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Study on structural design and energy absorption characteristics of protective devices under the super-large impact load
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Tieping WEI1, 2, 3, Chao KOU1, Shuo LIN3, Zupeng LIN1, Shoujin ZENG1, 2, Jinquan GUO4
Journal of Mechanical Strength | 2025, 47(10) : 86 - 95
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Journal of Mechanical Strength | 2025, 47(10): 86-95
• Experimental Research·Testing Technology •
Study on structural design and energy absorption characteristics of protective devices under the super-large impact load
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Tieping WEI1, 2, 3, Chao KOU1, Shuo LIN3, Zupeng LIN1, Shoujin ZENG1, 2, Jinquan GUO4
Affiliations
  • 1.School of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou 350118, China
  • 2.Fujian Key Laboratory of Intelligent Machining Technology and Equipment, Fuzhou 350118, China
  • 3.Fujian Key Laboratory of Force Measurement, Fujian Institute of Metrology, Fuzhou 350003, China
  • 4.School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
Published: 2025-10-15 doi: 10.16579/j.issn.1001.9669.2025.10.010
Outline
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A set of anti-impact protection device was designed for the test fracture accident of 30 MN tension sensor calibration device. Firstly, based on the kinematic theory, the kinematic model of each component in the fracture process of test fixture was established. Then, different protective device structures at three impact locations were designed. Finally, the finite element models of three buffer structures were established and verified, calculated and optimized. The results show that the egg-box structure protection device at the top plate of the upper reaction rack and the upper ball joints can effectively solve the problems of small protection space and large impact value. The whole device dissipates 59.5% impact kinetic energy of the upper reaction rack, 60.7% impact kinetic energy of the lower reaction rack and 100% impact kinetic energy of the lower ball joints. After the improvement, the initial peak load of the protective device at the lower ball joints is reduced by 62.7%.

Fracture impact  /  Super-large force value standard machine  /  Protective device  /  Egg-box structure  /  Finite element simulation
Tieping WEI, Chao KOU, Shuo LIN, Zupeng LIN, Shoujin ZENG, Jinquan GUO. Study on structural design and energy absorption characteristics of protective devices under the super-large impact load[J]. Journal of Mechanical Strength, 2025 , 47 (10) : 86 -95 . DOI: 10.16579/j.issn.1001.9669.2025.10.010
Funding
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  • Open Fund of Key Laboratory of Force Measurement for State Market Regulation(LZSYS202303)
Appendix
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Year 2025 volume 47 Issue 10
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Article Info
doi: 10.16579/j.issn.1001.9669.2025.10.010
  • Receive Date：2023-12-28
  • Online Date：2026-02-11
  • Published：2025-10-15
Article Data
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History
  • Received：2023-12-28
  • Revised：2024-04-09
Funding
Open Fund of Key Laboratory of Force Measurement for State Market Regulation(LZSYS202303)
Affiliations
    1.School of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou 350118, China
    2.Fujian Key Laboratory of Intelligent Machining Technology and Equipment, Fuzhou 350118, China
    3.Fujian Key Laboratory of Force Measurement, Fujian Institute of Metrology, Fuzhou 350003, China
    4.School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China

Corresponding:

WEI Tieping, 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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