Modeling Approach of a Near-Space Airship Using Newton-Euler and Lagrangian Formulation

Abstract:

This paper presents dynamics modeling approach of the near-space airship. First, reference frames and motion variables of the airship are defined, and dynamics model of an airship is derived from the Newton-Euler formulation. Second, the Lagrangian modeling approach in terms of quasi-coordinates is presented, and dynamics model is derived form the Lagrangian formulation, considering the airship and its ambient air as a “rigid body-fluid” system from an energy point of view. The added inertial, gravity, aerostatics, and dissipative forces are incorporated into the dynamics model, and are expressed as parameterized matrices in a common framework. Third, the validity of the proposed dynamics model is verified by comparing simulations with the dynamics model derived from Newton-Euler formulation.

• Periodical: Applied Mechanics and Materials (Volume 232)
• Pages: 553-560
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.232.553
• Online since: November 2012
• Authors: Yue Neng Yang, Jie Wu, Wei Zheng
• Keywords: Airship, Dynamics Modeling, Lagrangian Formulation, Near Space

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