配合间隙对涡轮叶片榫头/榫槽接触的影响

推进技术 ›› 2015, Vol. 36 ›› Issue (1): 112-118.

配合间隙对涡轮叶片榫头/榫槽接触的影响

王少飞¹,温志勋¹,郜玉芬²,刘海¹,岳珠峰¹

西北工业大学力学与土木建筑学院，陕西西安 710129,西北工业大学力学与土木建筑学院，陕西西安 710129,西安建筑科技大学土木工程学院，陕西西安 710055,西北工业大学力学与土木建筑学院，陕西西安 710129,西北工业大学力学与土木建筑学院，陕西西安 710129

发布日期:2021-08-15
作者简介:王少飞(1988—)，男，博士生，研究领域为航空发动机涡轮叶片强度分析。
基金资助:
国家自然科学基金(51210008， 51175424)；西北工业大学研究生创业种子基金(Z2014046)。

Effects of Contact Gap on Contact Properties of Turbine Blade Tenon /Mortise

Civil Engineering and Architecture，Northwestern Polytechnical University，Xi’an 710072，China,Civil Engineering and Architecture，Northwestern Polytechnical University，Xi’an 710072，China,School of Civil Engineering，Xi’an University of Architecture and Technology，Xi’an 710055，China,Civil Engineering and Architecture，Northwestern Polytechnical University，Xi’an 710072，China and Civil Engineering and Architecture，Northwestern Polytechnical University，Xi’an 710072，China

Published:2021-08-15

摘要/Abstract

摘要： 采用率相关晶体塑性滑移理论模型，考虑镍基单晶的晶体取向和涡轮盘/片配合间隙的影响，针对涡轮叶片榫头/榫槽的复杂接触状况，研究了温度梯度载荷和离心载荷作用下三种取向的接触应力和低周疲劳损伤。结果表明:当榫头/榫槽的配合间隙小于3.7μm时，榫头/榫槽的接触应力随间隙值突变比较明显；而间隙值大于5.4μm时影响较小。接触应力和低周疲劳寿命对第一齿间隙值比较敏感，随间隙值的波动变化范围较大；第二齿的间隙对接触应力影响也较大，但对疲劳寿命的影响只在较小间隙值下较为明显。晶体取向对榫头/榫槽接触低周疲劳寿命有比较显著的影响，表现出明显的疲劳性能各向异性。

关键词: 晶体取向；配合间隙；榫头/榫槽；疲劳损伤

Abstract: Considering the impact of crystal orientation of nickel based single-crystal and contact gap， the rate-dependent crystal plasticity constitutive model was employed to calculate the contact stress and fatigue damage under the temperature gradient load and centrifugal load for turbine blade tenon/mortise complex exposure situation. The results show that contact stress of tenon/mortise mutated very obviously when the gap is less than 3.7μm，but contact gap has less influence on the stress of tenon/mortise when gap is more than 5.4μm. Contact stress and fatigue life are sensitive to the first tooth gap and vary greatly. The second tooth gap also has some influence on contact stress，but the impact on the fatigue life is only obvious among the smaller gap value. Crystal orientation also plays a relatively significant role on the fatigue life，showing the anisotropy of fatigue properties obviously.

Key words: Crystal orientation；Contact gap；Tenon /mortise；Fatigue damage

王少飞,温志勋,郜玉芬,刘海,岳珠峰. 配合间隙对涡轮叶片榫头/榫槽接触的影响[J]. 推进技术, 2015, 36(1): 112-118.

WANG Shao-fei¹,WEN Zhi-xun¹,GAO Yu-fen²,LIU Hai¹,YUE Zhu-feng¹. Effects of Contact Gap on Contact Properties of Turbine Blade Tenon /Mortise[J]. Journal of Propulsion Technology, 2015, 36(1): 112-118.

参考文献

[1] 郑旭东, 蔚夺魁, 王兆丰, 等. 某型航空发动机涡轮叶片和轮盘榫齿裂纹故障力学分析[J]. 航空发动机, 2005, 31(3): 35-38.
[2] 汤凤, 孟光. 带冠涡轮叶片的接触分析[J]. 噪声与振动控制, 2005,(04): 5-7.
[3] 彭茂林, 杨自春, 曹跃云, 等. 配合间隙对涡轮盘-片结构的接触响应影响分析[J]. 航空动力学报, 2011, 26(4): 779-786.
[4] Papanikos P, Meguid S A, Czekanski A. Finite Element Analysis of Fir-Tree Region in Turbine Discs [J].Finite Element in Analysis and Design, 2000, 35: 305-317.
[5] 付娜. 某航空发动机涡轮盘和叶片的强度分析和寿命计算[D]. 西安:西北工业大学, 2006.
[6] 岳珠峰, 于庆民, 温志勋, 等. 镍基单晶涡轮叶片结构强度设计[M]. 北京:科学出版社, 2008.
[7] 魏大盛, 王延荣. 枞树形榫连接结构接触应力的有限元分析及建模研究[J]. 燃气涡轮试验与研究, 2010,23(2): 5-9.
[8] Lavella M, Botto D. Fretting Wear Characterization by Point Contact of Nickel Superalloy Interfaces[J]. Wear, 2011, 271(9-10): 1543-1551.
[9] 赵霞. 某涡浆发动机涡轮转子强度与寿命计算[D]. 南京:南京航空航天大学, 2005.
[10] Taylor G I. Plastic Strain in Metals[J]. Institute of Metals, 1938, 62: 307-324.
[11] Levkovitch V, Sievert R, Svendsen B. Simulation of Deformation and Lifetime Behavior of a Fcc Single Crystal Superalloy at High Temperature Under Low-Cycle Fatigue Loading[J]. International Journal of Fatigue, 2006, 28(12): 1791-1802.
[12] Hou N X, Yu Q M, Wen Z X, et.al. Low Cycle Fatigue Behavior of Single Crystal Superalloy with Temperature Gradient [J]. European Journal of Mechanics A-Solids, 2010, 29(4): 611-618.
[13] 丁智平, 刘义伦, 尹泽勇, 等. 燃气涡轮转子盘-片系统三维非线性循环应力-应变分析[J]. 机械设计,2004, 21(8): 38-40.
[14] 陈立杰, 谢里阳. 某低压涡轮工作叶片高温低循环疲劳寿命预测[J]. 东北大学学报, 2005, 26(7): 673-676.
[15] Taylor, S C, Steinetz B M, Oswald J J. Further Characterization of an Active Clearance Control Concept[C]. Ohio: 43rd AIAA Joint Propulsion Conference and Exhibit Cincinnati, 2007.
[16] 《中国航空材料手册》编辑委员会. 中国航空材料手册[M].北京:中国标准出版社, 2002.(编辑:史亚红)　　　　　　　　　　　　　*　收稿日期:2013-10-25；修订日期:2014-02-27。基金项目:国家自然科学基金(51210008, 51175424)；西北工业大学研究生创业种子基金(Z2014046)。作者简介:王少飞(1988—),男,博士生,研究领域为航空发动机涡轮叶片强度分析。Email: sfwang@mail.nwpu.edu.cn