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核电厂稳压器贯穿接管的修复和结构完整性评估
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作者 马琳伟 何家胜 +2 位作者 舒安庆 郑小涛 徐建民 《核科学与技术》 2017年第1期36-48,共13页
较早期核电厂的压力容器封头上的贯穿接管材料多为600合金,由于600合金对一回路水环境应力腐蚀开裂的抗性较差,易产生应力腐蚀裂纹贯穿压力边界而导致泄漏,可采用修复方法使用690合金接管更换损坏的接管,重构压力边界。为确保新压力边... 较早期核电厂的压力容器封头上的贯穿接管材料多为600合金,由于600合金对一回路水环境应力腐蚀开裂的抗性较差,易产生应力腐蚀裂纹贯穿压力边界而导致泄漏,可采用修复方法使用690合金接管更换损坏的接管,重构压力边界。为确保新压力边界能够达到原始设计要求,对重构压力边界的新接管及其焊缝进行结构完整性分析。对稳压器顶盖上的贯穿接管,进行重构压力边界的焊接修复和结构完整性评估,基于有限元分析获得工况瞬态热应力和焊接残余应力的基础上,依据ASME规范进行应力强度校核,并通过断裂力学计算分析假想裂纹在核电厂40年设计寿命内的扩展及稳定性,分析结果表明修复后的结构满足设计和使用要求。 展开更多
关键词 贯穿接管 应力强度 疲劳裂纹扩展 稳压器 焊接修复
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Design of New-generation Electric Vehicle Terminal
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作者 Lei Li Xin Lu +2 位作者 jiasheng he Zhe Sun Guang Yang 《Energy and Power Engineering》 2013年第4期1362-1366,共5页
EVT (electric vehicle terminal) has played an important role in EV (electric vehicle) operation. Based on research status of vehicle terminal, EVT brought about in the future should have the following functions: (1) f... EVT (electric vehicle terminal) has played an important role in EV (electric vehicle) operation. Based on research status of vehicle terminal, EVT brought about in the future should have the following functions: (1) fundamental functions, including real-time monitoring of batteries, guidance in station, position guidance of charging/battery-swap infrastructures, communication with OMS (operation and management system), and so on;(2) advanced functions, including but not limited to multi-media entertainment, subscribing and payment for charging/battery-swap, identification, and safety control during driving. Complete design of new-generation EVT in software structure and hardware architecture is proposed;a new idea of the application of EVT in EV industry is put forward. 展开更多
关键词 EV (electric vehicle) Power Battery EVT (electric VEHICLE terminal)
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