A TEST EVALUATION OF A PILOT-INDUCED-OSCILLATION PREDICTION CRITERION

来源 :The Third International Conference on Dynamics,Vibration and | 被引量 : 0次 | 上传用户:hedanjiaotong
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  This paper presents evaluation procedures, concepts, and results from a limited test to evaluate the ability of the Open-Loop Onset Point (OLOP) criterion to predict Pilot-Induced-Oscillations (PIO) in the presence of rate limiting.The OLOP criterion was developed by DLR.This paper examined the ability of OLOP to predict PIO on four longitudinal configurations incorporating flight control systems with various rate limits imposed on the actuator.Two were examined for use with OLOP: the recommended pure gain model, and the Modified Neal-Smith model.Three test pilots performed a handling qualities evaluation on each configuration using a Head-up-Display tracking task PIO ratings were compared with OLOP calculations for correlation.The results show positive correlation between OLOP and pilot ratings.A majority of the ratings that did not correlate were relatively close to the stability boundary.The criterion was found to be useful but with some limitations.This paper presents recommendations on how OLOP might be applied as a design tool.
其他文献
会议
会议
会议
会议
A generalized Lotka-Volterra system can be modeled by {(x)=xρ(x)-yp(x)=(y)(-ψ(y) + γp(x))(1)where x and y represent the density of the prey and the predator, respectively.The growth rate p(x) =1-k1x-k
Many traditional ecological theories have concentrated on long-term or asymptotic behavior that exhibit rich dynamics like stable equilibrium, limit cycle, chaos or more complex phenomenon.While in ap
This talk is devoted to four kinds of fifth-order nonlinear wave equations including the Caudrey-Dodd-Gibbon equation.Kupershmidt equation.Kaup-Kupershmidt equation and Sawada-Kotera equation.The exac
会议
Consider the nonlinear delay differental equation (x)(t)=p(t)[f(x(t-(τ))-g(x(t)),t≥0 where (τ)∈(0,∞),p∈C[(0,∞),(0,∞)] and f,g ∈[(α,∞),(0,∞)]with α≥-∞.
会议
In this talk, a generalization of the usual Green function of Lapalcian operators to a class of nonlinear degenerate operators with X-ellipticiry is considered.Maximum principle and some apriori estim
会议
In designs and applications of dynamic systems, it is not uncommon for their dynamics to switch between two or more configurations.A switching dynamic system is composed of a family of configurations
会议