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벽 등반 드론 자세에 따른 모듈형 영구자석 휠-레그의 부착력

Adhesion Force of the Modular Permanent Magnet Wheel-leg according to the Posture of a Wall Climbing Drone

Journal of the Korean Society for Precision Engineering 2023;40(6):493-498.
Published online: June 1, 2023

1 숭실대학교 기계공학부

1 School of Mechanical Engineering, Soongsil University

#E-mail: ahj123@ssu.ac.kr, TEL: +02-820-0654
• Received: November 10, 2022   • Revised: February 3, 2023   • Accepted: February 10, 2023

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Development of Drone-attached Spraying Device for Active Maintenance of Structures
    Seung-Han Yang, Kwang-Il Lee
    Journal of the Korean Society for Precision Engineering.2023; 40(12): 975.     CrossRef

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Adhesion Force of the Modular Permanent Magnet Wheel-leg according to the Posture of a Wall Climbing Drone
J. Korean Soc. Precis. Eng.. 2023;40(6):493-498.   Published online June 1, 2023
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Adhesion Force of the Modular Permanent Magnet Wheel-leg according to the Posture of a Wall Climbing Drone
J. Korean Soc. Precis. Eng.. 2023;40(6):493-498.   Published online June 1, 2023
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Adhesion Force of the Modular Permanent Magnet Wheel-leg according to the Posture of a Wall Climbing Drone
Image Image Image Image Image Image Image Image Image Image
Fig. 1 Wall mounted drone
Fig. 2 Wheel-leg and its climbing mechanism
Fig. 3 Free body diagram of the wall-climbing drone
Fig. 4 Required magnetic force for attachment
Fig. 5 Torque to drive the wheel-legs with 4 spokes
Fig. 6 Measurement of the wheel-leg’s magnetic force
Fig. 7 Test model for wall detachment experiment
Fig. 8 Experiments to measure parameters of the test model
Fig. 9 Experimental set-up for detach conditions
Fig. 10 Experiment result
Adhesion Force of the Modular Permanent Magnet Wheel-leg according to the Posture of a Wall Climbing Drone

Parameters to calculate the required magnetic force

Para. Value [m] Para. Value
b 0.08 r 0.02 [m]
h 0.04 W 6.01 [N]
l1, l2 0.09, 0.01 μs 0.62

Parameters of the wheel-leg

Fm [N] dm [mm] Fd [N] d1 [mm]
14.11 15 3.44 29.8

Experimental results of detach conditions

θ [o] θwT [o] θwE [o] Error [%]
ΣFx = 0 Eq. (2) 0 60 58 3.4
ΣMy = 0 Eq. (4) θ ≤ 78.11o 75 79 81 2.5
Eq. (5) θ ≥ 78.11o 136 106 107 0.99
ΣMz = 0 Eq. (6) θw ≤ 90o 72 57 58 1.7
Eq. (7) θw ≥ 90o 10 117 116 0.86
Table 1 Parameters to calculate the required magnetic force
Table 2 Parameters of the wheel-leg
Table 3 Experimental results of detach conditions