扩展分支分析方法在飞行动力学中的应用  

Application of the Extended Bifurcation Analysis Methods in Flight Dynamics

作　　者：沈宏良[1] 陈永亮[1] 刘昶[1] 

机构地区：[1]南京航空航天大学空气动力学系

出　　处：《飞行力学》2008年第2期5-8,共4页Flight Dynamics

基　　金：航空基础科学基金资助项目(2007ZA52010)

摘　　要：将分支分析和突变理论方法扩展后,应用于飞机全包线范围内平衡特性的连续计算和稳定性分析,提出了以扩展分支分析方法为基础的反馈参数连续调参的控制律设计方法。研究结果表明,扩展分支分析方法不仅能获得飞行性能指标,而且可确定非线性飞行动力学系统的稳定特性,是综合进行性能计算、品质分析及控制律设计的一种有效方法。The bifurcation analysis and catastrophe theory methodology was extended and applied on the continuation computation of the equilibrium characteristics and the analysis of stability all over the flight envelope of aircraft. Based on the extended bifurcation analysis methods, a design method of control law with continuation schedule of the control feedback gains was presented. The result shows that the extended bifurcation analysis methods can not only give the performance measures of aircraft, but also determine the stability of nonlinear flight dynamics, so they are the effective methods in which aircraft performance computation, stability analysis and control law design are undertaken integratedly.

关 键 词：分支分析和突变理论方法 飞行性能 飞行品质 增益调参 

分 类 号：V212.1[航空宇航科学与技术—航空宇航推进理论与工程]