Communications Project

Document Type:Master's Thesis
Name:Daniel Cutuli Lluch
Title:Analysis of the Out-of-Control Falling Leaf Motion using a Rotational Axis Coordinate System
Degree:Master of Science
Department:Aerospace and Ocean Engineering Department
Committee Chair: Dr Fred Lutze
Committee Members:Dr Mark Anderson
Dr Wayne Durham
Keywords:nonlinear flight dynamics, coordinate system, coordinate transformation
Date of defense:October 2, 1998
Availability:Release the entire work immediately worldwide.


The realm of aircraft flight dynamics analysis reaches from local static stability to global dynamic behavior. It includes aircraft performance issues as well as structural concerns. In the particular aspect of dynamic motions of an aircraft and how we understand them, an alternate coordinate system will be introduced that will lend insight and simplification into the understanding of these dynamic motions. The main contribution of this coordinate system is that one can easily visualize how the instantaneous velocity vector relates to the instantaneous rotation vector, the angular rate vector of the aircraft. The out-of-control motion known as the Falling Leaf will be considered under the light of this new coordinate system. This motion is not well understood and can lead to loss of the aircraft and crew. Design guidelines will be presented to predict amplitude and frequency of the Falling Leaf.

List of Attached Files


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