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Undersökning av regulatorer for normalaccelerationen hos ett flygplan

Engel, John (1975) In MSc Theses
Department of Automatic Control
Abstract
This work is dealing with airplane control. <br><br> The work is based on the JACC conference from 1970, where the time domain specifications on the step response of the normal acceleration n^z (perpendicular to the longitudinal direction of the airplane) and its derivative are given, so that all step responses shall entirely lie within the specifications with a probability of at least 85%. <br><br> The system is of non minimum phrase type and for such a system there often must be a compromise between the requirements on short rise time and the amplitude of the negative overshoot. <br>The airplane is represented by a second order linear system, and the system parameters vary with different flight conditions. <br>First a 2-feedback 4th... (More)
This work is dealing with airplane control. <br><br> The work is based on the JACC conference from 1970, where the time domain specifications on the step response of the normal acceleration n^z (perpendicular to the longitudinal direction of the airplane) and its derivative are given, so that all step responses shall entirely lie within the specifications with a probability of at least 85%. <br><br> The system is of non minimum phrase type and for such a system there often must be a compromise between the requirements on short rise time and the amplitude of the negative overshoot. <br>The airplane is represented by a second order linear system, and the system parameters vary with different flight conditions. <br>First a 2-feedback 4th order linear system is investigated and a rule is worked out on how to choose the feedback parameters as the flight conditions vary. <br>Next there are added another 2-feedback loops so that the poles of the system could be placed arbitrarily. The problem is: where shall we place the poles for this non minimum phase type system? <br>Next an 8th order system was simulated and the results were finally discussed and compared. <br>The analogue computer of the institute was used in all simulations. (Less)
Please use this url to cite or link to this publication:
author
Engel, John
supervisor
organization
year
type
H3 - Professional qualifications (4 Years - )
subject
publication/series
MSc Theses
report number
TFRT-5167
ISSN
0346-5500
language
Swedish
id
8850380
date added to LUP
2016-03-29 10:26:29
date last changed
2016-03-29 10:26:29
@misc{8850380,
  abstract     = {This work is dealing with airplane control. <br><br> The work is based on the JACC conference from 1970, where the time domain specifications on the step response of the normal acceleration n^z (perpendicular to the longitudinal direction of the airplane) and its derivative are given, so that all step responses shall entirely lie within the specifications with a probability of at least 85%. <br><br> The system is of non minimum phrase type and for such a system there often must be a compromise between the requirements on short rise time and the amplitude of the negative overshoot. <br>The airplane is represented by a second order linear system, and the system parameters vary with different flight conditions. <br>First a 2-feedback 4th order linear system is investigated and a rule is worked out on how to choose the feedback parameters as the flight conditions vary. <br>Next there are added another 2-feedback loops so that the poles of the system could be placed arbitrarily. The problem is: where shall we place the poles for this non minimum phase type system? <br>Next an 8th order system was simulated and the results were finally discussed and compared. <br>The analogue computer of the institute was used in all simulations.},
  author       = {Engel, John},
  issn         = {0346-5500},
  language     = {swe},
  note         = {Student Paper},
  series       = {MSc Theses},
  title        = {Undersökning av regulatorer for normalaccelerationen hos ett flygplan},
  year         = {1975},
}