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

Fire prevention - fire risk assessment, Fire prevention - fire risk assessm...

Fire prevention - fire risk assessment: Fire prevention measures include: Reducing the combustible materials, Reducing the risk of ignition, Reducing

Iron crabon, iron crabon diagram with reactions

iron crabon diagram with reactions

Power engine - aircraft maintenance, Power Engine: Power producing engi...

Power Engine: Power producing engines come in two main forms Turboprop and turboshaft. a. Turboprop Engines. Turboprop engines extract most of the energy from the gas stream

Matrix laboratory solutions, Matrix laboratory solutions with matlab assign...

Matrix laboratory solutions with matlab assignment help MATLAB (matrix laboratory) is an exact processing atmosphere and fourth-generation selection terminology. Designed by Nu

Mode ii interlaminar fracture , The Mode II fracture toughness is measured ...

The Mode II fracture toughness is measured using the ENF  Typically, the specimen length is 120 mm, the width B is 20 mm, the thickness is between 3 and 5 mm and the distance be

Matrices for risk analysis, Matrices for risk analysis: NFPA 551 descr...

Matrices for risk analysis: NFPA 551 describes a technique of using matrices for risk analysis.  Such matrices are quite commonly used in the UK for assessing risk but, fortun

Barometric lag, My question is that i am working in a petrochemical plant w...

My question is that i am working in a petrochemical plant where in final stage disc ring reactor the barometric lag is chocked completely the system is under vacuum if i introduce

Protected escape routes - means of escape, Protected escape routes - fire p...

Protected escape routes - fire protection engineering: Protected escape routes: Does the fire resistance fully enclose the protected routes? Do the fire doors

Advantages and disadvantages of hot working and cold working, Q. Describe t...

Q. Describe the advantages and disadvantages of hot working and cold working processes. Explain the extrusion process. Ans. Advantages of hot working process

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