弹射救生系统稳定板装置偏航稳定技术研究
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摘要
本文针对现役人椅系统偏航稳定性较差的现状,以高仿真度的人椅系统三维模型为基础,采用分块结构化网格方法和嵌套网格技术,生成了较高质量的计算网格。同时遵循适当的原则,设计了稳定板的构型方案,选取三个主要参数为变量,借助CFD软件CFD-FASTRAN,采用有限体积法,基于N-S方程、壁面函数、k?ε湍流方程的方法对改装稳定板后的人椅系统进行了大量的静态计算。通过对计算结果的分析,了解了改装各种构型稳定板后人椅系统的气动特性,以及稳定板不同参数变化对人椅系统偏航稳定效果的影响情况,得到了一系列数据。在此基础上,又进行了6DOF动态计算,进一步验证了所设计的稳定板的对人椅系统偏航稳定性的改善效果。计算结果表明,所设计稳定板对偏航稳定性有大幅度的改善作用,并且未对其他气动特性造成破坏性的影响。本文对今后偏航稳定装置型号设计和弹射救生领域气动分析做出了贡献,具有一定的参考和实用价值。
Aim at the state of yaw-instability of seat/occupant system, a high quality grid which based on the structured grid and chimera grid technique was created through a full scale and all significant protuberances keeped geometric model. Some feasible types of stabilization fins for the ejection system have been designed according to some rules aim to the situation of escape system field. Three main parameters which form the type of stabilization fins were defined as the variables.The CFD code used was FASTRAN, which employs Chimera techniques、Reynolds-averaged Navier-Stokes code and standard k-εmodel with wall function. The steady aerodynamic characteristics of the seat/occupant system with variable sizes of stabilization fins were investigated and the results were demonstrated and validated by 6DOF analysis. The results show that the yaw-stability of seat/occupant system with stabilization fins has a perceptible improvement and the fins have no negative effect on other aerodynamic characteristics. Such method could be developed as an aid to the preliminary design and configuration optimization analysis of the ejection seat.
Aim at the state of yaw-instability of seat/occupant system, a high quality grid which based on the structured grid and chimera grid technique was created through a full scale and all significant protuberances keeped geometric model. Some feasible types of stabilization fins for the ejection system have been designed according to some rules aim to the situation of escape system field. Three main parameters which form the type of stabilization fins were defined as the variables.The CFD code used was FASTRAN, which employs Chimera techniques、Reynolds-averaged Navier-Stokes code and standard k-εmodel with wall function. The steady aerodynamic characteristics of the seat/occupant system with variable sizes of stabilization fins were investigated and the results were demonstrated and validated by 6DOF analysis. The results show that the yaw-stability of seat/occupant system with stabilization fins has a perceptible improvement and the fins have no negative effect on other aerodynamic characteristics. Such method could be developed as an aid to the preliminary design and configuration optimization analysis of the ejection seat.
引文
[1]国外第四代弹射救生技术情报研究,中国航空救生研究所,2001
