Bearing Capacities of the Structure and Joint of JUNO Central Detector
Bearing Capacities of the Structure and Joint of JUNO Central Detector
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DOI：
10.3311/ppci.8551
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发表时间：
2016-08
影响因子：
1.8
通讯作者：
Zongyi Wang;Yuangqing Wang;Y. Heng;Xinxi Du;Z. Qin
中科院分区：
文献类型：
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作者：
Zongyi Wang;Yuangqing Wang;Y. Heng;Xinxi Du;Z. Qin
江门地下中微子观测站（JUNO）中心探测器将放置在地下，用于探测中微子。为了实现JUNO的可行方案，设计了双层不锈钢网壳支撑亚克力球的结构方案，并利用ABAQUS软件进行了建模。研究了结构在工作状态下的承载力，分析了外界因素对结构承载力的影响。为了研究该方案中亚克力与不锈钢连接节点的承载性能，进行了三个节点试件的试验，并将试验结果与有限元（FE）预测结果进行了比较。结果表明，在外界因素的影响下，结构是安全可靠的。节点的承载力至少为设计荷载的2倍，亚克力板上的应力限制在10MPa以内。
The Jiangmen Underground Neutrino Observatory (JUNO) central detector will be placed underground to detect neutrinos. In order to achieve the feasible scheme for JUNO, the structural scheme of an acrylic ball supported by a double-layer stainless steel latticed shell is designed and modeled using ABAQUS software. The bearing capacity of the structure under working condition is investigated and influences of external factors are analyzed. For the purpose of studying the load-bearing behavior of the joint of acrylic and stainless steel in this scheme, tests of three joint specimens are conducted and the results are compared with finite element (FE) predictions. It is concluded that the structure is safe and reliable under the effects of external factors. The bearing capacity of the joint is at least 2 times as large as the design load and the stress on the acrylic is limited within 10MPa.