| 引用本文: | 张建平,刘宇,张凯歌,朱翔宇,祝铭.储能钠硫电池β″-Al2O3陶瓷管强度分析[J].材料科学与工艺,2014,22(6):118-122.DOI:10.11951/j.issn.1005-0299.20140621. |
| ZHANG Jianping,LIU Yu,ZHANG Kaige,ZHU Xiangyu,ZHU Ming.Strength analysis of β″-Al2O3 ceramics tubes for energy storage sodium sulfur batteries[J].Materials Science and Technology,2014,22(6):118-122.DOI:10.11951/j.issn.1005-0299.20140621. |
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| 摘要: |
| 针对储能钠硫电池中核心结构部件β″-Al2O3陶瓷管容易失效的问题,利用柱壳理论建立陶瓷管数学模型,采用ANSYS软件进行实体建模与数值模拟,并给出了陶瓷管壁厚、直径、长度与其机械强度的定量关系.结果表明:陶瓷管最大应力发生于根部,最大应力随壁厚的减小而增大,随直径的增大而增大,但与长度基本无关,陶瓷管关于壁厚和直径临界曲线基本呈线性关系,这为陶瓷管机械强度的优化设计提供量化依据. |
| 关键词: 钠硫电池 陶瓷管 强度分析 最大应力 临界曲线 |
| DOI：10.11951/j.issn.1005-0299.20140621 |
| 分类号:TM911；TB24 |
| 基金项目:上海市科学技术委员会项目(0,1DZ0,9DJ1400204)、上海市优秀学科带头人计划(B类)项目(13XD1425200)、上海市教育委员会科研创新项目(11ZZ1,3ZZ130)、上海市教育委员会曙光计划项目(09SG51)、上海市教委重点学科(第五期)J51304、国家自然科学基金项目(5,7). |
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| Strength analysis of β″-Al2O3 ceramics tubes for energy storage sodium sulfur batteries |
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ZHANG Jianping1, LIU Yu2, ZHANG Kaige1, ZHU Xiangyu3, ZHU Ming3
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(1. College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China; 2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;3. Shanghai Electric Sodium-sulfur Batteries Energy-storage Technology Co., Ltd, Shanghai 201815, China)
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| Abstract: |
| Aiming at the problem of easy failure of the β ″-Al2O3 ceramic tube which is the core component of energy storage sodium sulfur battery, the mathematical model of ceramic tubes was built by using cylindrical shell theory, and the solid model and the numerical simulation were carried out by using ANSYS software. The quantitative relationships among the wall thickness, the diameter, the length for the ceramic tube and its mechanical strength were given. The results indicate that the maximum stress is located at the root of ceramic tubes, and increases with the decrease of the wall thickness or the increase of the diameter, but it is almost independent of the length, and the critical curve between the wall thickness and the diameter for ceramic tubes almost presents the linear trend, which provides quantitative guidance for optimal design of mechanical strength for ceramic tubes. |
| Key words: sodium sulfur battery, ceramics tube, strength analysis, maximum stress, critical curve |
