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Two-steps weight-removing for dynamic balancing of micromotor rotor based on discrete vector model
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Dong JIANG, Zimin XUE, Zhenrong LU, Mengxuan LI, Weiyu CHEN, Xiaochen HANG
Journal of Vibration Engineering | 2025, 38(7) : 1486 - 1495
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Journal of Vibration Engineering | 2025, 38(7): 1486-1495
Two-steps weight-removing for dynamic balancing of micromotor rotor based on discrete vector model
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Dong JIANG, Zimin XUE, Zhenrong LU, Mengxuan LI, Weiyu CHEN, Xiaochen HANG
Affiliations
  • School of Mechanical and Electronic Engineering，Nanjing Forestry University，Nanjing 210037，China
Published: 2025-07-10 doi: 10.16385/j.cnki.issn.1004-4523.202306048
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A milling unbalance correction method based on a discrete vector model is proposed to address the issue of poor performance of traditional dynamic balancing methods when the initial unbalance of the micro motor rotor is large. A discrete vector model is established based on the parameters of the milling cutter and rotor，and the corresponding relationship between the equivalent cutting mass and cutting depth under second time cutting is obtained by integrating the discrete points of the edge curve. By comparing with the 3D model simulation data，it is verified that the deviation rate of the model is low. Experimental verification shows that when the initial unbalance on one side of the rotor exceeds 100 mg，a total weight removal rate of over 90% can be achieved，and the equivalent mass of the remaining unbalance on one side can be controlled below 10 mg. All rotors meet the G1 accuracy level. This indicates that this proposed method can improve the dynamic balance accuracy of the micro motor rotor when the initial unbalance of the micro motor rotor is large.

rotor dynamic balancing  /  micromotor  /  milling unbalance correction method  /  discrete vector model  /  initial unbalance
Dong JIANG, Zimin XUE, Zhenrong LU, Mengxuan LI, Weiyu CHEN, Xiaochen HANG. Two-steps weight-removing for dynamic balancing of micromotor rotor based on discrete vector model[J]. Journal of Vibration Engineering, 2025 , 38 (7) : 1486 -1495 . DOI: 10.16385/j.cnki.issn.1004-4523.202306048
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Year 2025 volume 38 Issue 7
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Article Info
doi: 10.16385/j.cnki.issn.1004-4523.202306048
  • Receive Date：2023-06-24
  • Online Date：2026-02-09
  • Published：2025-07-10
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  • Received：2023-06-24
  • Revised：2023-10-14
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    School of Mechanical and Electronic Engineering，Nanjing Forestry University，Nanjing 210037，China
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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
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
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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