引射器活门调节机构的流固热耦合特性

doi:10.12068/j.issn.1005-3026.2021.01.012

东北大学学报（自然科学版） ›› 2021, Vol. 42 ›› Issue (1): 75-82.DOI: 10.12068/j.issn.1005-3026.2021.01.012

引射器活门调节机构的流固热耦合特性

罗忠^{1, 2}，孙永航¹，葛长闯³，许春阳³

(1.东北大学机械工程与自动化学院，辽宁沈阳110819； 2.东北大学航空动力装备振动及控制教育部重点实验室，辽宁沈阳110819； 3.中国航发沈阳发动机研究所，辽宁沈阳110015)

出版日期:2021-01-15 发布日期:2021-01-13
通讯作者: 罗忠
作者简介:罗忠(1978-)，男，内蒙古集宁人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(11872148); 中央高校基本科研业务费专项资金资助项目(N2003012，N2003013，N180703018，N170308028).

Fluid-Solid-Thermal Coupling Characteristics of Ejector Valve Adjusting Structure

LUO Zhong^1,2， SUN Yong-hang¹， GE Chang-chuang³， XU Chun-yang³

1. School of Mechanical Engineering ＆ Automation， Northeastern University， Shenyang 110819， China; 2. Key Laboratory of Vibration and Control of Aero-Propulsion System， Ministry of Education， Northeastern University， Shenyang 110819， China; 3. AECC Shenyang Engine Research Institute， Shenyang 110015， China.

Online:2021-01-15 Published:2021-01-13
Contact: LUO Zhong
About author:-
Supported by:
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摘要/Abstract

摘要： 针对船用燃气轮机引射器活门调节机构多场耦合下的结构强度问题，建立了引射器三维流场以及活门阀片的结构模型，采用计算流体动力学(computational fluid dynamics，CFD)方法，分别对流场进行了稳态与瞬态仿真分析.将瞬态仿真的结果作为有限元模型的边界条件，进行了包含热、气动和离心载荷的顺序单向流固热耦合分析.结果表明，相较于稳态仿真，瞬态仿真结果的趋势相近但压差更大.时变载荷的稳态求解，可能导致强度的估计不足.对活门调节机构而言，热载荷对机构阀片的变形、应力起到主要作用，气动载荷所导致的弯曲应力可以抵消一部分热载荷导致的弯曲应力，而离心载荷对机构的影响较小，可以忽略.所采用的分析方法可用于引射器活门调节机构等典型运动调节机构的结构设计与优化.

关键词: 运动调节机构；多场耦合；时变载荷；计算流体动力学；动力学特性

Abstract: Aiming at the structural strength of the valve adjusting structure of the marine gas turbine ejector under fluid-solid-thermal coupling， the three-dimensional flow field of the ejector and the structural model of the valve plate were established. The steady-state and transient simulation analysis of the flow field were carried out by using the computational fluid dynamics (CFD) method. Taking the transient simulation results as the boundary conditions of the finite element model， the sequential unidirectional fluid-solid-thermal coupling analysis including thermal， aerodynamic and centrifugal loads was carried out. The result showed that compared with the steady-state simulation， the trend of transient simulation results is similar， but the pressure difference is larger. The steady-state solution of the time-varying load may lead to underestimation of strength. For the valve adjusting structure， the thermal load plays a major role in the deformation and stress of the valve plate. The bending stress caused by the aerodynamic load can offset part of the bending stress caused by the thermal load， while the centrifugal load has little effect on the structure， which can be ignored. The analysis method can be used for the structural design and optimization of such typical motion adjusting structures as ejector valve adjusting structure.

Key words: motion adjusting structure; multi-field coupling; time-varying load; computational fluid dynamics (CFD); dynamic characteristics

中图分类号:

V342

罗忠，孙永航，葛长闯，许春阳. 引射器活门调节机构的流固热耦合特性[J]. 东北大学学报（自然科学版）, 2021, 42(1): 75-82.

LUO Zhong， SUN Yong-hang， GE Chang-chuang， XU Chun-yang. Fluid-Solid-Thermal Coupling Characteristics of Ejector Valve Adjusting Structure[J]. Journal of Northeastern University(Natural Science), 2021, 42(1): 75-82.

