A design approach of H∞ Loop Shaping combined with quantitative feedback theory(QFT) is presented for a multi-input/multi-output(MIMO) plant,and is applied to the design of a full envelope(airspeed from 0 kn to over 100 kn) helicopter flight control system.
Positive feedback theory could make the algorithm find its optimal solution faster, distributed computing and manual heuristic information could even help to find a better solution in initial stages and avoid premature convergence.
Simulations have conducted within MATLAB. The results of simulations and experiments show that decentralized controllers designed from optimal state feedback theory at the speed of 60 000rpm meet the requirement of the active magnetic bearing system.
The outer-loop controller of the proposed control algorithm is ap- plied to get desired load pressure for all cylinders designed by quantitative feedback theory and actuators redundancy theory of linear multi-input multi-output system.
According to the electron density figures of valence orbital, we gave an explanation of the variation of vibration frequencies, much different from that traditional which is mainly 3d-2* feedback theory.
After that, the basic concept of real-time task scheduling and the typical scheduling theory and methods of periodic task, including real-time scheduling theory like RM and EDF, non-periodic scheduling theory, feedback theory, are presented.
This theory of block-similarity provides a general framework, which includes the state feedback theory for systems, the theory of Kronecker equivalence and a similarity theory for non-everywhere defined operators.
The controller is then designed using the quantitative feedback theory that is a frequency domain technique to achieve robust control performances.
The data are consistent with the view that mimetic responses enhanced subjective reactions, and they are compatible with the Leventhal and Tomkins versions of facial feedback theory.
Despite strong facial control effects on facial EMG activity, no main effect of facial condition on self-reported amusement was found, and therefore, the data provide no support for a general version of facial feedback theory.
A generalized approach to analyze the stabilization problem based on feedback theory is given.
The inner feedback theory is used to investigate the transverse vibration of rotating shafts, whose motion patterns and system characteristics are greatly different from those of non-rotating ones. The natural frequencies and stiffness characteri-stics of rotating shafts are discussed and calculated and an experimenting technique for measuring the natural frequencies by cutting force excitation is suggested.
In order to correct the analysis of operational amplifier system, thig paper presents the criteria, based on general feedback theory, of the operating region ( linear or saturated ) of the operational amplifier. It discusses applications of these criteria for some typical operational amplifier circuits, constructed with a variety of feePback networks with different elements.
This paper shows how to analyse sinusoidal resonant circuits by means of feedback theory any description-function method. Sinusoidal resonantor with load having frequency-select characteristics can filter off all the large divergnce of D. C. and highfrequency harmonic waves caused by unsymmetric nonlinear characteristics, so that applying harmonic linearization has great adavantages.