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Theoretical and Experimental Research of High-Static-Low-Dynamic Torsional Vibration Isolator for Ship Shafting
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Lin-tao LI1, Jia-zhong LU1, Zhi-rong YANG1, Wang-qiang XIAO2, Zhu-shi RAO3
Journal of Ship Mechanics | 2024, 28(12) : 1970 - 1982
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Journal of Ship Mechanics | 2024, 28(12): 1970-1982
• Hydro/Structural Acoustics •
Theoretical and Experimental Research of High-Static-Low-Dynamic Torsional Vibration Isolator for Ship Shafting
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Lin-tao LI1, Jia-zhong LU1, Zhi-rong YANG1, Wang-qiang XIAO2, Zhu-shi RAO3
Affiliations
  • 1.School of Marine Engineering, Jimei University, Xiamen 361021, China
  • 2.School of Aerospace Engineering, Xiamen University, Xiamen 361000, China
  • 3.State Key laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China

    • LI Lin-tao(1996-), male, master student

    YANG Zhi-rong(1981-), male, associate professor, MSc supervisor, corresponding author, E-mail: .

Published: 2024-12-20 doi: 10.3969/j.issn.1007-7294.2024.12.012
Outline
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High-static-low-dynamic stiffness (HSLDS) vibration isolators have been demonstrated to be an effective means of attenuating low-frequency vibrations, and may be utilized for ship shafting applications to mitigate torsional vibration. This paper presents the construction of a highly compact HSLDS torsional vibration isolator by connecting positive and negative stiffness components in parallel. Based on mechanical model analysis, the restoring torque of negative stiffness components is derived from their springs and connecting rods, while that of positive stiffness components is obtained through their circular section flexible rods. The quasi-zero stiffness characteristics of the HSLDS isolator are achieved through a combination of static structural simulation and experimental test. The torsional vibration isolation performance is assessed by means of numerical simulation and theory analysis. Finally, the frequency-sweep vibration test is conducted. The test results indicate that the HSLDS torsional vibration isolator exhibits superior low-frequency isolation performance compared to its linear counterpart, rendering it a promising solution for mitigating low-frequency torsional vibration in ship shafting.

ship shafting  /  high-static-low-dynamic stiffness  /  torsional vibration isolator
Lin-tao LI, Jia-zhong LU, Zhi-rong YANG, Wang-qiang XIAO, Zhu-shi RAO. Theoretical and Experimental Research of High-Static-Low-Dynamic Torsional Vibration Isolator for Ship Shafting[J]. Journal of Ship Mechanics, 2024 , 28 (12) : 1970 -1982 . DOI: 10.3969/j.issn.1007-7294.2024.12.012
Funding
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  • National Natural Science Foundation Project(52475104)
  • Guiding Project of Science and Technology Plan of Fujian Province(2024H0015)
  • Industry-University-Research Joint Innovation Project of Fujian Province(2022H6003)
  • Leading Innovation Project of China National Nuclear Group(22GFC-JJ12-475)
Appendix
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Year 2024 volume 28 Issue 12
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117
49
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Article Info
doi: 10.3969/j.issn.1007-7294.2024.12.012
  • Receive Date：2024-06-17
  • Online Date：2026-03-26
  • Published：2024-12-20
Article Data
Affiliations
History
  • Received：2024-06-17
Funding
National Natural Science Foundation Project(52475104)
Guiding Project of Science and Technology Plan of Fujian Province(2024H0015)
Industry-University-Research Joint Innovation Project of Fujian Province(2022H6003)
Leading Innovation Project of China National Nuclear Group(22GFC-JJ12-475)
Affiliations
    1.School of Marine Engineering, Jimei University, Xiamen 361021, China
    2.School of Aerospace Engineering, Xiamen University, Xiamen 361000, China
    3.State Key laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China

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Corresponding author, E-mail:
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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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