[2] John D.Anderson,JR,《计算流体力学入门》,清华大学出版社,1999
[3]沈尔康,《航空弹射救生装备》,航空工业出版社,1988
[4] CFD-FASTRAN User’s Manual,ESI CFD, Inc.,2004
[5] CFD-FASTRAN Theory Manual,ESI CFD, Inc.,2004
[6]李辉等.不同稳定装置对高速弹射救生系统稳定性的影响分析.航宇救生装备有限公司第一届学术交流会论文集,2004年10月
[7]谭率,基于嵌套网格的人椅系统高速流场特性的数值模拟,南京航空航天大学硕士学位论文,2007.3
[8]邱义芬等,军用飞机弹射座椅惯量计算,工程图学学报,2003年第2期
[9]《弹射座椅型乘员应急离机救生系统通用规范》,GJB1800-1993
[10]朱自强等,《应用计算流体力学》,北京航空航天大学出版社,1998
[11]吴铭,火箭弹射座椅及飞行员实测重心计算报告,航宇救生装备有限公司内部资料,2000.04
[12]吴铭,火箭弹射座椅及飞行员组合重心计算报告,航宇救生装备有限公司内部资料,2000.04
[13]吴铭,火箭弹射座椅及飞行员组合重心数据回归分析报告,航宇救生装备有限公司内部资料,2000.05
[14]张汉镔,《飞行器安全救生》,北京航空航天大学出版社,1990
[15]徐世坤,弹射救生装备的现状和发展,航空科学技术,1990
[16]柳松杨,弹射救生防护的进展,航空军医,2002年2月第1期
[17]胡国才等,弹射座椅救生性能研究,飞行力学,2002.12
[18]吴铭等,弹射座椅与飞行员组合重心分布的研究,航空学报,2004.9
[19]徐世坤,弹射座椅中的稳定技术,航空科学技术,1995.7
[20]张云然,高速气流吹袭问题,航空学报,1994.7
[21]一航航宇公司信息管理部,《国外弹射救生装置手册》,航宇救生装备有限公司内部资料,2006.10
[22]中国人民解放军总装备部/军事训练教材编辑工作委员会,《计算流体力学及应用》,国防工业出版社,2003.01
[23]陈震,歼八弹射座椅射伞新方案试验报告,内部资料,1977.08
[24]陈德华,TY5弹射座椅大迎角大侧滑角高速测力试验研究,内部资料,1996.02
[25]张震林,外挂物投放技术的数值方法研究,西北工业大学硕士学位论文,2004.3
[26]张中刚,人椅系统流场特性的数值研究,南京航空航天大学硕士学位论文,2006.3
[27] Thomas J.Marquette - Aerospace Engineer , Simulated Performance Evaluation of NACES Stabilization Concepts,Proceedings of the 33rd Annual SAFE Symposium, October 1995.
[28] Rock,S.G. and Habchi,S.D.,Computational Investigation of Wind Tunnel Support Interference for An Ejection Seat Test,AIAA-99-3184,1999
[29] Traynor, William L ,S4S ejection seat - a progress report,Proceedings - Annual SAFE Symposium,1983, p 126-129
[30] Ayoub, Peter; Marquette, Thomas J.,Computational Fluid Dynamics as a Tool for Aerodynamic Analysis of Ejection seats , Proceedings - Annual SAFE Symposium,1991, p 125-129
[31] Marquette, Thomas J.,Simulated Performance Evaluation of NACES Stabilization Concepts ,Proceedings - Annual SAFE Symposium,1995, p 83-90
[32] Habchi, S.D., Ho, S.Y., Hufford, G.S., Marquette,T., and Ayoub. P.,Computational AerodynamicAnalysis of the Navy Aircrew Common EjectionSeat,AIAA-94-0395, January 1994.
[33] Rock, S.G., and Habchi, S.D.,Validation of an Automated Chimera Methodology for Aircraft Escape Systems Analysis,AIAA- 98-0767, January, 1998.
[34] Mouch, T.N. and Nelson, R.C.,The Influence of Aerodynamic Interference on High Angle of Attack Wind Tunnel Testing,AIAA-78-827, 1978.
[35] Habchi, S.D., Rock, S.G., Hufford, G.S., Parthasarthy,V.J., and Przekwas, A.J.,Computational Fluid Dynamics Tools for Escape Systems Aerodynamic Analysis, Final Report, CFDRC Report #4128/17, December 1996.
[36] Habchi, S.D., Przekwas, A.J., Marquette, T. and Ayoub, P.,CFD Analysis of Ejection Seat Escape Systems,SAE 921924; Aerotech‘92, Anaheim, CA, 1992.
[37] Habchi, S.D., Hufford, G.S., and Marquette, T.,Navier-Stokes Computational Analysis of the B-1A Escape Capsule,AIAA-95-0187, January 1995.
