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Anti-overload Structure Design and Characteristic Analysis of Brushless DC Motor on Projectile
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Lei XIAO1, Zhiguo FENG1, Lei ZHAO2, Yu ZHANG2, Huacong KUANG1
Missiles and Space Vehicles | 2025, 48(2) : 77 - 84
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Missiles and Space Vehicles | 2025, 48(2): 77-84
• Material and Manufacturing •
Anti-overload Structure Design and Characteristic Analysis of Brushless DC Motor on Projectile
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Lei XIAO1, Zhiguo FENG1, Lei ZHAO2, Yu ZHANG2, Huacong KUANG1
Affiliations
  • 1School of Mechanical Engineering,Guizhou University,Guiyang,550025
  • 2Guizhou Kaiminbo Electromechanical Technology Co., Ltd.,Guiyang,550025
Published: 2025-04-25 doi: 10.7654/j.issn.2097-1974.20250210
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In order to solve the problem of vulnerability of the missile-loaded motor shaft and bearing in the high overload environment of 23 000g guided artillery projectile, the anti-high overload brushless DC motor using a combination of disc spring and special steel ball for buffering and vibration damping is designed. Firstly, the acceleration load curve of the missile-borne motor is obtained by calculation. The bearing and shaft of the brushless DC motor are analyzed to be the failure prone parts. Secondly, according to the energy absorption characteristics of dish spring and steel ball, a composite damping structure of brushless DC motor combining dish spring and special steel ball is designed in the case of limited structural space. And based on this structure, a high speed and fast response anti-high overload motor is designed. Finally, the simulation and experimental analysis of the designed motor show that the design of the composite buffer structure can effectively reduce the stress and deformation of the motor shafting parts under the high overload environment. The structure of the anti-high overload motor has no obvious damage after the Marshall's drop hammer test, and the working performance meets the requirements of precision guidance control.

guidance projectile  /  anti high overload  /  brushless DC motor  /  transient dynamics  /  buffer shock absorption
Lei XIAO, Zhiguo FENG, Lei ZHAO, Yu ZHANG, Huacong KUANG. Anti-overload Structure Design and Characteristic Analysis of Brushless DC Motor on Projectile[J]. Missiles and Space Vehicles, 2025 , 48 (2) : 77 -84 . DOI: 10.7654/j.issn.2097-1974.20250210
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Article Info
doi: 10.7654/j.issn.2097-1974.20250210
  • Receive Date：2024-02-04
  • Online Date：2025-07-21
  • Published：2025-04-25
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  • Received：2024-02-04
  • Revised：2024-05-15
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Affiliations
    1School of Mechanical Engineering,Guizhou University,Guiyang,550025
    2Guizhou Kaiminbo Electromechanical Technology Co., Ltd.,Guiyang,550025
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
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Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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