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Vibration characteristic experiments of rotor system with different crack parameters
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Bing HAN, Zhansheng LIU, Peng HE, Peigang YAN
Journal of Vibration Engineering | 2025, 38(3) : 461 - 468
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Journal of Vibration Engineering | 2025, 38(3): 461-468
Vibration characteristic experiments of rotor system with different crack parameters
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Bing HAN, Zhansheng LIU, Peng HE, Peigang YAN
Affiliations
  • School of Energy Science and Engineering，Harbin Institute of Technology，Harbin 150001，China
Published: 2025-03-10 doi: 10.16385/j.cnki.issn.1004-4523.2025.03.002
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Four multi-disk rotors with the same structure size are used as the research basis. The precision wire cutting method is used to prefabricate transverse cracks of different depths at different positions of the four rotors. The vibration characteristics of the cracked rotor system with changed crack parameters are tested and the relationship between the dynamic response characteristics of the cracked rotor and the crack location and crack depth is analyzed. The test results show that the 2× resonance phenomenon in the 1/2 critical speed zone and the 3× resonance phenomenon in the 1/3 critical speed zone are the typical characteristics of the rotating shaft crack failure. The 2× resonance peak value increases rapidly after the crack depth reached a critical point. While the 3× resonance peak value，which is different from the results of existing studies，drops abruptly after the crack depth reached a critical point. Also，there is a correlation between the critical depth that triggered an abrupt change in the peak 2× and 3× resonance and whether the crack location is at the root of the disc.

rotor dynamics  /  vibration characteristic experiment  /  crack depth  /  crack position  /  multi-disk rotor system
Bing HAN, Zhansheng LIU, Peng HE, Peigang YAN. Vibration characteristic experiments of rotor system with different crack parameters[J]. Journal of Vibration Engineering, 2025 , 38 (3) : 461 -468 . DOI: 10.16385/j.cnki.issn.1004-4523.2025.03.002
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Year 2025 volume 38 Issue 3
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Article Info
doi: 10.16385/j.cnki.issn.1004-4523.2025.03.002
  • Receive Date：2023-06-05
  • Online Date：2026-02-11
  • Published：2025-03-10
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  • Received：2023-06-05
  • Revised：2023-08-24
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    School of Energy Science and Engineering，Harbin Institute of Technology，Harbin 150001，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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