[2] John D.Anderson,JR,《计算流体力学入门》,清华大学出版社,1999
[3]沈尔康,《航空弹射救生装备》,航空工业出版社,1988
[4] CFD-FASTRAN User’s Manual,ESI CFD, Inc.,2004
[5] CFD-FASTRAN Theory Manual,ESI CFD, Inc.,2004
[6]李辉等.不同稳定装置对高速弹射救生系统稳定性的影响分析.航宇救生装备有限公司第一届学术交流会论文集,2004年10月
[7]谭率,基于嵌套网格的人椅系统高速流场特性的数值模拟,南京航空航天大学硕士学位论文,2007.3
[8]邱义芬等,军用飞机弹射座椅惯量计算,工程图学学报,2003年第2期
[9]《弹射座椅型乘员应急离机救生系统通用规范》,GJB1800-1993
[10]朱自强等,《应用计算流体力学》,北京航空航天大学出版社,1998
[11]吴铭,火箭弹射座椅及飞行员实测重心计算报告,航宇救生装备有限公司内部资料,2000.04
[12]吴铭,火箭弹射座椅及飞行员组合重心计算报告,航宇救生装备有限公司内部资料,2000.04
[13]吴铭,火箭弹射座椅及飞行员组合重心数据回归分析报告,航宇救生装备有限公司内部资料,2000.05
[14]张汉镔,《飞行器安全救生》,北京航空航天大学出版社,1990
[15]徐世坤,弹射救生装备的现状和发展,航空科学技术,1990
[16]柳松杨,弹射救生防护的进展,航空军医,2002年2月第1期
[17]胡国才等,弹射座椅救生性能研究,飞行力学,2002.12
[18]吴铭等,弹射座椅与飞行员组合重心分布的研究,航空学报,2004.9
[19]徐世坤,弹射座椅中的稳定技术,航空科学技术,1995.7
[20]张云然,高速气流吹袭问题,航空学报,1994.7
[21]一航航宇公司信息管理部,《国外弹射救生装置手册》,航宇救生装备有限公司内部资料,2006.10
[22]中国人民解放军总装备部/军事训练教材编辑工作委员会,《计算流体力学及应用》,国防工业出版社,2003.01
[23]陈震,歼八弹射座椅射伞新方案试验报告,内部资料,1977.08
[24]陈德华,TY5弹射座椅大迎角大侧滑角高速测力试验研究,内部资料,1996.02
[25]张震林,外挂物投放技术的数值方法研究,西北工业大学硕士学位论文,2004.3
[26]张中刚,人椅系统流场特性的数值研究,南京航空航天大学硕士学位论文,2006.3
[27] Thomas J.Marquette - Aerospace Engineer , Simulated Performance Evaluation of NACES Stabilization Concepts,Proceedings of the 33rd Annual SAFE Symposium, October 1995.
[28] Rock,S.G. and Habchi,S.D.,Computational Investigation of Wind Tunnel Support Interference for An Ejection Seat Test,AIAA-99-3184,1999
[29] Traynor, William L ,S4S ejection seat - a progress report,Proceedings - Annual SAFE Symposium,1983, p 126-129
[30] Ayoub, Peter; Marquette, Thomas J.,Computational Fluid Dynamics as a Tool for Aerodynamic Analysis of Ejection seats , Proceedings - Annual SAFE Symposium,1991, p 125-129
[31] Marquette, Thomas J.,Simulated Performance Evaluation of NACES Stabilization Concepts ,Proceedings - Annual SAFE Symposium,1995, p 83-90
[32] Habchi, S.D., Ho, S.Y., Hufford, G.S., Marquette,T., and Ayoub. P.,Computational AerodynamicAnalysis of the Navy Aircrew Common EjectionSeat,AIAA-94-0395, January 1994.
[33] Rock, S.G., and Habchi, S.D.,Validation of an Automated Chimera Methodology for Aircraft Escape Systems Analysis,AIAA- 98-0767, January, 1998.
[34] Mouch, T.N. and Nelson, R.C.,The Influence of Aerodynamic Interference on High Angle of Attack Wind Tunnel Testing,AIAA-78-827, 1978.
[35] Habchi, S.D., Rock, S.G., Hufford, G.S., Parthasarthy,V.J., and Przekwas, A.J.,Computational Fluid Dynamics Tools for Escape Systems Aerodynamic Analysis, Final Report, CFDRC Report #4128/17, December 1996.
[36] Habchi, S.D., Przekwas, A.J., Marquette, T. and Ayoub, P.,CFD Analysis of Ejection Seat Escape Systems,SAE 921924; Aerotech‘92, Anaheim, CA, 1992.
[37] Habchi, S.D., Hufford, G.S., and Marquette, T.,Navier-Stokes Computational Analysis of the B-1A Escape Capsule,AIAA-95-0187, January 1995.