| 反应堆压力容器主螺栓预紧工艺优化仿真分析 |
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| 引用本文： | 王小兵,隆 涛,樊一军,文小军.反应堆压力容器主螺栓预紧工艺优化仿真分析[J].核动力工程,2018,39(6):64-68. |
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| 作者姓名： | 王小兵 隆 涛 樊一军 文小军 |
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| 摘 要： | 应用商业软件ANSYS模拟了反应堆压力容器主螺栓十字拉伸3级预紧过程，对其预紧工艺进行了仿真优化分析。分析结果表明:3级加载方式中第1级采用对称加载、第2级采用间隔加载、第3级采用顺序加载得到的主螺栓不均匀度和离散度最小；第3级预紧采用变载荷能明显减小主螺栓的不均匀度和离散度，提高反应堆压力容器的密封性能。
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| 关 键 词： | 反应堆压力容器 主螺栓 预紧工艺 不均匀度 离散度 |
Optimization?Analysis about Pre-Tightening Technology of Stud?for Reactor Pressure Vessels |
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| Abstract: | The pre-tightening process of the stud for reactor pressure vessels?with three steps?used for stretcher which are orthogonal has been studied by software ANSYS,?and the optimization?analysis have been carried out. The numerical results showed as follows: The studs which were loaded symmetrically?at the first step, at interval at the second step and sequentially at the last step have small non-uniformity and dispersion. The non-uniformity and dispersion can be decreased obviously when the studs were?with variable loads?at?the?last step, thus to?strengthen?the sealing of?the?reactor pressure vessel. |
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