The Value of Investigating and Trending Minor Failures to Prevent Major Incidents

Cherolis, Nicholas E.; Benac, Daniel J.; Shaffer, Dorothy Maxwell; Redman, J. F.

doi:10.1007/s11668-018-0504-7

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2024

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“…With the advancement of society and the progress in science and technology, the structural size of major equipment has become increasingly large-scale [ 1 , 2 , 3 ]. However, due to the size effect, small-scale mechanical tests on smooth specimens are no longer sufficient to comprehensively evaluate the mechanical properties of full-size equipment.…”

Section: Introductionmentioning

confidence: 99%

Research on Electro-Hydraulic Servo Resonance Technology

Yang,

Liu,

Zhao

2024

Sensors

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In this paper, an electro-hydraulic servo resonance technology is proposed to meet the loading requirements of a high-frequency sound fatigue test for large tonnage. First of all, we analyze the static and dynamic loading structure of electro-hydraulic servo vibration and establish the vibration equation of the system. Additionally, the modal and vibration characteristics of the system are analyzed by simulation, which verified the feasibility of the proposed electro-hydraulic servo resonant loading technology. Finally, the influence of various factors such as sample stiffness, lead screw stiffness, class II spring stiffness, class II weight mass, lower beam mass, and upper beam mass on the natural frequency and amplification coefficient of the system is analyzed. In this paper, a new technology is proposed to provide theoretical support for the research and development of large-tonnage high-frequency noise fatigue testing equipment.

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Section: Introductionmentioning

confidence: 99%