Research on Vehicle Course Stability on Mountain Roads

Authors

DOI:

https://doi.org/10.54338/27382656-2025.9-08

Keywords:

automobile, course stability, longitudinal and transverse slope, centrifugal force, turning radius, adhesion coefficient

Abstract

This study aims to develop a generalized indicator of vehicle course stability for mountain roads that simultaneously accounts for longitudinal and transverse road slopes, small-radius horizontal curves, the tire–road adhesion coefficient, vehicle dynamic parameters, and road transport and operational characteristics. Based on experimental investigations, a force-based calculation scheme describing vehicle motion under mountainous road conditions was developed. On this basis, a dimensionless course stability indicator was formulated, which characterizes vehicle stability as a function of road geometric parameters. For mountain roads with large longitudinal gradients and small-radius horizontal curves, an integral indicator combining road geometry and vehicle dynamics was obtained to assess vehicle motion stability on typical mountainous road sections.

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Author Biographies

Valerik Harutyunyan, National University of Architecture and Construction of Armenia

Doctor of Philosophy (PhD) in Engineering (RA, Yerevan) - National University of Architecture and Construction of Armenia, Associate Professor at the Chair of Construction Machinery and Organization of Traffic

Anna Hayrapetyan, National University of Architecture and Construction of Armenia

(RA, Yerevan) - National University of Architecture and Construction of Armenia, Lecturer at the Chair of Construction Machinery and Organization of Traffic

Armen Harutyunyan, National University of Architecture and Construction of Armenia

Doctor of Philosophy (PhD) in Engineering (RA, Yerevan) - National University of Architecture and Construction of Armenia, Associate Professor at the Chair of Construction Machinery and Organization of Traffic

Karapet Mosikyan, National University of Architecture and Construction of Armenia

Doctor of Philosophy (PhD) in Engineering (RA, Yerevan) - National University of Architecture and Construction of Armenia, Associate Professor at the Chair of Construction Machinery and Organization of Traffic

References

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Published

12/31/2025

How to Cite

Harutyunyan, V., Hayrapetyan, A., Harutyunyan, A., & Mosikyan, K. (2025). Research on Vehicle Course Stability on Mountain Roads. Journal of Architectural and Engineering Research, 9, 87–93. https://doi.org/10.54338/27382656-2025.9-08

Issue

Vol. 9 (2025)

Section

Articles

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Copyright (c) 2025 Valerik Harutyunyan, Anna Hayrapetyan, Armen Harutyunyan, Karapet Mosikyan

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