| 基于能量法的跨声速风扇叶片气弹稳定性研究 |
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| 引用本文： | 赵瑞勇,杨慧,王延荣.基于能量法的跨声速风扇叶片气弹稳定性研究[J].航空发动机,2011,37(3):41-46. |
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| 作者姓名： | 赵瑞勇 杨慧 王延荣 |
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| 作者单位： | 西安航天动力研究所,西安710100 [2]北京航空航天大学能源与动力工程学院,北京100191 |
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| 摘 要： | 基于能量法原理,采用弱耦合的方法对跨声速风扇叶片进行气弹稳定性分析;采用3维线性插值算法编程实现CSD/CFD数据交换。利用有限元法计算叶片的模态振型和固有振动频率;应用FLUENT动网格技术,对NASA R 67风扇叶片在不同模态振动下的非定常流场进行数值模拟,给出在前3阶模态振动下叶片表面的周期累积气动功和气动阻尼,并探讨了激波对跨声速风扇叶片气弹稳定性的影响。
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| 关 键 词： | 叶轮机 风扇叶片 能量法 模态 动网格 气动功 CSD/CFD |
Rearch on Aeroelastic Stability of Transonic Fan Blade Based on Energy Method |
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| Authors: | ZHAO Rui-yong YANG Hui WANG Yan-rong |
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| Institution: | ZHAO Rui-yong1,YANG Hui2,WANG Yan-rong2 (1.Xi'an Aerospace Propulsion Institute,Xi'an 710100,China,2.School of Jet Propulsion,Beihang University,Beijing,100191,China) |
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| Abstract: | Based on energy method,the aeroelastic stability of transonic fan blade was analyzed by weak coupling method.The data exchange of CSD/CFD was achieved by the 3D linear interpolation method.The mode shape and natural frequency of the blade was calculated by the Finite Element(FE) method.The numerical simulation of the unsteady flow field for NASA R67 fan blade in the different vibration modes was conducted by the FLUENT dynamic mesh technology.The cycle accumulated aerodynamic work and aerodynamic damping of... |
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| Keywords: | turbomachinery fan blade energy method mode dynamic mesh grid aerodynamic work CSD/CFD |
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