TY - GEN
T1 - Automatic Design and Optimization of a Satellite Structure Using Parametric CAD Modeling
AU - Zhang, Yunzhe
AU - Frank, Jintin
AU - Zimmermann, Markus
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2023
Y1 - 2023
N2 - A satellite payload structure is to be designed to meet mechanical requirements, e.g., on its dynamic behavior. The design variables are the positions and thicknesses of stiffening ribs and panels. Due to the large number of design variables, experience-based design may lead to a suboptimal result. Therefore, parametric optimization is adopted. Automatic variation of the position of structural elements is not straightforward, as geometrical interfaces between them must be adapted. For fast assessment of many variants, an automatic design procedure is proposed that includes (1) a parametric CAD model that automatically updates the interfaces between structural elements, (2) a finite element-based assessment of the quantities of interests, and (3) a systematic analysis of the relation between design variables and quantities of interest based on design of experiments. The finite element model adopts tetrahedral solid elements. Solids are numerically more expensive than shell elements, and tetrahedral elements are known to be of low accuracy. However, automatic meshing is now possible to enable a full-scale DoE analysis on a level of sufficient geometric detail. To demonstrate the effectiveness of the approach, the primary and support structure of the so-called Wide Field Imager of the ATHENA space program is analyzed and design improvements are presented.
AB - A satellite payload structure is to be designed to meet mechanical requirements, e.g., on its dynamic behavior. The design variables are the positions and thicknesses of stiffening ribs and panels. Due to the large number of design variables, experience-based design may lead to a suboptimal result. Therefore, parametric optimization is adopted. Automatic variation of the position of structural elements is not straightforward, as geometrical interfaces between them must be adapted. For fast assessment of many variants, an automatic design procedure is proposed that includes (1) a parametric CAD model that automatically updates the interfaces between structural elements, (2) a finite element-based assessment of the quantities of interests, and (3) a systematic analysis of the relation between design variables and quantities of interest based on design of experiments. The finite element model adopts tetrahedral solid elements. Solids are numerically more expensive than shell elements, and tetrahedral elements are known to be of low accuracy. However, automatic meshing is now possible to enable a full-scale DoE analysis on a level of sufficient geometric detail. To demonstrate the effectiveness of the approach, the primary and support structure of the so-called Wide Field Imager of the ATHENA space program is analyzed and design improvements are presented.
KW - Design assessment
KW - Design of experiments
KW - Finite element method
KW - Parametric CAD
KW - Satellite structure optimization
UR - http://www.scopus.com/inward/record.url?scp=85174742928&partnerID=8YFLogxK
U2 - 10.1007/978-981-99-0264-4_69
DO - 10.1007/978-981-99-0264-4_69
M3 - Conference contribution
AN - SCOPUS:85174742928
SN - 9789819902637
T3 - Smart Innovation, Systems and Technologies
SP - 841
EP - 852
BT - Design in the Era of Industry 4.0, Volume 2 - Proceedings of ICoRD 2023
A2 - Chakrabarti, Amaresh
A2 - Singh, Vishal
PB - Springer Science and Business Media Deutschland GmbH
T2 - 9th International Conference on Research into Design, ICoRD 2023
Y2 - 9 January 2023 through 11 January 2023
ER -