轴对称矢量喷管A8面运动学分析与求解

刘铭达; 赵志刚; 石广田; 孟佳东

doi:10.13433/j.cnki.1003-8728.2016.0627

轴对称矢量喷管A8面运动学分析与求解

doi: 10.13433/j.cnki.1003-8728.2016.0627

1.
兰州交通大学机电工程学院, 兰州 730070

详细信息

作者简介:
刘铭达(1989-),硕士研究生,研究方向为轴对称矢量喷管的设计与研究,lmd89@foxmail.com

通讯作者:
赵志刚(联系人),副教授,博士,hoverandflap@qq.com

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- 文章访问数: 144
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- 被引次数: 0
出版历程
- 收稿日期: 2014-09-03
- 刊出日期: 2016-06-05

Analysis and Solving for Kinematics of A8 Area of Axial-Symmetric Vectoring Exhaust Nozzle

1.
School of Mechatronic Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China

摘要

摘要: 对轴对称矢量喷管A8面的运动学研究是为了准确调整其大小,从而满足最佳膨胀比系数的要求。首先采用合理的简化方法,用收敛片及其密封片末端形成的内切圆来近似表示不规则的A8面,并且计算了误差,说明其可行性。然后根据设定条件:收敛片的圆弧形凸面通过收敛片两端,建立了A8面运动机构的数学模型。用解析式表示相关部件参数间的关系,不仅避免了计算复杂而又耗时的迭代过程,还使求解思路更加清晰。最终得出了A8做动筒的推进量与收敛片的内切圆面积的函数关系,即A8面收扩的函数表达式。接着进行仿真验证,结果表明所求函数与三维模型中测量的数据吻合,综合A8面函数表达式的准确率达到约96%。
- 轴对称矢量喷管 /
- A8面 /
- 做动筒 /
- 运动学 /
- 密封片 /
- 喷管 /
- 模型 /
- 函数 /
- 误差 /
- 矢量
Abstract: The kinematic relationship of A8 area of AVEN(Axial-symmetric Vectoring Exhaust Nozzle) is studied for the accurate adjustment and control of its motion and to meet the requirements of the best coefficient of expansion ratio. The irregular A8 area is formed with the back-end of the convergence pieces and the seals, and it is mathematically represented by an inscribed circle. It is indicated that the method of approximate representation is feasible based on error analysis. A kinematics model of the A8 area is built according to the given conditions, namely the cambered surface of the convergence piece comeing across its both ends. With the relatively simple analytical functions for the related variables,the complicated iteration is omitted, which simplifies the solving process. Finally, the relationship between the A8 area and the advance amount of the A8 actuators is obtianed. Simulation results indicate that the function is in accordance with the measured data and the accuracy of the result is about 96%.
- A8 area /
- actuators /
- AVEN /
- error /
- functions /
- kinematics /
- models /
- nozzles /
- seals /
- vector

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参考文献(10)

[1]	范文正,李明.推力矢量喷管现状和发展趋势[J].航空科学技术,2006,(1):21-22 Fan W Z, Li M. Status and trends of the thrust-vectoring nozzle[J]. Aeronautical Science and Technology, 2006,(1):21-22(in Chinese)
[2]	王玉新.喷气发动机轴对称推力矢量喷管[M].北京:国防工业出版社,2006:1-19 Wang Y X. Axian-symmetric vectoring exhaust nozzle for jet-thrust-aircraft[M]. Beijing:National Defence Industry Press, 2006:1-19(in Chinese)
[3]	王玉新,王仪明,李雨桐.轴对称推力矢量喷管载荷变形的控制补偿[J].航空动力学报,2007,22(10):1685-1689 Wang Y X, Wang Y M, Li Y T. Load deformation compensation of the axisymmetric vectoring exhaust nozzle[J]. Journal of Aerospace Power, 2007,22(10):1685-1689(in Chinese)
[4]	李晓明,伏宇.轴对称矢量喷管机构优化设计[J].燃气涡轮试验与研究,2006,19(3):1-5 Li X M, Fu Y. Optimum design of AVEN mechanism[J]. Gas Turbine Experiment and Research, 2006,19(3):1-5(in Chinese)
[5]	杨军刚,张卫红.轴对称推力矢量喷管调节环结构优化设计研究[J].机械制造,2012,50(4):16-19 Yang J G, Zhang W H. The research of optimization design for axisymmetric thrust vectoring nozzle adjustment ring structure[J]. Machine Manufacturing, 2012,50(4):16-19(in Chinese)
[6]	王立峰,张津,唐海龙.推力矢量控制飞行的仿真研究[J].航空动力学报,2000,15(4):427-430 Wang L F, Zhang J, Tang H L. Simulation of vector thrust control flight[J]. Journal of Aerospace Power, 2000,15(4):427-430(in Chinese)
[7]	蒲雪萍.轴对称矢量喷管控制系统半物理仿真试验[J].燃气涡轮试验与研究,2003,16(2):18-21 Pu X P. A semi-physical simulation of axisymmetric vectoring nozzle[J]. Gas Turbine Experiment and Research, 2003,16(2):18-21(in Chinese)
[8]	Wood J M, Hauer T A, Lippmeier W C. Axisymmetric vectoring exhaust nozzle thermal shield:US, 5485959[P]. 1996-01-23
[9]	Hauer T A, Lippmeier W C. Convertible ejector selectively cooled thrust vectoring exhaust nozzle:US, 5680755[P]. 1997-10-28
[10]	Thayer E B. Gas turbine vectoring exhaust nozzle:US, 5335489[P]. 1994-08-09