| 超超临界汽轮机叶片热应力分析 |
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| 引用本文： | 张红梅,张琪,陈勇.超超临界汽轮机叶片热应力分析[J].热力透平,2011,40(4). |
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| 作者姓名： | 张红梅 张琪 陈勇 |
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| 作者单位： | 1. 上海交通大学机械与动力工程学院,上海200030;上海电气电站设备有限公司上海汽轮机厂,上海200240
2. 上海交通大学机械与动力工程学院,上海,200030 |
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| 摘 要： | 针对超超临界机组高温环境下工作的叶片的安全性需要,采用了目前在工程领域广泛应用的CFD和FEA计算理论与方法,以实际汽轮机叶片的热应力求解过程为例,从其CFD求解叶型表面对流换热系数开始,说明了采用插值程序将CFD结果插值到有限元模型的过程以及该叶片在启动过程中的温度场和应力场求解方法。对汽轮机叶片的热应力分析规范提出了建议,该规范对汽轮机叶片与轮缘进行全面的强度分析和评估是可行的。
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| 关 键 词： | 超超临界汽轮机 叶片 CFD 热应力 |
Thermal Stress Analysis of High Temperature Blade for USC Steam Turbines |
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| ZHANG Hong-mei,ZHANG Qi,CHEN Yong.Thermal Stress Analysis of High Temperature Blade for USC Steam Turbines[J].Thermal Turbine,2011,40(4). |
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| Authors: | ZHANG Hong-mei ZHANG Qi CHEN Yong |
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| Affiliation: | ZHANG Hong-mei1,2,ZHANG Qi1,CHEN Yong1(1.School of Mechanical and Power Engineering,Shanghai Jiaotong University,Shanghai 200030,China,2.Shanghai Electric Power Generation Equipment Co.,Ltd.Shanghai Turbine Plant,Shanghai 200240,China) |
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| Abstract: | For the safe demand of the blade under the high temperature in USC units,the CFD & EFA theory and method,widely applied in engineering field,are adopted,and the strength of high temperature blade root & groove for USC turbine is analyzed and evaluated.To take an example for solving the heat stress of an actual blade,starting from the solution of convective heat exchange coefficient using CFD method,the paper demonstrates the process of CFD result to the FEA model using interpolating program,as well as the s... |
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| Keywords: | USC turbine blade CFD thermal stress |
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