Abstract
This work is dedicated to the research of the dynamic process in the fire automobile’s water cistern with different levels of filling. The work’s aim is to obtain data on the fluctuations of the dynamic system’s mass center that combines water and its tank during a fire automobile moving through a rough woodland at different speed. Determined data allow to predict the danger of fire automobile overturning under such conditions. During the solution of this task, the geometric configuration of the fire automobile cistern with water was modeled using the universal program complex LS-DYNA for computer modeling of dynamic systems. Time relations of cistern’s turn angles were set to recreate the dynamic impact on the fire automobile water cistern from the side of the rough woodland relief. The obtained relations were used as boundary conditions for recreating the dynamic impact of the rough woodland relief. The turning angles for the water cistern were determined depending on the relief bumps. The geometric form and parameters of these bumps were calculated using a pseudorandom number generator. Upon the explicit method and smoothed particles hydrodynamics method realized in LS-DYNA program code, the center mass fluctuating regularity for the water cistern of a fire automobile was determined in dependence of filling level and movement speed. This regularity can be used as a basis for predicting the danger of a fire automobile overturning as it moves through rough woodland.
Keywords
- Water cistern of fire automobile
- Rough woodland
- Mass center fluctuation
- Smoothed particles hydrodynamics method
- Explicit method
- Danger of overturning
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Pozdieiev, S., Tarasenko, O., Almazov, K., Nekora, V. (2023). Research of Dynamic Process in Water Cistern of Fire Automobile During Its Moving Along Rough Woodland. In: Dimitrovová, Z., Biswas, P., Gonçalves, R., Silva, T. (eds) Recent Trends in Wave Mechanics and Vibrations. WMVC 2022. Mechanisms and Machine Science, vol 125. Springer, Cham. https://doi.org/10.1007/978-3-031-15758-5_125
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DOI: https://doi.org/10.1007/978-3-031-15758-5_125
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