A new design for dynamic sealing of flange closure considering bending deformation

CHENG Shuai; SHI Yingju; YIN Wenjun; CHEN Bo; ZHANG Dezhi; LIU Wenxiang

doi:10.11883/bzycj-2019-0113

Volume 40 Issue 3

Mar. 2020

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CHENG Shuai, SHI Yingju, YIN Wenjun, CHEN Bo, ZHANG Dezhi, LIU Wenxiang. A new design for dynamic sealing of flange closure considering bending deformation[J]. Explosion And Shock Waves, 2020, 40(3): 034101. doi: 10.11883/bzycj-2019-0113

Citation:

CHENG Shuai, SHI Yingju, YIN Wenjun, CHEN Bo, ZHANG Dezhi, LIU Wenxiang. A new design for dynamic sealing of flange closure considering bending deformation[J]. Explosion And Shock Waves, 2020, 40(3): 034101. doi: 10.11883/bzycj-2019-0113

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A new design for dynamic sealing of flange closure considering bending deformation

doi: 10.11883/bzycj-2019-0113

Laboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology， Xi’an 710024, Shaanxi, China

Received Date: 2019-04-08
Rev Recd Date: 2019-09-24
Publish Date: 2020-03-01

Abstract

Abstract

Preload selection is one of the key problems for sealing design of closure-flange structure. In this study, a dual spring mass model accounting for the bending deformation of the closure is developed by estimating the equivalent stiffness and mass of the closure flexural vibration. The predicting result of dynamic response is in a great agreement with experiments. Finally, the law of variation of both axial and flexural deformation of the closure with bolt preloading is summarized, and the results show tthe clearance of sealing surface decreases gradually to a stable value with the increase of preloading force. And the bending deformation of the end cap is the main factor affecting this stable value.
- dynamic sealing,
- closure flange,
- bolt preload,
- flexural vibration

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References(15)

References

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