Skip to main content
SpringerLink
Log in

Seismic response analysis for equatorial diagnostic port plug of international thermonuclear experimental reactor

  • Published:
Journal of Central South University of Technology Aims and scope Submit manuscript

Abstract

Modal analysis and seismic response analysis were carried out for the equatorial diagnostic port plug of international thermonuclear experimental reactor (ITER). The aim of the theoretical analysis is to verify structural strength and reliability of the device. The working condition includes one-dimensional seismic wave and two-dimensional seismic wave. Modal analysis of the device shows that primary vibration is inclined to occur in low-order modes. The horizontal (X-direction, Y-direction) maximum vibration appears at the first and the fourth eigen modes, with the natural frequency of 70.59 and 215.88 Hz respectively, and the vertical (Z-direction) primary vibration appears at the second eigen mode with the natural frequency of 82.85 Hz. According to the results of the finite element analysis (FEA) program, the weak portions of the device are distributed in the joint of port body with blanket shielding module (BSM) and inner side wall of ribbed plate for lifting flange, the maximum von Mises stress is 14.8 MPa with the Y-direction seismic wave. In accordance with the design criteria, the destructive effect is far below the failure boundary, and the structural reliability of the equatorial diagnostic port plug can meet the requirements of the design specifications.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. ITER Organization. The ITER design phase [R]. Cadarache: ITER, 2007.

    Google Scholar 

  2. YU Dong-man, XIE Han. Structural design of equatorial diagnostic port plug for ITER [R]. Hefei: ASIPP, 2007.

    Google Scholar 

  3. YU Dong-man, XIE Han. Force analysis of equatorial diagnostic port plug for ITER [R]. Hefei: ASIPP, 2007.

    Google Scholar 

  4. WALKER C. Diagnostic system engineering [R]. Cadarache: ITER, 2005.

    Google Scholar 

  5. WALKER C. Equatorial port plug design-development [R]. Cadarache: ITER, 2005.

    Google Scholar 

  6. WALKER C. Diagnostic port plug loads [R]. Cadarache: ITER, 2004.

    Google Scholar 

  7. DOCEUL L, WALKER C, INGESSON C, CIATTAGLIA E, CHAPPUIS P, PORTAFAIX C, SALASCA S, THOMAS E, TREMBLAY G, BRUYERE C. CEA engineering studies and integration of the ITER diagnostic port plugs [J]. Fusion Engineering and Design, 2007, 82: 1216–1223.

    Article  Google Scholar 

  8. WALKER C, BARNSLEY R, COSTLEY A E, GOTTFRIED R, HAIST B, ITAMI K, KONDOH T, LOESSER G D, PALMER J, SUGIE T, TESINI A, VAYAKIS G. ITER diagnostics: Maintenance and commissioning in the hot cell test bed [J]. Fusion Engineering and Design, 2005, 74: 685–690.

    Article  Google Scholar 

  9. YAO Da-mao, SONG Yun-tao, WU Song-tao, HE Ye-xi, WU Wei-yue, DU Shi-jun. Design and structure analyses of HT-7U vacuum vessel [J]. Fusion Engineering and Design, 2001, 58/59:839–843.

    Article  Google Scholar 

  10. YAO Da-mao, LI Jian-gang, SONG Yu-tao, DU Shi-jun, CHEN Jun-ling, WENG Pei-de. EAST in-vessel components design [J]. Fusion Engineering and Design, 2005, 75/79: 491–494.

    Article  Google Scholar 

  11. YAO Da-mao, SONG Yu-tao, WU Song-tao, WENG Pei-de. HT-7U vacuum vessel [J]. Fusion Engineering and Design, 2003, 69:355–359.

    Article  Google Scholar 

  12. YAO Da-mao, SONG Yu-tao, DU Shi-jun, WU Wei-yue, WU Song-tao, HE Ye-xi. An optimized structure design of the HT-7U vacuum vessel [J]. Plasma Science and Technology, 2001, 3(4):865–870.

    Article  Google Scholar 

  13. CIATTAGLIA E, INGESSON L C, CAMPBELL D, SAIBENE G, WALKER C, DOCEUL L, DIRKEN P, PETRIZZI L, HEIDINGER R. ITER diagnostic port plug engineering design analysis in the EU [J]. Fusion Engineering and Design, 2007, 82: 1231–1237.

    Article  Google Scholar 

  14. HONG Y S, KWON T H, AHN H J, KIM Y K, LEE C D. Structural analysis for an upper port of the ITER vacuum vessel [J]. Fusion Engineering and Design, 2007, 82: 1969–1976.

    Article  Google Scholar 

  15. COSTLEY A E, SUGIE T, VAYAKIS G, WALKER C. Technological challenges of ITER diagnostics [J]. Fusion Engineering and Design, 2005, 74: 109–119.

    Article  Google Scholar 

  16. BARABASCHI P, VERRECCHIA M, SORIN V. Summary of soil structure interaction seismic analyses of tokamak building in the candidate sites [R]. Cadarache: ITER, 2003.

    Google Scholar 

  17. GIRARD J P, GRÜNTHAL G, NICOLAS M. Design earthquakes for ITER in Europe at Cadarache [J]. Fusion Engineering and Design, 2005, 75/79: 1109–1113.

    Article  Google Scholar 

  18. XU Rong, ZHANG Hui-qiao. Earthquake response spectrum analysis and its application in isolated phase bus [J]. Machine Design and Research, 1999(1): 55–57. (in Chinese)

  19. LIU Hou-xiang, LI Ning, LIAO Xue, WU Cong-shi, PAN Xu-dong. Effective stress analysis method of seismic response for high tailings dam [J]. Journal of Central South University of Technology, 2007, 14(1): 129–134.

    Article  Google Scholar 

  20. YANG Meng-gang, HU Jian-hua, CHEN Zheng-qing. Seismic response analysis of self-anchored suspension bridge with single-tower [J]. Journal of Central South University: Science and Technology, 2005, 36(1): 133–137. (in Chinese)

    Google Scholar 

  21. FAN Qin-shan. Stress analysis and strength design of pressure vessel [M]. Beijing: Atomic Energy Press, 1989. (in Chinese)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 200031, China

    Dong-man Yu  (余东满), Da-mao Yao  (姚达毛), Han Xie  (谢韩), Li-man Bao  (鲍立曼), Tie-jun Xu  (许铁军), Yu-hua Peng  (彭玉华), Su-mei Liu  (刘素梅) & Qing-xi Yang  (杨 庆喜)

  2. Department of Mechanical Engineering, Henan Polytechnic Institute, Nanyang, 473000, China

    Dong-man Yu  (余东满)

Authors
  1. Dong-man Yu  (余东满)
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Da-mao Yao  (姚达毛)
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Han Xie  (谢韩)
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Li-man Bao  (鲍立曼)
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Tie-jun Xu  (许铁军)
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Yu-hua Peng  (彭玉华)
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. Su-mei Liu  (刘素梅)
    View author publications

    You can also search for this author in PubMed Google Scholar

  8. Qing-xi Yang  (杨 庆喜)
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Dong-man Yu  (余东满).

Additional information

Foundation item: Project(10405024) supported by the National Natural Science Foundation of China; Project supported by International Thermonuclear Experimental Reactor Organization in France

Rights and permissions

Reprints and permissions

About this article

Cite this article

Yu, Dm., Yao, Dm., Xie, H. et al. Seismic response analysis for equatorial diagnostic port plug of international thermonuclear experimental reactor. J. Cent. South Univ. Technol. 16, 112–118 (2009). https://doi.org/10.1007/s11771-009-0019-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11771-009-0019-1

Key words

Search

Navigation