考虑流固耦合作用的一维供应管路喷嘴系统动力学特性

推进技术 ›› 2017, Vol. 38 ›› Issue (5): 1115-1122.

考虑流固耦合作用的一维供应管路喷嘴系统动力学特性

徐云飞,李锋,李龙飞,邓长华,刘上

西安航天动力研究所液体火箭发动机技术重点实验室，陕西西安 710100,西安航天动力研究所液体火箭发动机技术重点实验室，陕西西安 710100,西安航天动力研究所液体火箭发动机技术重点实验室，陕西西安 710100,西安航天动力研究所液体火箭发动机技术重点实验室，陕西西安 710100,西安航天动力研究所液体火箭发动机技术重点实验室，陕西西安 710100

发布日期:2021-08-15
作者简介:徐云飞，男，硕士，工程师，研究领域为喷雾技术与系统动力学仿真技术。
基金资助:
国家自然科学基金(11502186；51506157)。

Dynamic Characteristics of One-Dimensional Feeding Pipe-Injector System Considering Fluid- Structure Interaction

Science and Technology on Liquid Rocket Engine Laboratory，Xi’an Aerospace Propulsion Institute， Xi’an 710100，China,Science and Technology on Liquid Rocket Engine Laboratory，Xi’an Aerospace Propulsion Institute， Xi’an 710100，China,Science and Technology on Liquid Rocket Engine Laboratory，Xi’an Aerospace Propulsion Institute， Xi’an 710100，China,Science and Technology on Liquid Rocket Engine Laboratory，Xi’an Aerospace Propulsion Institute， Xi’an 710100，China and Science and Technology on Liquid Rocket Engine Laboratory，Xi’an Aerospace Propulsion Institute， Xi’an 710100，China

Published:2021-08-15

摘要/Abstract

摘要： 为了更加深入地研究供应管路-喷嘴系统的动态特性，在喷嘴动力学理论的基础上，建立了考虑供应管路流固耦合作用的传递矩阵组合计算模型。针对三种典型液体火箭发动机喷嘴与一维供应管路组成的系统，开展了两端固定边界的系统动力学特性数值模拟。结果表明:管路结构谐振与管内流体谐振所导致的喷嘴出口位置流体速度振荡量级相当，管路流固耦合作用对系统动态特性的影响不能忽略；管路结构谐振是造成其固定位置应力的频率响应幅值较高的主要因素；当流体与结构的谐振频率接近时，会产生一个大带宽、高幅值的应力耦合振荡区间，随着管壁厚度的增大，耦合振荡的带宽也随之增大；对于文中算例，流固耦合作用对流体谐振造成的系统振荡具有约5%的降频作用。

关键词: 流固耦合；供应管路-喷嘴系统；传递矩阵法；动态特性

Abstract: To study the dynamic characteristics of feeding pipe-injector system，a combined transfer matrix model is set up considering fluid-structure interaction in feeding pipe based on dynamic theories of liquid injector. A numerical investigation concerning about the characteristic of systems consisting of one-dimensional feeding pipe and three kinds of conventional injectors in liquid rocket engines with fixed-fixed boundary condition is carried out. Results indicate that the flow velocity oscillation at injector exit caused by structure and fluid has a comparable scale，so the influence of fluid- structure interaction in pipe cannot be ignored. Structure resonance is the main factor which induced a higher stress response at fixed boundary of the pipe. There is a wide-band and high-amplitude frequency interval of coupled oscillation in stress，when the resonant frequencies of structure and fluid are close. As the thickness of pipe increases，the bandwidth of stress oscillation becomes wider. Numerical examples also show that，with fluid-structure interaction effect，oscillation frequencies of flow velocity and structure stress induced by fluid resonance decrease by about 5%.

Key words: Fluid-structure interaction；Feeding pipe-injector；Transfer matrix method；Dynamic characteristics

徐云飞,李锋,李龙飞,邓长华,刘上. 考虑流固耦合作用的一维供应管路喷嘴系统动力学特性[J]. 推进技术, 2017, 38(5): 1115-1122.

XU Yun-fei,LI Feng,LI Long-fei,DENG Chang-hua,LIU Shang. Dynamic Characteristics of One-Dimensional Feeding Pipe-Injector System Considering Fluid- Structure Interaction[J]. Journal of Propulsion Technology, 2017, 38(5): 1115-1122.

