Application of System Identification to Parachute Modeling

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Application of System Identification to Parachute Modeling

Murri, Daniel G. / Morelli, Eugene A. / Pei, Jing / Roithmayr, Carlos M. / Matz, Daniel A. / Barton, Richard L. / Mendenhall, Michael R.

Abstract

Parachute models are used in numerous flight simulation tools to predict a wide range of parachute flight performance characteristics (e.g., parachute inflation loads, parachute stability and dynamics, vehicle touchdown conditions, and, ultimately, the safety and survivability of the system using the parachute). The current state of the art in developing parachute models is to initially estimate the parachute characteristics based on the parachute geometry and historical data and then add increased model fidelity based on data from wind tunnel and/or flight tests. This approach, however, can be deficient in identifying which parachute states (e.g., angle of attack, sideslip, angular rates, flyout angles, descent rate, dynamic pressure, proximity to other parachutes) are responsible for the parachute motion, and the relationship between those states and the forces on the parachute.

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Document information

Title :

Application of System Identification to Parachute Modeling

Contributors:

Murri, Daniel G. (author) / Morelli, Eugene A. (author) / Pei, Jing (author) / Roithmayr, Carlos M. (author) / Matz, Daniel A. (author) / Barton, Richard L. (author) / Mendenhall, Michael R. (author)

Publication date :

2019-10-01

Type of media :

Report

Type of material :

No indication

Language :

English

Keywords :

Systems Analysis And Operations Research