A highway road train motion model for prediction of its operational properties

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Abstract

BACKGROUND: The modern methods of scientific research in the field of vehicle dynamics come down to the development of comprehensive complete models of ground vehicles motion and conducting the simulations using numerical methods. To predict the highway road train operational properties, it is necessary to develop a complex model of spatial movement along various types of support surfaces, taking into account the combined operation of its main components and assemblies systems in a modern software. The simulation object is a highway road train, riding on 1st and 2nd category roads during its operation, both with and without a semitrailer.

AIM: Development of the highway road train motion model in Multi-Body Dynamics environment for predicting the vehicle operational properties, analyzing design and engineering solutions, and selecting vehicle systems parameters.

METHODS: The study uses numerical simulation methods in the Simcenter AMESim, which offers capabilities of multibody dynamics analysis. The functioning adequacy of the developed motion model has been confirmed by experimental validation methods based on the results of field road tests of a real highway road train on the proving ground.

RESULTS: A comprehensive model of the highway road train spatial motion has been developed in the Simcenter AMESim to simulate its ride at various weight states on the 1st and 2nd category roads. The motion model ensures prediction of the operational properties of ride, stability, handling, traction and braking dynamics, for analyzing design and engineering solutions, and for selecting vehicle system parameters. The results of validation of the developed motion model show deviations of the simulation results within 10%.

CONCLUSION: The comprehensive spatial model of the highway road train motion and its software implementation for modeling its dynamics in order to predict the vehicle operational properties have been developed. The developed model is applicable for researches of vehicles dynamics indicators with simulation modeling methods with allowable simulation results deviations within 10%.

About the authors

Roman O. Maksimov

Moscow Polytechnic University; KAMAZ Innovation Center

Author for correspondence.
Email: romychmaximov@gmail.com
ORCID iD: 0009-0003-4947-790X
SPIN-code: 7384-6758

Postgraduate and engineer of the Ground Vehicles Department, Lecturer of the Advanced Engineering School of Electric Transport, Lead design engineer – group head

Russian Federation, Moscow; Moscow

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Supplementary files

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2. Fig. 1. Visualization of the highway road train motion model in the Simcenter AMESim software.

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3. Fig. 2. The wheel propulsor design schemes: a, kinematics; b, sliding velocity vector.

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4. Fig. 3. The friction ellipses for the tire and road contact model: a, at various longitudinal slip; b, at various lateral slip.

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5. Fig. 4. The tire longitudinal and lateral forces diagrams: a, longitudinal; b, lateral.

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6. Fig. 5. Spatial location and orientation of a rigid body model.

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7. Fig. 6. Operating modes of the internal combustion engine model during vehicle dynamics simulation.

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8. Fig. 7. The experimental research object in the process of field tests conducting: a, highway road train on the testing ground road surface; b, a truck preparation in the laboratory.

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