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Experimental investigation on a two-stage high-static-low-dynamic stiffness vibration isolation system
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Minqiang SHAO1, Yunyun LI1, 3, Xubin ZHOU1, 2, Weidong CHEN1, Xingtian LIU2
Journal of Vibration Engineering | 2025, 38(1) : 47 - 53
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Journal of Vibration Engineering | 2025, 38(1): 47-53
Experimental investigation on a two-stage high-static-low-dynamic stiffness vibration isolation system
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Minqiang SHAO1, Yunyun LI1, 3, Xubin ZHOU1, 2, Weidong CHEN1, Xingtian LIU2
Affiliations
  • 1.State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • 2.Laboratory of Space Mechanical and Thermal Integrative Technology, Shanghai Institute of Satellite Engineering, Shanghai 201109, China
  • 3.Shanghai Spaceflight Precision Machinery Institute, Shanghai 201600, China
Published: 2025-01-10 doi: 10.16385/j.cnki.issn.1004-4523.2025.01.006
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A two-stage high-static-low-dynamic stiffness vibration isolation system composed of Euler buckling beam negative stiffness regulator and two-stage linear vibration isolation system in parallel is tested and studied. The mechanical principle of high-static-low-dynamic stiffness is described, and the compression test of the Euler buckling beam negative stiffness regulator prototype is carried out to verify its negative stiffness mechanism. According to the different parallel forms of the negative stiffness regulators, two vibration isolation systems, constrained and unconstrained, are proposed. The dynamic equations of the negative vibration isolation model of the system are solved, and vibration isolation performance of the two types of vibration isolation systems with the different upper and lower stiffness are analyzed in combination. Two vibration isolation test systems of high-static-low-dynamic stiffness vibration isolation systems are built, and their vibration isolation performance is verified by sweep frequency and fixed frequency tests, and the reasons for the deviation of the results are analyzed.

two-stage vibration isolation  /  Euler buckling beam  /  high-static-low-dynamic stiffness  /  vibration isolation test  /  force transmissibility
Minqiang SHAO, Yunyun LI, Xubin ZHOU, Weidong CHEN, Xingtian LIU. Experimental investigation on a two-stage high-static-low-dynamic stiffness vibration isolation system[J]. Journal of Vibration Engineering, 2025 , 38 (1) : 47 -53 . DOI: 10.16385/j.cnki.issn.1004-4523.2025.01.006
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Article Info
doi: 10.16385/j.cnki.issn.1004-4523.2025.01.006
  • Receive Date：2022-12-08
  • Online Date：2026-02-11
  • Published：2025-01-10
Article Data
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History
  • Received：2022-12-08
  • Revised：2023-04-25
Funding
Affiliations
    1.State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
    2.Laboratory of Space Mechanical and Thermal Integrative Technology, Shanghai Institute of Satellite Engineering, Shanghai 201109, China
    3.Shanghai Spaceflight Precision Machinery Institute, Shanghai 201600, China
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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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