Certificate of Registration Media number Эл #ФС77-53688 of 17 April 2013. ISSN 2308-6033. DOI 10.18698/2308-6033
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Features of the search for optimal design parameters for the frame of high-speed amphibious vehicles when moving on water through parametric optimization based on the improved weighted TOPSIS method

Published: 30.03.2024

Authors: Wang Yizhou, Zuzov V.N., Ivanenkov V.V.

Published in issue: #3(147)/2024

DOI: 10.18698/2308-6033-2024-3-2341

Category: Aviation and Rocket-Space Engineering | Chapter: Ground transport and technological means and complexes

The study aimed to decrease the mass of high-speed amphibious vehicle frames without compromising their strength and rigidity. The study performed evaluation and selection of loading modes to optimize subsequent parametric optimization. The load obtained during straight-line movement through the water at the maximum speed of 50 km/h was analyzed for parametric optimization. The research examined the influence of design parameters, such as section shape, frame material, and filler, on the frame’s properties to identify a rational option and determine the factors with the greatest influence on structure behavior for subsequent optimization consideration. The optimization aimed to identify parameters that would minimize frame mass. The incorporation of hybrid material (AL/CFRP) with omega cross-section into the bottom frame produced superior structural response and mass outcomes. Through an optimization process involving the ratio of aluminum alloy thickness and carbon fiber, the mass of the bottom frame can be reduced 26% without compromising identical levels of deformation and stress. The present study provides a starting-point for further research in the optimal design parameters for the frame of high-speed amphibious vehicles. From a lightweight design perspective, the frame has been proven to help reduce weight while maintaining the strength and stiffness of the high-speed amphibious vehicle underbody.


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