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ITER PF6大型超导磁体线圈吊装精密准直测量关键技术
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作者 顾永奇 郑元阳 +4 位作者 袁忠 王琳 邓磊 李志虎 ITER TAC项目联合体团队 《核聚变与等离子体物理》 北大核心 2025年第1期19-26,共8页
PF6超导磁体线圈是ITER装置上首个吊装且重量最重的磁体线圈,其吊装精度直接影响后续部件的安装。根据ITER总装厂房和装置大厅的结构状况、基准分布和通视条件等,通过对线圈吊具负载变形测试、吊装测试、线圈方位调整、吊装路径、最终... PF6超导磁体线圈是ITER装置上首个吊装且重量最重的磁体线圈,其吊装精度直接影响后续部件的安装。根据ITER总装厂房和装置大厅的结构状况、基准分布和通视条件等,通过对线圈吊具负载变形测试、吊装测试、线圈方位调整、吊装路径、最终定位等阶段的准直测量过程进行的模拟测量分析,简化了测量方案,优化了准直测量关键步骤,保证了ITER TAC1项目进度。实现了PF6线圈一次性吊装落位精度±4mm的要求,经评估测量不确定度为0.66mm,满足ITER公差与测量不确定度比值不小于5的准则要求。 展开更多
关键词 ITER PF6线圈 精密吊装 准直测量 测量模拟分析
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Prediction of multi-borehole undermine coalbed gas drainage 被引量:1
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作者 ZHANG Zhi-gang 《Journal of Coal Science & Engineering(China)》 2009年第3期295-298,共4页
By analyzing the flow character of a single drainage borehole in its effectingtime and the correlative theory introduced,the reason for 'inflexion' appearance in theflow character curve of the single draining ... By analyzing the flow character of a single drainage borehole in its effectingtime and the correlative theory introduced,the reason for 'inflexion' appearance in theflow character curve of the single draining borehole in a multi-borehole was studied.Takingthe theory of permeation fluid mechanics and so on as basis,the coalbed gas flowmodel was set up,and the numerical simulation analyzer was built for undermine gasproducts.With the results from the analyzer,the gas capacity could be calculated underdifferent conditions and comparisons made with the site measurement data. 展开更多
关键词 multi-borehole undermine coalbed gas drainage capacity prediction
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