考虑非线性的机载航炮后座力识别技术  

IDENTIFICATION TECHNIQUE CONSIDERING NONLINEARITY OF AIRBORNE GUN RECOIL

作　　者：程卫真[1] 王永刚[2] 孙勇军[1] 张景绘[3] 

机构地区：[1]中国飞行试验研究院飞机所,西安710089 [2]长安大学理学院,西安710064 [3]西安交通大学航天航空学院,西安710049

出　　处：《振动与冲击》2008年第3期67-70,共4页Journal of Vibration and Shock

摘　　要：针对非线性的机载航炮系统,提出"分段线性传递函数法"的方法,并采用该方法进行后座力识别;同时提出"传递能量"的概念,给出其明确的定义,在此基础上对非线性进行了定量的描述,并修正后座力识别结果。结果表明,该方法与使用线性近似方法解决后座力问题在工程上有大的改进。Aiming at analysis of nonlinear airborne gun system, a method of piecewise linear transfer function is provided to identify the aerogun recoil. The concept of transferred energy is introduced and clearly defined, on this basis, a quantitative description of nonlinearity is presented to correct the identification results. The results indicate that compared with the linear approximate identification, the method to solve the recoil problem is greatly improved.

关 键 词：载荷识别 后座力 传递能量 分段线性传递函数法 

分 类 号：V215[航空宇航科学与技术—航空宇航推进理论与工程] O347.1[理学—固体力学]