Flight control - state feedback, Other Engineering

Assignment Help:

If all states are measured by appropriate sensors and interfaced to the flight control computer then allthe states may be fed back and there is no restriction on the choice of K. Sometimes however only someof the states are available for feedback. This can be because there are no sensors deployed to measure thestate or for other reasons such as because the only available positions for the sensors are away from thecg (centre of gravity) position and so do not give a true reading or because the sensors have significant dynamics (time constants etc) of their own.

How can we choose K so that eigenvalues (and poles) of the controlled system are suficiently stable, well damped and with appropriate natural frequencies? This is a key problem in flight control!

The representation of feedback is shown in figure (a). As regards the stability ofthe system the C and D matrix and the command input uc take no part and can be neglected. State feedback can accordingly also be thought of as the problem shown in figure (b) with C = I , D = 0 and uc = 0. 

2181_State feedback.png


Related Discussions:- Flight control - state feedback

Finance, Let C(K) denote a European vanilla Call option with strike price K...

Let C(K) denote a European vanilla Call option with strike price K. Assume that all options are identical except for strike price, and strike prices satisfy (K1) What are the no-

Heat transfer, A 2-m long section of a 3-mm in diamter wire is maintained a...

A 2-m long section of a 3-mm in diamter wire is maintained at a constant surface temperature of 370C. The wire is subject to a cross-flow of air at 30C at 6 m/s Determine the rate

Aeroengines - cfd, Essentially, the strategy of CFD is to replace the conti...

Essentially, the strategy of CFD is to replace the continuous problem domain with a discrete domain using a grid domain with a discrete domain using a grid. In a continuous doma

Jfet characteristics with external bias, Explain the drain characteristics ...

Explain the drain characteristics of JFET with external bias

Define Thermal equilibrium, Thermal equilibrium The definition and measurem...

Thermal equilibrium The definition and measurement of temperature must be logically preceded by the concept of thermal equilibrium and the Zeroth law. To determine operationally wh

Thrust reversal - aircraft design, Thrust reversal: Thrust reversal is ...

Thrust reversal: Thrust reversal is a means of reducing the landing run of an aircraft without excessive use of wheel brakes or the use of braking parachutes.  On a propeller d

Mos ic-s, MOS IC-S: Not all IC's are constructed using bipolar componen...

MOS IC-S: Not all IC's are constructed using bipolar components, IC's are often designed to utilize either bipolar transistors or "Field-Effect transistors" (FETS).  The Field

Plane transmission diffraction grating, A diffraction grating is an optical...

A diffraction grating is an optical element that diffracts light into its constituent wavelength (colors). It is an excellent device used in laboratory to study the spectra. Co

Function, what is function independence.on software engineering

what is function independence.on software engineering

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd