TY - GEN
T1 - Design improvements of a solar sail for stiffness increase and passive attitude stabilization
AU - Kreissl, Sebastian
AU - Sakamoto, Hiraku
AU - Park, K. C.
AU - Baier, Horst
PY - 2007
Y1 - 2007
N2 - The present study aims at improving a solar sail quadrant design concerning three objective quantities: mass, fundamental frequency, and wrinkled sail area. For the analysis, a parametric finite-element sail model is constructed, which is described by a set of seven design variables. In addition, the support boom is modeled using an analytical beam theory including a manufacturing imperfection. A design optimization strategy is applied to the sail/boom integrated model, which exhibits the improvement of all three design objectives. Furthermore, this paper explores a slightly conical-shaped sailcraft design that passively stabilizes its attitude dynamics in deep space. Finite-element analyses in this study demonstrate that the attitude dynamics of square sailcraft can be unstable due to the sail billowing caused by solar radiation pressure. It is shown that this attitude instability can be avoided by placing the four quadrants such that the sailcraft has a slightly conical shape. This study identifies the required cone geometry for the passive-attitude stabilization.
AB - The present study aims at improving a solar sail quadrant design concerning three objective quantities: mass, fundamental frequency, and wrinkled sail area. For the analysis, a parametric finite-element sail model is constructed, which is described by a set of seven design variables. In addition, the support boom is modeled using an analytical beam theory including a manufacturing imperfection. A design optimization strategy is applied to the sail/boom integrated model, which exhibits the improvement of all three design objectives. Furthermore, this paper explores a slightly conical-shaped sailcraft design that passively stabilizes its attitude dynamics in deep space. Finite-element analyses in this study demonstrate that the attitude dynamics of square sailcraft can be unstable due to the sail billowing caused by solar radiation pressure. It is shown that this attitude instability can be avoided by placing the four quadrants such that the sailcraft has a slightly conical shape. This study identifies the required cone geometry for the passive-attitude stabilization.
UR - https://www.scopus.com/pages/publications/34547605112
U2 - 10.2514/6.2007-1802
DO - 10.2514/6.2007-1802
M3 - Conference contribution
AN - SCOPUS:34547605112
SN - 1563478927
SN - 9781563478925
T3 - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
SP - 1184
EP - 1204
BT - Collection of Technical Papers - 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
Y2 - 23 April 2007 through 26 April 2007
ER -