Ruiyuan Xue1, Shurong Yu1, *, Xiheng Zhang1
CMC-Computers, Materials & Continua, Vol.65, No.1, pp. 789-805, 2020, DOI:10.32604/cmc.2020.011340
Abstract Nuclear power plants (NPP) contain plenty of valve piping systems (VPS’s)
which are categorized into high anti-seismic grades. Tasks such as seismic qualification,
health monitoring and damage diagnosis of VPS’s in its design and operation processes
all depend on finite element method. However, in engineering practice, there is always
deviations between the theoretical and the measured responses due to the inaccurate value
of the structural parameters in the model. The structure parameters identification of VPS
within NPP is still an unexplored domain to a large extent. In this paper, the initial 2Dfinite element model (FEM) for VPS with a DN80… More >
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