A Method for Studying the Hunting Oscillations of an Airplane with a Simple Type of Automatic Control
Abstract
A method is presented for predicting the amplitude and frequency, under certain simplifying conditions, of the hunting oscillations of an automatically controlled aircraft with lag in the control system or in the response of the aircraft to the controls. If the steering device is activated by a simple right-left type of signal, the series of alternating, fixed-amplitude signal occurring during the hunting may ordinarily be represented by a "square wave." Formulas are given expressing the response to such a variation of signal in terms of the response to a unit signal. A more complex type of hunting, which may involve cyclic repetition of signals of varying duration, has not been treated and requires further analysis. General examples of application of the method are included and the results discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 05, 1944
- Accession Number
- ADA298244
Entities
People
- Robert T. Jones
Organizations
- National Advisory Committee for Aeronautics