Design, Assembly, and Inspection of Advanced U-Bend/Antivibration Bar Configurations for PWR Steam GeneratorsSource: Journal of Pressure Vessel Technology:;1989:;volume( 111 ):;issue: 004::page 371Author:P. J. Langford
DOI: 10.1115/1.3265693Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Tube vibration and wear potential in the U-bend region of pressurized water reactor (PWR) steam generators is reduced by enhanced design bases and fabrication procedures. Applicable vibration mechanisms are described and related to field experience to focus the development program which led to the enhancements. Technical bases were developed from flow-induced vibration tests and shaker tests in which the tube/antivibration bar (AVB) wear-producing forces and motions were characterized in terms of work rate. Fixtures to control weld shrinkage and instruments to measure tube/AVB fit-up were developed for fabrication. Assembly and application experience, including measurement of fabricated tube bundle/AVB fit-up, is summarized for several advanced steam generators. Implications for enhanced operating experience relative to conventional design configurations are noted.
keyword(s): Inspection , Boilers , Design , Manufacturing , Pressurized water reactors , Vibration , Wear , Force , Motion , Flow-induced vibrations , Instrumentation , Mechanisms , Jigs and fixtures AND Shrinkage (Materials) ,
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| contributor author | P. J. Langford | |
| date accessioned | 2017-05-08T23:30:46Z | |
| date available | 2017-05-08T23:30:46Z | |
| date copyright | November, 1989 | |
| date issued | 1989 | |
| identifier issn | 0094-9930 | |
| identifier other | JPVTAS-28315#371_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/105840 | |
| description abstract | Tube vibration and wear potential in the U-bend region of pressurized water reactor (PWR) steam generators is reduced by enhanced design bases and fabrication procedures. Applicable vibration mechanisms are described and related to field experience to focus the development program which led to the enhancements. Technical bases were developed from flow-induced vibration tests and shaker tests in which the tube/antivibration bar (AVB) wear-producing forces and motions were characterized in terms of work rate. Fixtures to control weld shrinkage and instruments to measure tube/AVB fit-up were developed for fabrication. Assembly and application experience, including measurement of fabricated tube bundle/AVB fit-up, is summarized for several advanced steam generators. Implications for enhanced operating experience relative to conventional design configurations are noted. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Design, Assembly, and Inspection of Advanced U-Bend/Antivibration Bar Configurations for PWR Steam Generators | |
| type | Journal Paper | |
| journal volume | 111 | |
| journal issue | 4 | |
| journal title | Journal of Pressure Vessel Technology | |
| identifier doi | 10.1115/1.3265693 | |
| journal fristpage | 371 | |
| journal lastpage | 377 | |
| identifier eissn | 1528-8978 | |
| keywords | Inspection | |
| keywords | Boilers | |
| keywords | Design | |
| keywords | Manufacturing | |
| keywords | Pressurized water reactors | |
| keywords | Vibration | |
| keywords | Wear | |
| keywords | Force | |
| keywords | Motion | |
| keywords | Flow-induced vibrations | |
| keywords | Instrumentation | |
| keywords | Mechanisms | |
| keywords | Jigs and fixtures AND Shrinkage (Materials) | |
| tree | Journal of Pressure Vessel Technology:;1989:;volume( 111 ):;issue: 004 | |
| contenttype | Fulltext |