非均匀静子布局对转子叶片振动的影响

推进技术 ›› 2015, Vol. 36 ›› Issue (7): 1078-1084.

非均匀静子布局对转子叶片振动的影响

牛永红¹,侯安平¹,张明明²,郭昊雁³,孙天瑞¹

北京航空航天大学能源与动力工程学院，北京 100191,北京航空航天大学能源与动力工程学院，北京 100191,北京大学工学院，北京 100871,北京动力机械研究所，北京 100074,北京航空航天大学能源与动力工程学院，北京 100191

发布日期:2021-08-15
作者简介:牛永红(1989—)，女，硕士生，研究领域为航空发动机气动热力学。
基金资助:
国家自然基金(60934001；51306003)。

Effects of Asymmetric Vane Spacing on Rotor Blade Vibration

School of Energy and Power Engineering，Beihang University，Beijing 100191，China,School of Energy and Power Engineering，Beihang University，Beijing 100191，China,College of Engineering，Peking University，Beijing 100871，China,Beijing Power Machinery Institute，Beijing 100074，China and School of Energy and Power Engineering，Beihang University，Beijing 100191，China

Published:2021-08-15

摘要/Abstract

摘要： 采用时域上的流固耦合模拟方法分析了非均匀静子布局对下游转子叶片表面气流激振力及转子叶片动力响应水平的影响。主要分析了两扇区不同气流角和不同叶片栅距这两种非均匀布局类型。结果表明，转子叶片的振动特性主要体现为上游静子尾迹激励下的强迫响应，在上游非均匀静子布局下，其由单频高幅值振动转变为多频低幅值振动；不同栅距类型更利于降低叶片振动响应水平，两扇区栅距变化为4%~5%时最佳。在此模型里方案四在静子通过频率处应力幅值降低28%，为最优布局。

关键词: 叶片；转子；强迫响应；减振；非均匀；流固耦合

Abstract: The effects of asymmetric vane spacing on the aerodynamic force on the surface and the dynamic response level of the downstream rotor blade were analyzed using the fluid-structure interaction method in the time-domain. Two different types of asymmetric vane spacing，variation of the flow angle and variation of the vane spacing were studied. The results show that the vibration of the rotor blade is forced response under the wake excitation from upstream. The single-frequency of high amplitude of blade vibration is changed to the multi-frequency of low amplitude due to the upstream asymmetric vane spacing. The reduction of the dynamic response level under variation of the vane spacing is more advantageous，and the effect is optimal when vane spacing variation of two segments is between 4%~5%. In this model，case 4 is optimal because of the reduction of 28% on the amplitude of the vane passing frequency.

Key words: Blade；Rotor；Forced response；Vibration reduction；Asymmetric；Fluid-structure interaction

牛永红,侯安平,张明明,郭昊雁,孙天瑞. 非均匀静子布局对转子叶片振动的影响[J]. 推进技术, 2015, 36(7): 1078-1084.

NIU Yong-hong¹,HOU An-ping¹,ZHANG Ming-ming²,GUO Hao-yan³,SUN Tian-rui¹. Effects of Asymmetric Vane Spacing on Rotor Blade Vibration[J]. Journal of Propulsion Technology, 2015, 36(7): 1078-1084.

参考文献

[1] 洪杰, 张大义, 陈璐璐.气流激励下的叶片高周疲劳寿命研究的发展 [J]. 航空动力学报, 2009, 24(3):652-661.
[2] 熊劲松, 侯安平, 周盛. 压气机级间尾迹非定常流动的分析与利用途径探索 [J]. 工程热物理学报, 2007, 28(1):43-45.
[3] 祁明旭, 丰镇平. 动静干涉效应对轴流透平级气动性能的影响 [J]. 工程热物理学报, 2003, 24(1): 39-42.
[4] Kemp R H, Hirschberg M H. Theoretical and Experimental Analysis of the Reduction of Rotor Blade Vibration in Turbomachinery Through the Use of Modified Stator Vane Spacing[R]. NACA-TN-4373, 1958.
[5] Gottfried D A, Fleeter S. Passive Detuning for HCF Reduction[R]. AIAA 2002-3634.
[6] Kaneko Y, Mori K, Okui H. Study on the Effect of Asymmetric Vane Spacing on Vibratory Stress of Blade[R]. ASME GT 2004-53023.
[7] 孟越, 李琳, 李其汉. 气动非谐对叶片非定常气动激振力影响[J].航空动力学报, 2007, 22(7):1060-1064.
[8] 孟越, 李琳, 李其汉. 不对称静子尾迹激振力分析及计算方法[J].北京航空航天大学学报, 2007, 33(9):1005-1008.
[9] 孟越, 李琳, 李其汉. 不对称静子叶片非谐方案研究[J].航空动力学报, 2007, 22(12):2083-2088.
[10] 刘建勇, 李志平, 陆亚钧, 等.非轴对称导叶尾迹对低速轴流压气机的影响[J]. 航空动力学报, 2009, 24(8):1799-1804.
[11] Liu J Y, Yuan W, Hao X L, et al. Experiment on Treating Block Number of Non-Axisymmetric Casing Treatment [J]. Journal of Propulsion Technology, 2009, 30(4):434-438.
[12] Sullivan B M, Edwards B D, Brentner K S, et al. A Subjective Test of Modulated Blade Spacing for Helicopter Main Rotors[C].Canada:AHS International 58th Annual Forum and Technology Display, Montreal, 2002.
[13] Bryan D, Edwards. Psychoacoustic Testing of Modulated Blade Spacing for Main Rotors[R].NASA CR 2002-211651.
[14] 王勖成, 邵敏. 有限单元法基本原理和数值方法[M]. 北京:清华大学出版社, 1996.
[15] Zhang M M, Hou A P, Zhou S. Analysis on Flutter Characteristics of Transonic Compressor Blade Row by a Fluid-Structure Coupled Method[R]. ASME GT 2012-69439.
[16] Doi H, Alonso J J. Fluid/Structure Coupled Aeroelastic Computations for Transonic Flows in Turbomachinery[R]. ASME GT 2002-30313.
[17] Niu Y H, Hou A P, Zhang M M, et al. Investigation on the Effect of Asymmetric Vane Spacing on the Reduction of Rotor Blade Vibration [R]. ASME GT 2014-26710.(编辑:史亚红)　　　　　　　　　　　　　*　收稿日期:2014-05-05；修订日期:2014-07-17。基金项目:国家自然基金(60934001；51306003)。作者简介:牛永红(1989—),女,硕士生,研究领域为航空发动机气动热力学。E-mail:niuyh2039@163.comFig.10　Time-history curves of static pressure