Author(s)

ShuHang Peng^*, Hang Zhang

Affiliation(s)

Wuhan R&D Center, China Special Vehicle Research Institute, Wuhan 430070, Hubei, China.

Corresponding Author

ShuHang Peng

ABSTRACT

Addressing the limitations of traditional jack suspension methods, which are unsuitable for water based UAV without landing gear, and the challenges of obtaining the center of gravity height position of water based UAV using the two-point suspension method, this paper proposes reading the force sensor readings at two suspension points under different small pitch angles and simplifying the torque equation through coordinate transformations. Based on this, the optimal estimates of the center of gravity position are calculated using the Fermat method and the least squares method, respectively. The results indicate that, while maintaining the same experimental costs and operational difficulty, the method proposed in this paper reduces experimental errors and improves the effectiveness and accuracy of center of gravity calculations for UAVs.

KEYWORDS

Two-point suspension method; Water based UAV; Coordinate transformation; Fermat's method; Least squares method

CITE THIS PAPER

ShuHang Peng, Hang Zhang. Measurement of the center of gravity of a water based UAV based on the two-point suspension method. World Journal of Engineering Research. 2025, 3(3): 1-8. DOI: https://doi.org/10.61784/wjer3032.

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