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Mechanical design and test of a broadband ring meta-structure isolator for seawater pump
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Haiping LIU1, 2, Zhe WANG1, Shikun ZHOU1, Lifang ZHENG1
Journal of Mechanical Strength | 2025, 47(9) : 190 - 196
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Journal of Mechanical Strength | 2025, 47(9): 190-196
Mechanical design and test of a broadband ring meta-structure isolator for seawater pump
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Haiping LIU1, 2, Zhe WANG1, Shikun ZHOU1, Lifang ZHENG1
Affiliations
  • 1.School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • 2.Shunde Innovation School, University of Science and Technology Beijing, Foshan 528399, China
Published: 2025-09-15 doi: 10.16579/j.issn.1001.9669.2025.09.018
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Addressing the rotational vibration issues encountered during the operation of seawater pumps, and integrating measured vibration characteristics, a quasi-zero stiffness ring meta-structure isolator was designed for vibration control based on the principles of quasi-zero stiffness isolation and the bandgap features of meta-structure. First of all, taking a typical seawater pump as the research object and based on an integrated quasi-zero stiffness structure, a structural design scheme of the ring meta-structure isolator was proposed. Then, models of quasi-zero stiffness unit cell, one-dimensional quasi-zero stiffness meta-structure and quasi-zero structure ring meta-structure isolator were established using finite element method and theoretical method, respectively. Their static and dynamic mechanical characteristics were calculated and analyzed, and their isolation effect on the output vibration of seawater pumps was evaluated. The calculation and test results show that the quasi-zero stiffness ring meta-structure isolator provides multiple bandgaps at low frequencies, and exhibits significant vibration suppression effects on typical frequencies of seawater pumps.

Integrated quasi-zero stiffness  /  Broadband vibration isolation  /  Meta-structure  /  Ring isolator  /  Rotating machinery
Haiping LIU, Zhe WANG, Shikun ZHOU, Lifang ZHENG. Mechanical design and test of a broadband ring meta-structure isolator for seawater pump[J]. Journal of Mechanical Strength, 2025 , 47 (9) : 190 -196 . DOI: 10.16579/j.issn.1001.9669.2025.09.018
Funding
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  • Beijing Natural Science Foundation-Huairou Innovation Joint Fund Project(L245008)
Appendix
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Year 2025 volume 47 Issue 9
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Article Info
doi: 10.16579/j.issn.1001.9669.2025.09.018
  • Receive Date：2025-05-05
  • Online Date：2026-03-20
  • Published：2025-09-15
Article Data
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History
  • Received：2025-05-05
Funding
Beijing Natural Science Foundation-Huairou Innovation Joint Fund Project(L245008)
Affiliations
    1.School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
    2.Shunde Innovation School, University of Science and Technology Beijing, Foshan 528399, China

Corresponding:

LIU Haiping, E-mail：
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Citations
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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