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| 薄壁外压圆筒的模糊可靠度 | |
| 引用本文： | 刘岑,吴元祥,刘小宁. 薄壁外压圆筒的模糊可靠度[J]. 化工装备技术, 2013, 34(2): 27-29 |
| 作者姓名： | 刘岑 吴元祥 刘小宁 |
| 作者单位： | 1. 武汉工程大学机电工程学院 2. 武汉软件工程职业学院机械制造工程系 3. 武汉工程大学机电工程学院;武汉软件工程职业学院机械制造工程系 |
| 基金项目： | 湖北省教育厅科研项目,武汉市创新人才开发资金重大创新专项资助项目 |
| 摘 要： | 考虑钢制薄壁外压圆筒临界失稳强度和载荷的模糊不确定性,应用模糊可靠性理论分析其模糊可靠度。研究表明:如果置信度为98%,钢制薄壁外压圆筒临界失稳强度的模糊可靠度,在外压试验时为0.999 999 9870.999 999 998,在正常操作时为0.999 999 9710.999 999 998,在正常操作时为0.999 999 9710.999 999 996。 |
| 关 键 词： | 薄壁外压圆筒 临界失稳强度 模糊可靠度 压力容器 载荷 正态分布 |
Fuzzy Reliability of Thin-walled External Pressure Cylinder |
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| Liu Cen , Wu Yuanxiang , Liu Xiaoning. Fuzzy Reliability of Thin-walled External Pressure Cylinder[J]. Chemical Equipment Technology, 2013, 34(2): 27-29 | |
| Authors: | Liu Cen Wu Yuanxiang Liu Xiaoning |
| Affiliation: | Liu Cen Wu Yuanxiang Liu Xiaoning |
| Abstract: | Considering the fuzzy uncertainty of critical buckling strength and load of steel thin-walled external pressure cylinder, the fuzzy reliability was analyzed with fuzzy reliability theory. The research showed that if the confidence level was 98%, the fuzzy reliability of critical buckling strength of the steel thin-walled external pressure vessel was 0.999 999 987 - 0.999 999 998 during external pressure test, and 0.999 999 971 - 0.999 999 996 during normal operation. |
| Keywords: | Thin-walled external pressure cylinder Critical buckling strength Fuzzy reliability Pressure vessel Load Normal distribution |
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