Abstract
The main steam piping of nuclear power plant which runs between steam generator and high pressure turbine has been experienced to have a severe effect on the safe operation of the plant due to the vibration induced by the steam flowing inside the piping. The imposed cyclic loads by the vibration could result in the degradation of the related structures such as connection parts between main instruments, valves, pipe supports and building. The objective of the study is to reduce the vibration level of Wolsung nuclear power plant unit 1 main steam pipeline by analyzing vibration characteristics of the piping, identifying sources of the vibration and developing a vibration reduction method .The location of the maximum vibration is piping between the main steam header and steam chest .The stress level was found to be within the allowable limit .The main vibration frequency was found to be 4{approx}6 Hz which is the same as the natural frequency from model test .A vibration reduction method using pipe supports of energy absorbing type(WEAR)is selected .The measured vibration level after WEAR installation was reduced about 36{approx}77% in displacement unit (author). 36 refs., 188 figs.
Lee, Hyun;
Kim, Yeon Whan;
[1]
Kim, Tae Ryong;
Park, Jin Ho
[2]
- Korea Electric Power Corp. (KEPCO), Taejon (Korea, Republic of). Research Center
- Korea Atomic Energy Research Inst., Daeduk (Korea, Republic of)
Citation Formats
Lee, Hyun, Kim, Yeon Whan, Kim, Tae Ryong, and Park, Jin Ho.
A study on the evaluation of vibration effect and the development of vibration reduction method for Wolsung unit 1 main steam piping.
Korea, Republic of: N. p.,
1996.
Web.
Lee, Hyun, Kim, Yeon Whan, Kim, Tae Ryong, & Park, Jin Ho.
A study on the evaluation of vibration effect and the development of vibration reduction method for Wolsung unit 1 main steam piping.
Korea, Republic of.
Lee, Hyun, Kim, Yeon Whan, Kim, Tae Ryong, and Park, Jin Ho.
1996.
"A study on the evaluation of vibration effect and the development of vibration reduction method for Wolsung unit 1 main steam piping."
Korea, Republic of.
@misc{etde_267492,
title = {A study on the evaluation of vibration effect and the development of vibration reduction method for Wolsung unit 1 main steam piping}
author = {Lee, Hyun, Kim, Yeon Whan, Kim, Tae Ryong, and Park, Jin Ho}
abstractNote = {The main steam piping of nuclear power plant which runs between steam generator and high pressure turbine has been experienced to have a severe effect on the safe operation of the plant due to the vibration induced by the steam flowing inside the piping. The imposed cyclic loads by the vibration could result in the degradation of the related structures such as connection parts between main instruments, valves, pipe supports and building. The objective of the study is to reduce the vibration level of Wolsung nuclear power plant unit 1 main steam pipeline by analyzing vibration characteristics of the piping, identifying sources of the vibration and developing a vibration reduction method .The location of the maximum vibration is piping between the main steam header and steam chest .The stress level was found to be within the allowable limit .The main vibration frequency was found to be 4{approx}6 Hz which is the same as the natural frequency from model test .A vibration reduction method using pipe supports of energy absorbing type(WEAR)is selected .The measured vibration level after WEAR installation was reduced about 36{approx}77% in displacement unit (author). 36 refs., 188 figs.}
place = {Korea, Republic of}
year = {1996}
month = {Aug}
}
title = {A study on the evaluation of vibration effect and the development of vibration reduction method for Wolsung unit 1 main steam piping}
author = {Lee, Hyun, Kim, Yeon Whan, Kim, Tae Ryong, and Park, Jin Ho}
abstractNote = {The main steam piping of nuclear power plant which runs between steam generator and high pressure turbine has been experienced to have a severe effect on the safe operation of the plant due to the vibration induced by the steam flowing inside the piping. The imposed cyclic loads by the vibration could result in the degradation of the related structures such as connection parts between main instruments, valves, pipe supports and building. The objective of the study is to reduce the vibration level of Wolsung nuclear power plant unit 1 main steam pipeline by analyzing vibration characteristics of the piping, identifying sources of the vibration and developing a vibration reduction method .The location of the maximum vibration is piping between the main steam header and steam chest .The stress level was found to be within the allowable limit .The main vibration frequency was found to be 4{approx}6 Hz which is the same as the natural frequency from model test .A vibration reduction method using pipe supports of energy absorbing type(WEAR)is selected .The measured vibration level after WEAR installation was reduced about 36{approx}77% in displacement unit (author). 36 refs., 188 figs.}
place = {Korea, Republic of}
year = {1996}
month = {Aug}
}