参考文献

[1]Wirkowski P.Influence of changes of axial compressor variable stator vanes setting on gas turbine engine work［J］.Journal of Polish CIMAC，2007，2(2):511-517.
[2]Kim S，Son C，Kim K.Combining effect of optimized axial compressor variable guide vanes and bleed air on the thermodynamic performance of aircraft engine system［J］.Energy，2017，119(1):199-210.
[3]Kong F，Jin Y，Kim H D.Thrust vector control of supersonic nozzle flow using a moving plate［J］.Journal of Mechanical Science and Technology，2016，30(3):1209-1216.
[4]Wang H H，Ji H，Lu H H.The influence of nozzle deflection on fluid dynamic and infrared characteristics of a two-dimensional convergent-divergent vectoring exhaust system［J］.Proceedings of the Institution of Mechanical Engineers.Part G: Journal of Aerospace Engineering，2019，233(12):4646-4662.
[5]Wang Z，Shen X，Hu J，et al.Numerical prediction of the influence of thrust reverser on aeroengine’s aerodynamic stability［J］.International Journal of Turbo & Jet Engines，2017，34(4):353-364.
[6]Mahmood T，Jackson A，Sethi V，et al.Computational fluid dynamics investigation of a core-mounted target-type thrust reverser.Part 2:reverser deployed configuration［J］.Journal of Engineering for Gas Turbines and Power，2018，140(9):1-12.
[7]Bringhenti C，Barbosa J R.Methodology for gas turbine performance improvement using variable-geometry compressors and turbines［J］.Proceedings of the Institution of Mechanical Engineers.Part A: Journal of Power and Energy，2004，218(7):541-549.
[8]Maqsood A，Birk A M.Experimental and CFD study of exhaust ejectors with bent mixing tubes［C］//American Society of Mechanical Engineers Digital Collection.Reno-Tahoe，2005: 155-165.
[9]Maqsood A，Birk A M.Effect of a bend on the performance of an oblong ejector［C］//ASME Turbo Expo 2007:Power for Land，Sea & Air.Montreal，2007:37-45.
[10]Maqsood A，Birk A M.Improving the performance of a bent ejector with inlet swirl［J］.Journal of Engineering for Gas Turbines and Power，2008，130(6):1-9.
[11]袁惠群，张连祥，朱向哲，等.某航空发动机高压转子系统热振动特性研究［J］.振动与冲击，2008，27(sup):23-25.(Yuan Hui--qun，Zhang Lian-xiang，Zhu Xiang-zhe，et al.Study on thermal bending response of high pressure rotor system［J］.Journal of Vibration and Shock，2008，27(sup):23-25.)
[12]杨文军，袁惠群，赵天宇.基于Kriging模型的数据拟合及多场耦合动力学特性分析［J］.东北大学学报(自然科学版)，2016，37(6):834-838.(Yang Wen-jun，Yuan Hui-qun，Zhao Tian-yu.Multi-field coupling dynamic characteristics and data fitting based on Kriging model［J］.Journal of Northeastern University (Natural Science)，2016，37(6):834-838.)
[13]Yang W J，Yuan H Q，Zhao T Y.Multi-field coupling dynamic characteristics based on Kriging interpolation method［J］.Proceedings of the Institution of Mechanical Engineers.Part G: Journal of Aerospace Engineering，2017，231(6):1-12.
[14]周源远，范小军，李亮，等.燃气轮机叶片前缘旋流冷却的热流固耦合数值研究［J］.西安交通大学学报，2020，54(1):135-142.(Zhou Yuan-yuan，Fan Xiao-jun，Li Liang，et al.Numerical research on the swirl cooling using thermal-fluid-structure coupled method for turbine blade leading edge［J］.Journal of Xi’an Jiaotong University，2020，54(1):135-142.)
[15]Butterfield J，Yao H，Price M，et al.Enhancement of thrust reverser cascade performance using aerodynamic and structural integration［J］.The Aeronautical Journal， 2004，108(1090):621-628.
[16]王彦，武利国，武建新，等.轴对称矢量喷管的流热耦合分析［J］.机械工程与自动化，2013(5):15-16.(Wang Yan，Wu Li-guo，Wu Jian-xin，et al.Analysis of couplied flow and temperature field on axisymmetric vectoring exhaust nozzle［J］.Mechanical Engineering and Automation，2013(5):15-16.)
[17]陈其法，朱春艳，王文彬，等.基于流固耦合方法的运载火箭安全阀颤振问题研究［J］.动力学与控制学报，2019，17(6):528-536.(Chen Qi-fa，Zhu Chun-yan，Wang Wen-bin，et al.Flutter analysis of rocket safety pneumatic valve based on fluid-structure interaction［J］.Journal of Dynamics and Control，2019，17(6):528-536.)
[18]李子如，李广辉，何朋朋，等.复合材料螺旋桨非定常流固耦合特性数值分析［J］.华中科技大学学报(自然科学版)，2019，47(9):7-13.(Li Zi-ru，Li Guang-hui，He Peng-peng，et al.Numerical analysis of unsteady fluid-structure interaction of composite marine propellers［J］.Journal of Huazhong University of Science and Technology(Natural Science Edition)，2019，47(9):7-13.)

引射器活门调节机构的流固热耦合特性

Fluid-Solid-Thermal Coupling Characteristics of Ejector Valve Adjusting Structure

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