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RECONSTRUCTION OF ATTITUDE DYNAMICS OF FREE FALLING UNITS
KTH, School of Electrical Engineering (EES), Space and Plasma Physics.
KTH, School of Electrical Engineering (EES), Space and Plasma Physics.ORCID iD: 0000-0003-2422-5426
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.ORCID iD: 0000-0001-6802-8331
KTH, School of Electrical Engineering (EES), Space and Plasma Physics.ORCID iD: 0000-0001-6802-1842
2015 (English)In: EUROPEAN ROCKET AND BALLOON: PROGRAMMES AND RELATED RESEARCH, 2015, 107-113 p.Conference paper, Published paper (Refereed)
Resource type
Text
Abstract [en]

Attitude reconstruction of a free falling sphere for the experiment Multiple Spheres for Characterization of Atmosphere Temperatures (MUSCAT) is studied in this paper. The attitude dynamics is modeled through Euler's rotational equations of motion. To estimate uncertain parameters in this model such as the matrix of inertia and the lever arm for the dynamic pressure with respect to the center of mass, the dynamics reconstruction can be formulated as an optimization problem. The goal is to minimize the deviation between the measurements and the propagation from the system equations. This approach was tested against a couple of flight data sets which correspond to different periods of time. The result is very reasonable compared to the laboratory test. The estimate can be improved further through allowing drag coefficients variable and taking advantage of measurements from a magnetometer in numerical calculation.

Place, publisher, year, edition, pages
2015. 107-113 p.
Series
ESA Special Publications, ISSN 0379-6566 ; 730
National Category
Computational Mathematics Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-186693ISI: 000373647300012ISBN: 978-92-9221-294-0 (print)OAI: oai:DiVA.org:kth-186693DiVA: diva2:934133
Conference
22nd ESA Symposium on European Rocket and Balloon Programmes and Related Research, JUN 07-12, 2015, Tromso, NORWAY
Note

QC 20160608

Available from: 2016-06-08 Created: 2016-05-13 Last updated: 2016-06-08Bibliographically approved

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