Research on moment force compensation in structure analysis of ITER neutron shielding block

WANG Kaisong1 CHEN Kai1 HAO Junchuan2 LIU Sumei2; 3 1

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Research on moment force compensation in structure analysis of ITER neutron shielding block

更新时间：2021-03-05

- Research on moment force compensation in structure analysis of ITER neutron shielding block
- NUCLEAR TECHNIQUES Vol. 35, Issue 12, (2012)
- 作者机构：
  
  1. 安徽理工大学
  2. 中国科学院等离子体物理研究所
  3. 安徽农业大学工学院
- 作者简介：
- 基金信息：
  
  国家重点基础研究发展计划(973计划)项目“ITER高温超导超大电流引线型超导传输线的研究”(2008CB717900);科技部ITER专项计划“ITER大型超导磁体系统馈线研究”(2008GB102000);安徽理工大学博士基金项目资助
- DOI：
  CLC： TL626
- Published：01 December 2012
- 稿件说明：
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[1]王开松,陈凯,郝俊川,刘素梅.ITER中子屏蔽块结构分析中力矩补偿问题的探讨[J].核技术,2012,35(12):949-953.

WANG Kaisong1 CHEN Kai1 HAO Junchuan2 LIU Sumei2, 3 1. Research on moment force compensation in structure analysis of ITER neutron shielding block[J]. Nuclear techniques, 2012, 35(12): 949-953.
[1]王开松,陈凯,郝俊川,刘素梅.ITER中子屏蔽块结构分析中力矩补偿问题的探讨[J].核技术,2012,35(12):949-953. DOI：

WANG Kaisong1 CHEN Kai1 HAO Junchuan2 LIU Sumei2, 3 1. Research on moment force compensation in structure analysis of ITER neutron shielding block[J]. Nuclear techniques, 2012, 35(12): 949-953. DOI：

摘要

国际热核聚变反应堆（ITER装置）的中子屏蔽块分布于超导托卡马克真空室双层壳体内部

用于屏蔽核聚变产生的中子。中子屏蔽块在正常工作状况下将受到重力、涡流电磁力和地震载荷等影响。为校核其结构强度

对其受力进行整体结构分析。在中子屏蔽块的结构分析过程中

由涡流引起的电磁力所产生的力矩与所给定力矩的大小不相同。为了使其结构分析能模拟真实工况

分析的结果更准确

分析过程中采用了添加力矩补偿的方式。文中运用ANSYS软件分别对中子屏蔽块添加力矩补偿和不添加力矩补偿两种方法进行结构分析

并对分析结果进行比较。结果表明

补偿力矩的添加对屏蔽块各附件的应力大小影响很大

因此用力矩补偿方法分析得到的结果更能保证分析结果的准确性

且使中子屏蔽块设计的安全性和可靠性大大提高。此方法可为同样有力矩存在的结构分析提供有力的参考依据。

Abstract

Background: In-wall shielding blocks which distribute within the double shell of Superconducting Tokamak vacuum vessel of the ITER projects

are used to shield neutrons produced by nuclear fusion.The moment deriving from the eddy current force is different from what is defined by the ITER IO in the structural analysis of ITER in-wall Shielding(IWS) block.Purpose: In order to simulate the real condition and get more accurate results

the method of moment compensation has been adopted.Methods: Both of adding and no-adding compensation moment conditions have been carried out separately in the structural analysis of the IWS based on ANSYS

and the corresponding results have been compared in the article.Results: The result shows the compensation moments have significant influence on the stress intensity of the components of in-wall shielding block.Conclusions: The accuracy of IWS structure simulation analyses results have been ensured by adding the compensation moment.The safety and reliability for design of in-wall shielding blocks are greatly improved.

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