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| 宽弦空心风扇叶片流固耦合作用下的叶片响应分析 | |
| 引用本文： | 王营,陶智,杜发荣,郝勇. 宽弦空心风扇叶片流固耦合作用下的叶片响应分析[J]. 航空动力学报, 2008, 23(12): 2177-2183 |
| 作者姓名： | 王营 陶智 杜发荣 郝勇 |
| 作者单位： | 1.北京航空航天大学 能源与动力工程学院 航空发动机气动热力重点实验室, 北京 100191 |
| 基金项目： | 新世纪优秀人才支持计划(NCET-05-0189) |
| 摘 要： | 利用数值模拟的方法,对宽弦空心风扇叶片在空气场作用下的瞬态响应进行了研究.采用流固耦合数值计算方法,得到了某宽弦空心风扇叶片在非定常边界条件下的变形响应.计算结果表明,叶片在空气场的作用下,最大位移发生在叶片前缘叶尖处,在沿叶展方向与叶片内部芯板结构沿叶展方向分布重合处产生应力集中,应力值由叶片表面向叶片内部逐渐减小,内部芯板虽然厚度较薄,但分布应力值均较小,且应力集中发生在叶片表面.气动力与叶片结构之间的耦合作用,使叶片结构模态振型沿周向不再均匀分布.叶片在气固耦合时的变形响应以绕旋转轴的弯曲振动为主,接近叶片的一阶模态变形. |
| 关 键 词： | 数值模拟 宽弦空心风扇叶片 流固耦合 变形响应 |
| 收稿时间： | 2007-09-01 |
| 修稿时间： | 2008-11-16 |
Response analysis of fluid and solid coupling characteristics for a wide-chord hollow fan blade |
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| WANG Ying,TAO Zhi,DU Fa-rong and HAO Yong. Response analysis of fluid and solid coupling characteristics for a wide-chord hollow fan blade[J]. Journal of Aerospace Power, 2008, 23(12): 2177-2183 | |
| Authors: | WANG Ying TAO Zhi DU Fa-rong HAO Yong |
| Affiliation: | 1.National Key Laboratory on Aero-Engines, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China2.Shenyang Aeroengine Research Institute, Shenyang 110015, China |
| Abstract: | By using the numerical simulation method,the transient response of a wide-chord hollow fan blade was investigated under the atmospheric flow field.The deformation response of the wide-chord hollow fan blade was obtained under unsteady boundary conditions with the fluid-structure interaction numerical simulation method.Computational results show that,under the action of the air flow field,the largest displacement occurs in the top of the front blade and the stress concentration is resulted from the superposi... |
| Keywords: | numerical simulation wide-chord hollow fan blade a coupled-field analysis deformation response |
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