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Dynamic Load Determination of a Multi-purpose Forest Fire Fighting Vehicle When Operating on Forestry Road

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Abstract

Purpose

Dynamic load from road surface acting on a vehicle has a variable value, depending on road surface profile, movement speed, and stiffness of suspension system, etc. The purpose of this study is to determine the dynamic load from the road surface acting on the multi-purpose forest fire fighting vehicle when the vehicle moves on the forest road by theoretical and experimental methods. Experimental results are compared with the theoretical simulation results to verify the reliability of the simulation model.

Methods

This article presents the study results to determine the dynamic load acting on multi-purpose forest fire fighting vehicle by the theoretical and experimental methods when the vehicle moves on the forest road. With the theoretical research method, the authors use the analysis method to separate the structure of the system of many objects and apply Newton–Euler equations to establish the car dynamics model, using the Matlab Simulink software to investigate for determining the dynamic load. By the experimental method, the authors have determined the forest ground roughness to serve as an input parameter for the theoretical survey results and determine the dynamic load acting on the vehicle to compare with the simulation results.

Results

The study results of the dynamic load determination show that the error between theory and experiment is the largest of 6.22%. Coinstantaneously, to ensure kinetic safety and durability, when the vehicle moves on the forest road, the vehicle's speed must be less than or equal to 15 km/h.

Conclusions

In order to be able to make a meaningful comparison between the findings of the simulation and the outcomes of the experiment, the experiment was performed under the exact identical parameters as the theoretical simulation calculation conditions. The final results of the experiments provided rules that were comparable to those derived from the model's calculations of the survey data. When the extremes of dynamic loads from the simulation and the experimental findings are compared, it can be shown that the largest deviation is 6.22%. This can be considered a demonstration of the correctness and dependability of the dynamic model that the author has constructed and used to identify the load that is acting on the vehicle.

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Authors and Affiliations

  1. Vinh Long University of Technology Education, 73, Nguyen Hue Street, Vinh Long, Vietnam

    Luong Van Van & Nguyen Thanh Tung

Authors
  1. Luong Van Van
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  2. Nguyen Thanh Tung
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Correspondence to Luong Van Van.

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Van, L.V., Tung, N.T. Dynamic Load Determination of a Multi-purpose Forest Fire Fighting Vehicle When Operating on Forestry Road. J. Vib. Eng. Technol. 12, 3507–3517 (2024). https://doi.org/10.1007/s42417-023-01061-w

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  • DOI: https://doi.org/10.1007/s42417-023-01061-w

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