| 风扇机匣的减振优化设计 |
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| 引用本文： | 蔡显新,肖新红,王涛,吴志清.风扇机匣的减振优化设计[J].航空动力学报,2010,25(2):396-401. |
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| 作者姓名： | 蔡显新 肖新红 王涛 吴志清 |
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| 作者单位： | 中国航空工业集团公司,中国航空动力机械研究所,株洲,412002 |
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| 基金项目： | 航空基金，国防科技创新团队项目 |
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| 摘 要： | 涡扇发动机风扇叶片的强大尾迹容易激起风扇机匣的高频行波共振.针对某涡扇发动机风扇机匣曾出现的振动过大的现象,分析了引起的原因,研究了减振措施,在此基础上提出了以减小振动为主要目的风扇机匣结构优化设计方法.机匣优化前后的整机试验测试结果表明,该方法是非常有效的.
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| 关 键 词： | 风扇机匣 行波振动 优化设计 叶片尾流 发动机试验 |
| 收稿时间： | 2009/2/13 0:00:00 |
| 修稿时间： | 9/7/2009 10:01:39 PM |
Optimization design of a fan casing for reducing vibration |
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| CAI Xian-xin,XIAO Xin-hong,WANG Tao and WU Zhi-qing.Optimization design of a fan casing for reducing vibration[J].Journal of Aerospace Power,2010,25(2):396-401. |
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| Authors: | CAI Xian-xin XIAO Xin-hong WANG Tao and WU Zhi-qing |
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| Institution: | China Aviation Powerplant Research Institute |
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| Abstract: | High frequency traveling vibration of a fan casing may be excited by the wake of rotating fan blades. High vibration level of a fan casing was observed during the test of a turbofan engine, the causes of which was analyzed, the structural modification measures which can be taken to reduce the vibration were investigated and a casing structural optimal method for reducing vibration was proposed. Casings, before and after optimization, vibration experiments were carried out. The results indicate that the optimal method presented here was efficient. |
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| Keywords: | fan casing traveling vibration optimization design blade wake flow aero-engine test |
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