The Theory of Calculating the Surface of the Bulldozer Blade Wing With the Least Resistance

The Theory of Calculating the Surface of the Bulldozer Blade Wing With the Least Resistance

Authors

  • Aramayis Esoyan National Agrarian University of Armenia
  • Armen Harutyunyan Nationаl University of Architecture and Construction of Armenia
  • Gevorg Karapetyan National Agrarian University of Armenia
  • Anahit Harutyunyan Nationаl University of Architecture and Construction of Armenia

DOI:

https://doi.org/10.54338/18294200-2023.3-02

Keywords:

bulldozer, blade, cutting edge, guide curve, logarithmic spiral, traction resistance

Abstract

An energy analysis of the bulldozer wing's operation was conducted, which showed that tillage tools with a working surface having a guide curve with a constant radius have maximum resistance, while surfaces in the form of a logarithmic spiral have the minimum resistance to traction. It was proposed to design the part of the bulldozer wing buried in the ground, which is in a severe stress-strain state, in the form of a logarithmic spiral, and the above-ground part of the wing, located in the zone outside the stress-strain state of the soil during cutting-excavation, is designed in the form of an arc of a circle of constant radius. The equations of the guide curve in the form of a logarithmic spiral for the part of the bulldozer wing that enters the ground and the direction curve in the form of a circular arc for the aerial part of the wing were obtained through theoretical studies.

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Author Biographies

Aramayis Esoyan, National Agrarian University of Armenia

Doctor of Science (engineering), Professor (RA, Yerevan) - ANAU, Chair of tractors and agricultural Machines

Armen Harutyunyan, Nationаl University of Architecture and Construction of Armenia

Doctor of Science (engineering), Professor (RA, Yerevan) - ANAU, Chair of tractors and agricultural Machines

Gevorg Karapetyan, National Agrarian University of Armenia

Doctor of philosophy (Ph.D) in engineering, (RA, Yerevan) – NUACA, Chair of Construction Machinery and Organization of Traffic, assistant

Anahit Harutyunyan, Nationаl University of Architecture and Construction of Armenia

(RA, Yerevan) – NUACA, Chair of Construction Machinery and Organization of Traffic, лектор

Published

2023-12-27

How to Cite

Esoyan, A., Harutyunyan, A., Karapetyan, G., & Harutyunyan, A. (2023). The Theory of Calculating the Surface of the Bulldozer Blade Wing With the Least Resistance. Scientific Papers of National University of Architecture and Construction of Armenia, 87(3), 10–18. https://doi.org/10.54338/18294200-2023.3-02

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