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考虑结构刚度不确定性的概率颤振分析

DOI: 10.13700/j.bh.1001-5965.2013.0336, PP. 569-574

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Abstract:

针对舵面颤振系统中存在的不确定性问题,考虑参数的随机分布,利用蒙特卡罗模拟(MCS,MonteCarloSimulation)和非浸入式随机多项式(NIPC,Non-IntrusivePolynomialsChaos)两种方法进行概率颤振分析,以对结构稳定性和颤振风险进行评估.选取一个存在非线性因素的典型三维舵面作为研究对象,考虑舵机弯曲刚度和扭转刚度两个不确定性变量均满足高斯分布,基于MCS和NIPC两种方法开展不确定性定量分析工作.MCS方法选取大量的样本进行颤振计算,而随机多项式方法利用配点法建立代理模型,以此获得大量的颤振信息,进而得到舵面系统发生颤振的危险速度区域及给定速度下系统发生颤振的概率,并对两种方法的置信水平、计算精度和计算效率进行了比较分析.结果表明,以不确定性量化为基础的概率颤振分析方法能充分利用不确定参数的概率信息对结构系统的颤振风险做出评定.

References

[1]  Hosder S, Walters R W, Perez R.A non-intrusive polynomial chaos method for uncertainty propagation in CFD simulations[R].AIAA 2006-961, 2006
[2]  杨超.飞行器气动弹性原理[M].北京:北京航空航天大学出 版社, 2011 Yang Chao.Aeroelastic principles of aircraft[M].Beijing:Beihang University Press, 2011(in Chinese)
[3]  Dowell E, Attar P.A study of uncertainties in nonlinear aeroelastic systems[R].FA9550-04-1-0071, 2006
[4]  Hosde S, Walters R W.Non-intrusive polynomial chaos methods for uncertainty quantification in fluid dynamics[R].AIAA 2010-129, 2010
[5]  李毅, 杨智春.基于参数不确定性的机翼颤振风险评定[J].西北工业大学学报, 2010, 28(3):458-463 Li Yi, Yang Zhichun.Exploring wing flutter risk assessment with parametric uncertainty[J].Journal of Northwestern Polytechnical University, 2010, 28(3):458-463(in Chinese)
[6]  Huyse L, Bonivtch A R, Pleming J B, et al.Verification of stochastic solutions using polynomial chaos expansions[R].AIAA 2006-1994, 2006
[7]  Li Y, Yang Z C.Uncertainty quantification in flutter analysis for an airfoil with reloaded free play[J].Journal of Aircraft, 2010, 47(4):1454-1457
[8]  Millwater H, Griffin K, Wieland D.Probability analysis of an advanced fighter/attack aircraft composite wing structure[R].AIAA 99-1567, 1999
[9]  Pettit C L.Uncertainty quantification in aeroelasticity:recent results and research challenges[J].Journal of Aircraft, 2004, 41(5):1217-1229
[10]  Lindsley N J, Beran P S, Pettit C L.Effects of uncertainty on nonlinear plate response in supersonic flow[R].AIAA 2002-5600, 2002
[11]  宋述芳, 吕震宙, 张伟伟, 等.机翼气动弹性的随机不确定性分析研究[J].振动工程学报, 2009, 22(3):227-231 Song Shufang, Lü Zhenzhou, Zhang Weiwei.Random uncertainty of aeroelastic system[J].Journal of Vibration Engineering, 2009, 22(3):227-231(in Chinese)
[12]  戴玉婷, 吴志刚, 杨超.不确定性颤振风险定量分析[J].航空学报, 2010, 31(9):1788-1795 Dai Yuting, Wu Zhigang, Yang Chao.Quantification analysis of uncertain flutter risks[J].Acta Aeronautica et Astronautica Sinica, 2010, 31(9):1788-1795(in Chinese)
[13]  Pettit C L, Beran P S.Polynomial chaos expansion applied to airfoil limit cycle oscillations[R].AIAA 2004-1691, 2004
[14]  徐钟济.蒙特卡罗方法[M].上海:上海科学技术出版社, 1985 Xu Zhongji.Monte Carlo method[M].Shanghai:Shanghai Science and Technic Press, 1985(in Chinese)
[15]  Heeg J.Stochastic characterization of flutter using historical wind tunnel data[R].AIAA 2007-1769, 2007
[16]  胡冉, 李典庆, 周创兵, 等.基于随机响应面法的结构可靠度分析[J].工程力学, 2010, 27(9):192-200 Hu Ran, Li Dianqing, Zhou Chuangbing, et al.Structural reliability analysis using stochastic response surface[J].Engineering Mechanics, 2010, 27(9):192-200 (in Chinese)
[17]  Hosder S, Walters R W, Perez R.A non-intrusive polynomial chaos method for uncertainty propagation in CFD simulations[R].AIAA 2006-961, 2006
[18]  Hosde S, Walters R W.Non-intrusive polynomial chaos methods for uncertainty quantification in fluid dynamics[R].AIAA 2010-129, 2010
[19]  Huyse L, Bonivtch A R, Pleming J B, et al.Verification of stochastic solutions using polynomial chaos expansions[R].AIAA 2006-1994, 2006
[20]  Li Y, Yang Z C.Uncertainty quantification in flutter analysis for an airfoil with reloaded free play[J].Journal of Aircraft, 2010, 47(4):1454-1457
[21]  宋述芳, 吕震宙, 张伟伟, 等.机翼气动弹性的随机不确定性分析研究[J].振动工程学报, 2009, 22(3):227-231 Song Shufang, Lü Zhenzhou, Zhang Weiwei.Random uncertainty of aeroelastic system[J].Journal of Vibration Engineering, 2009, 22(3):227-231(in Chinese)
[22]  戴玉婷, 吴志刚, 杨超.不确定性颤振风险定量分析[J].航空学报, 2010, 31(9):1788-1795 Dai Yuting, Wu Zhigang, Yang Chao.Quantification analysis of uncertain flutter risks[J].Acta Aeronautica et Astronautica Sinica, 2010, 31(9):1788-1795(in Chinese)
[23]  徐钟济.蒙特卡罗方法[M].上海:上海科学技术出版社, 1985 Xu Zhongji.Monte Carlo method[M].Shanghai:Shanghai Science and Technic Press, 1985(in Chinese)
[24]  胡冉, 李典庆, 周创兵, 等.基于随机响应面法的结构可靠度分析[J].工程力学, 2010, 27(9):192-200 Hu Ran, Li Dianqing, Zhou Chuangbing, et al.Structural reliability analysis using stochastic response surface[J].Engineering Mechanics, 2010, 27(9):192-200 (in Chinese)

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