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- W2226855124 abstract "The main stream line of nuclear power plants(NPPs) experiences a steam hammer by sudden closure of a turbine stop valve. The flow-induced vibration of a piping system of NPP is asked to measure because the regulatory guide is revised. The test method to evaluate the integrity of the piping system used in NPP site is reviewed in this paper. The final reaction force at a pipe support and displacement of the pipes during the transient are measured by load pins and linear variable differential transformers(LVDTs). There are potential problems for measuring a force at the pipe support with the alignment of a load pin and bending forces. The displacement of the pipes has also some issues to be considered such as transducer attachment, attachment stiffness and dynamic response of LVDT. In this paper a site methodology to acquire the pressure transient by a steam hammer and an acoustic resonance is proposed. The pressure of the piping system can be measured by the pressure transducers and strain gauges. The accelerometers can also be used to measure the vibration of a pipe-work." @default.
- W2226855124 created "2016-06-24" @default.
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- W2226855124 date "2015-04-01" @default.
- W2226855124 modified "2023-09-24" @default.
- W2226855124 title "원자력발전소 주증기배관의 유동유발진동 측정 방법의 제안" @default.
- W2226855124 hasPublicationYear "2015" @default.
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