides for technological accuracy implies the assignment of the curvilinear shapes for a contact spatial engagement surface under the predefined conditions.

The proposed geometric technique for determining the shape of a contact spatial surface of the kinematic pairs of toothing and cutting tools could make it possible to design and manufacture components and mechanisms with the required accuracy

Author Biographies

Nelli Ismailova, Military Academy Fontanska doroha str., 10, Odessa, Ukraine, 65009

Doctor of Technical Sciences, Professor

Department of Engineering Mechanics

Valentyn Bogach, National University "Odessa Maritime Academy" Didrykhsona str., 8, Odessa, Ukraine, 65029

PhD, Associate Professor, Head of Department

Department Technology of Materials and Ship Repair

Borys Lebedev, Military Academy Fontanska doroha str., 10, Odessa, Ukraine, 65009

PhD, Associate Professor

Department of Engineering Mechanics

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Published

2020-08-31

How to Cite

Ismailova, N., Bogach, V., & Lebedev, B. (2020). Development of a technique for the geometrical modeling of conjugated surfaces when determining the geometrical parameters of an engagement surface contact in kinematic pairs. Eastern-European Journal of Enterprise Technologies, 4(1 (106), 17–22. https://doi.org/10.15587/1729-4061.2020.209108

Issue

Vol. 4 No. 1 (106) (2020): Engineering technological systems

Section

Engineering technological systems

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Copyright (c) 2020 Nelli Ismailova, Valentyn Bogach, Borys Lebedev

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