Nondestructive evaluation of piers

Negru, Ionica; Gillich, Gilbert-Rainer; Praisach, Zeno-Iosif; Tufoi, Marius; Gillich, Edwald-Viktor

doi:10.1117/12.2081432

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…With the development of materials science, new glass fiber-reinforced plastics (hereinafter referred to as the "composite"), thanks to their good insulation properties and mechanical properties, have gradually become a substitute material to solve the problem of weak seismic performance of porcelain electrical equipment. In recent years, domestic and foreign scholars have carried out corresponding research on the mechanical properties and seismic performance of composite electrical equipment [11][12][13][14][15][16][17][18][19][20][21][22][23][24]. e representative research is the research on the seismic performance of ±800 kV composite insulators conducted by Cheng et al [12] through the earthquake simulation shaking table test, during which the displacement, strain, and acceleration responses of key parts of the equipment are obtained, and the comparative analysis was conducted for seismic response of the pillar insulators with and without the brackets.…”

Section: Introductionmentioning

confidence: 99%

Research on Bending Rigidity at Flange Connections of UHV Composite Electrical Equipment

Wang

Cheng

Lü

et al. 2020

Shock and Vibration

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Pillar electrical equipment is an important part of substations. The application of composite materials in pillar equipment can facilitate the improvement of the seismic performance of electrical equipment. In this paper, the test of elastic modulus and bending rigidity was conducted for individual composite elements in insulators and arresters, and the calculation formula for bending rigidity at the composite flange cementing connections was put forward. The numerical simulation model for the earthquake simulation shaking table test of ±1,100 kV composite pillar insulators was established, in which the bending rigidity value for the flange cementing part was obtained by the test or calculation formula. The numerical simulation results were compared with the earthquake simulation shaking table test results, the dynamic characteristics and seismic response of the model were compared, respectively, the validity of the proposed calculation formula for flange bending rigidity of composite cementing parts was verified, and a convenient and effective means was provided for calculating the seismic performance of composite electrical equipment.

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