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# Optimization of Center of Gravity Position and Anti-Wave Plate Angle of Amphibious Unmanned Vehicle Based on Orthogonal Experimental Method

Deyong Shang1,2, Xi Zhang1, Fengqi Liang1, Chunde Zhai1, Hang Yang1, Yanqi Niu1,2,*

1 School of Mechanical, Electronic & Information Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China
2 Institute of Intelligent Mining & Robotics, China University of Mining and Technology (Beijing), Beijing, 100083, China

* Corresponding Author: Yanqi Niu. Email:

Computer Modeling in Engineering & Sciences 2024, 139(2), 2027-2041. https://doi.org/10.32604/cmes.2023.045750

## Abstract

When the amphibious vehicle navigates in water, the angle of the anti-wave plate and the position of the center of gravity greatly influence the navigation characteristics. In the relevant research on reducing the navigation resistance of amphibious vehicles by adjusting the angle of the anti-wave plate, there is a lack of scientific selection of parameters and reasonable research of simulation results by using mathematical methods, and the influence of the center of gravity position on navigation characteristics is not considered at the same time. To study the influence of the combinations of the angle of the anti-wave plate and the position of the center of gravity on the resistance reduction characteristics, a numerical calculation model of the amphibious unmanned vehicle was established by using the theory of computational fluid dynamics, and the experimental data verified the correctness of the numerical model. Based on this numerical model, the navigation characteristics of the amphibious unmanned vehicle were studied when the center of gravity was located at different positions, and the orthogonal experimental design method was used to optimize the parameters of the angle of the anti-wave plate and the position of the center of gravity. The results show that through the parameter optimization analysis based on the orthogonal experimental method, the combination of the optimal angle of the anti-wave plate and the position of the center of gravity is obtained. And the numerical simulation result of resistance is consistent with the predicted optimal solution. Compared with the maximum navigational resistance, the parameter optimization reduces the navigational resistance of the amphibious unmanned vehicle by 24%.

## Keywords

APA Style
Shang, D., Zhang, X., Liang, F., Zhai, C., Yang, H. et al. (2024). Optimization of center of gravity position and anti-wave plate angle of amphibious unmanned vehicle based on orthogonal experimental method. Computer Modeling in Engineering & Sciences, 139(2), 2027-2041. https://doi.org/10.32604/cmes.2023.045750
Vancouver Style
Shang D, Zhang X, Liang F, Zhai C, Yang H, Niu Y. Optimization of center of gravity position and anti-wave plate angle of amphibious unmanned vehicle based on orthogonal experimental method. Comput Model Eng Sci. 2024;139(2):2027-2041 https://doi.org/10.32604/cmes.2023.045750
IEEE Style
D. Shang, X. Zhang, F. Liang, C. Zhai, H. Yang, and Y. Niu "Optimization of Center of Gravity Position and Anti-Wave Plate Angle of Amphibious Unmanned Vehicle Based on Orthogonal Experimental Method," Comput. Model. Eng. Sci., vol. 139, no. 2, pp. 2027-2041. 2024. https://doi.org/10.32604/cmes.2023.045750

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