Longitudinal aerodynamic modeling and design of state observer for stratosphere verifying airship
LUO Chuan-Yong1, LI Chao2, WANG Hong-Li2
1. 068 Base of China Aerospace Science & Industry Corp, Changsha 410205, China;
2.Department of Auto Control, The Secondary Artillery Engineering College, Xi'an, 710025, China
Abstract On the basis of meeting several hypotheses, a coordinate system with its origin at the center of volume is established, and force analysis of stratosphere airship is carried out. Based on seriatim explaining longitudinal forces and moments, state equation of longitudinal aerodynamic model for stratosphere airship under balance is set up. According to experimental flight data and shape dimension characteristics, controllability and observability are analyzed, and then the observer is designed. This observer solves contradiction between performance and physics of the state feedback of the model. Moreover, it also provides design reference for design of stable flight and automatic control of stratosphere airship.
LUO Chuan-Yong, LI Chao, WANG Hong-Li. Longitudinal aerodynamic modeling and design of state observer for stratosphere verifying airship. Chinese Journal of Engineering Design, 2006, 13(5): 307-311.
