| 快速查找电力电缆故障浅谈 |
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| 引用本文： | 张德峰.快速查找电力电缆故障浅谈[J].中华医学图书情报杂志,2013(4):31-36. |
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| 作者姓名： | 张德峰 |
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| 作者单位： | 中国航天科工集团三十一研究所 高超声速冲压发动机技术重点实验室,北京 100074;中国航天科工集团三十一研究所 高超声速冲压发动机技术重点实验室,北京 100074;中国航天科工集团三十一研究所 高超声速冲压发动机技术重点实验室,北京 100074;中国航天科工集团三十一研究所 高超声速冲压发动机技术重点实验室,北京 100074;中国航天科工集团三十一研究所 高超声速冲压发动机技术重点实验室,北京 100074 |
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| 摘 要： | 为了能在双模态超燃冲压发动机流道方案初步论证中提供一种较快速的发动机性能计算方法,在二维N-S方程基础上,引入一维完全燃烧计算方法,提出了预估超燃冲压发动机性能的准二维计算方法。该方法能够计入激波、边界层分离等对发动机性能的影响,可在较短时间计算出整机推力、比冲性能和沿程热力学参数。通过对自由射流发动机计算,验证了此方法。并在此基础上,初步分析了燃料喷注位置和流道构型对发动机性能的影响。
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| 关 键 词： | 超燃冲压发动机 性能预估 数值模拟 |
Discussion on Fault Searching of Power Cables |
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| ZHANG De-feng.Discussion on Fault Searching of Power Cables[J].Chinese Journal of Medical Library and Information Science,2013(4):31-36. |
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| Authors: | ZHANG De-feng |
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| Institution: | Science and Technology on Scramjet Laboratory, The 31st Research Institute of CASIC, Beijing 100074, China;Science and Technology on Scramjet Laboratory, The 31st Research Institute of CASIC, Beijing 100074, China;Science and Technology on Scramjet Laboratory, The 31st Research Institute of CASIC, Beijing 100074, China;Science and Technology on Scramjet Laboratory, The 31st Research Institute of CASIC, Beijing 100074, China;Science and Technology on Scramjet Laboratory, The 31st Research Institute of CASIC, Beijing 100074, China |
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| Abstract: | Efficient fault searching of power supply cables is decisive to improve fault handling speed, reliability and stability of power supply. The paper introduces several reasons for cable faults, fault types, methods for fault searching and location of faulty point. There are diverse means and methods for fault searching of power cables. By combining the practical experience, more efficient and reasonable test methods and means are proposed in accordance to different faults and properties. |
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| Keywords: | Scramjet Performance evaluation Numerical simulation |
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