Study on Cyclic Relaxation Characteristics of C-ring for Reactor Pressure Vessel

Dong Yuanyuan; Zhang Yabin; Du Hua; Wang Xuxin; Zhao Wei

doi:10.13832/j.jnpe.2022.04.0065

Volume 43 Issue 4

Aug. 2022

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Dong Yuanyuan, Zhang Yabin, Du Hua, Wang Xuxin, Zhao Wei. Study on Cyclic Relaxation Characteristics of C-ring for Reactor Pressure Vessel[J]. Nuclear Power Engineering, 2022, 43(4): 65-69. doi: 10.13832/j.jnpe.2022.04.0065

Citation:

Dong Yuanyuan, Zhang Yabin, Du Hua, Wang Xuxin, Zhao Wei. Study on Cyclic Relaxation Characteristics of C-ring for Reactor Pressure Vessel[J]. Nuclear Power Engineering, 2022, 43(4): 65-69. doi: 10.13832/j.jnpe.2022.04.0065

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Study on Cyclic Relaxation Characteristics of C-ring for Reactor Pressure Vessel

doi: 10.13832/j.jnpe.2022.04.0065

Science and Technology on Research System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2021-08-03
Rev Recd Date: 2021-08-18
Publish Date: 2022-08-04

Abstract

Abstract

The C-ring for reactor pressure vessel is composed of three layers. In the actual service process, the interaction mechanism between the layers is complex. After multiple compression-rebound cycles, the sealing structure has cyclic relaxation, resulting in the degradation of sealing performance. The experimental study on the above cyclic relaxation is carried out, the degradation law of the sealing performance of C-ring with the number of cycles is obtained, and its cyclic relaxation characteristics are studied. Through theoretical simulation calculation and analysis, the total springback, effective springback, working point line load and other characteristic quantities of the cyclic relaxation law are obtained; By comparing the experimental and theoretical simulation results, the influence of the manufacturing process on the cyclic relaxation characteristics is revealed. The research in this paper can be used to guide the service performance evaluation and manufacturing process control and optimization of the C-ring.
- RPV,
- C-ring,
- Cyclic relaxation

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References(6)

References

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