| 涡轮盘径向变形非线性动态概率分析 |
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| 引用本文： | 赵合阳,白广忱,费成巍,邢伟震.涡轮盘径向变形非线性动态概率分析[J].北京航空航天大学学报,2013,39(7):927-931. |
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| 作者姓名： | 赵合阳 白广忱 费成巍 邢伟震 |
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| 作者单位： | 北京航空航天大学能源与动力工程学院,北京,100191;中国人民解放军空军93705部队,遵化,064200 |
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| 基金项目： | 国家自然科学基金资助项目(51275024,51175017) |
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| 摘 要： | 为了合理设计和控制叶尖间隙,对涡轮盘径向变形进行非线性动态概率分析.考虑材料属性的非线性和载荷的动态性进行轮盘径向变形的确定性分析,得出轮盘变形随时间变化规律,找出了涡轮盘变形最大值.通过轮盘变形的概率分析得到:轮盘径向变形的分布特征、不同径向变形设计值δ下的失效数和可靠度、不同可靠度下的各随机参数的极限值,影响涡轮盘径向变形的随机参数的灵敏度.
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| 关 键 词： | 径向变形 概率分析 非线性 动态 响应面法 |
| 收稿时间： | 2012-07-23 |
Probabilistic analysis for turbine disc radial displacement |
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| Zhao Heyang Bai Guangchen Fei ChengweiSchool of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing,ChinaXing Weizhen.Probabilistic analysis for turbine disc radial displacement[J].Journal of Beijing University of Aeronautics and Astronautics,2013,39(7):927-931. |
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| Authors: | Zhao Heyang Bai Guangchen Fei ChengweiSchool of Jet Propulsion Beijing University of Aeronautics and Astronautics Beijing ChinaXing Weizhen |
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| Institution: | 1. School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. 93705 PLA Troops, Zunhua 064200, China |
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| Abstract: | To reasonably design and control blade-tip clearance, the nonlinear and dynamic probabilistic analysis of disk radial deformation was studied based on finite element model (FEM) and response surface method (RSM). Through deterministic analysis of disk deformation considering material nolinear and loads dynamic, the disk radial deformation change with time and the maximum value of disk deformation were gained. It was available to the distribution feature of disk deformation, the failure number and reliability degrees under different radial deformation preset value δ, the limit values of random parameters under different reliabilities and the sensitivities of random parameters influencing the disk radial deformation. |
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