参考文献

[1] Bazarov V G. 液体喷嘴动力学[M]. 任汉芬, 孙纪国, 译. 北京:中国宇航出版社, 1997.
[2] 阿列马索夫 B E. 火箭发动机原理[M]. 张宗钦, 庄逢辰, 译. 北京:中国宇航出版社, 1993.
[3] Bazarov V G, Yang V. Liquid-Propellant Rocket Engine Injector Dynamics[J]. Journal of Propulsion and Power, 1998, 14(5): 797-806.
[4] 杨立军, 张向阳, 葛明和. 敞口型离心喷嘴动力学特性理论分析[J]. 推进技术, 2006, 27(6): 497-500. (YANG Li-jun, ZHANG Xiang-yang, GE Ming-he. Theoretical Analysis of Dynamics of Open Swirl Injector[J]. Journal of Propulsion Technology, 2006, 27(6): 497-500.)
[5] 杨立军, 富庆飞. 由喷嘴连接的燃烧室到供应系统压力振荡传递过程研究[J]. 航空动力学报, 2009, 24(5): 1182-1186.
[6] 刘上, 刘红军, 陈宏玉. 液体离心喷嘴动力学特性理论分析[J]. 火箭推进, 2012, 38(3): 1-6.
[7] 休泽尔 D K. 液体火箭发动机现代工程设计[M]. 朱宁昌, 译. 北京:中国宇航出版社, 2003.
[8] Tijsseling A S. Water Hammer with Fluid-Structure Interaction in Thick-Walled Pipes[J]. Computer and Structures, 2007, 85(11-14): 844-851.
[9] 杨超, 范士娟. 输液管道流固耦合振动的数值分析[J]. 振动与冲击, 2009, 28(6): 56-59.
[10] 魏鑫, 孙冰, 于子文, 等. 火箭推进系统充液管路的流固耦合动响应分析[J]. 航空动力学报, 2010, 25(4): 852-856.
[11] Gale J, Tiselj I. Godunov’s Method for Simulations of Fluid-Structure Interaction in Piping Systems[J]. ASME Journal of Pressure Vessel Technology, 2008, 130(3): 1-12.
[12] 杨莹, 陈志英. 航空发动机管路流固耦合固有频率计算与分析[J]. 燃气涡轮试验与研究, 2010, 23(1): 42-46.
[13] 邱明星, 陈志英, 王建军, 等. 充液管路固有频率试验与计算分析[J]. 推进技术, 2013, 34(11): 1537-1542. (QIU Ming-xing, CHEN Zhi-ying, WANG Jian-jun, et al. Experiment and Numerical Analysis of Natural Frequency for Liquid-Filled Pipe[J]. Journal of Propulsion Technology, 2013, 34(11): 1537-1542.)
[14] 焦宗夏, 华清, 于凯. 传输管道流固耦合振动的模态分析[J]. 航空学报, 1999, 20(4): 29-33.
[15] 张智勇, 沈荣瀛, 王强. 充液管道系统的模态分析[J]. 固体力学学报, 2001, 22(2): 143-149.
[16] 徐云飞. 基于流固耦合的火箭发动机导管振动特性研究[D]. 西安:西安航天动力研究所, 2009.
[17] Xu Yuan-zhi, Johnston D N, Jiao Zong-xia, et al. Frequency Modeling and Solution of Fluid-Structure Interaction in Complex Pipelines[J]. Journal of Sound and Vibration, 2014, 333(10): 2800-2822.
[18] 邢理想, 杜大华, 李斌. 液氧/煤油补燃火箭发动机氧路低频动特性分析[J]. 火箭推进, 2009, 35(5): 24-28.
[19] 李斌, 杜大华, 张贵田, 等. 液氧/煤油补燃发动机低频频率特性研究[J]. 航空动力学报, 2009, 24(5): 1187-1191.
[20] LI Bin, DU Da-hua, ZHANG Gui-tian. Frequency Sensitivity Analysis on the LOX/ Kerosene Staged Combustion Cycle Engine [C]. Montreal: 12th International Space Conference of Pasin-Basin Societies, 2010.
[21] 刘上. 刘红军, 陈宏玉. 液体火箭发动机热力组件动力学模型[J]. 宇航学报, 2012, 33(10): 1512-1518.
[22] 刘上, 刘红军, 徐浩海, 等. 流量调节器-管路系统频率特性及稳定性[J]. 推进技术, 2012, 33(4): 631-638. (LIU Shang, LIU Hong-jun, XU Hao-hai, et al. Frequency Characteristics and Stability of the Flow Regulator-Pipe System[J]. Journal of Propulsion Technology, 2012, 33(4): 631-638.)
[23] 刘上, 刘红军, 陈建华, 等. 富氧燃气发生器-供应系统耦合稳定性研究[J]. 推进技术, 2013, 34(11): 1448-1458. (LIU Shang, LIU Hong-jun, CHEN Jian-hua, et al. Investigation on Oxidizer-Rich Preburner Feed System Coupled Stability[J]. Journal of Propulsion Technology, 2013, 34(11): 1448-1458.)
[24] 刘上. 刘红军, 陈宏玉. 富氧燃气发生器动态特性分析[J]. 航空动力学报, 2013, 28(1): 226-232.
[25] DU Da-hua, HE Er-ming, LI Feng. System Frequency Characteristic Analysis for a Large-Thrust LOX/Kerosene Staged Combustion Cycle Engine[C]. Jerusalem: 66th International Astronautical Congress, 2015.　　　　　　　　　　　　*　收稿日期:2016-03-06；修订日期:2016-05-09。基金项目:国家自然科学基金(11502186；51506157)。作者简介:徐云飞,男,硕士,工程师,研究领域为喷雾技术与系统动力学仿真技术。E-mail: xiaorongxy@163.com(编辑:史亚红)