GNC/AOCS for flexible space structures

  • SDTlib: Software for modeling, control and simulation of spacecraft,

  • Consulting specializing in modeling and robust control of flexible space systems.

Flexible elements on satellites, such as solar panels or a robotic arm, are often a major constraint in design and validation as they significantly impact stability and performance while being challenging to model accurately. 

On the other hand, these systems include uncertain parameters whose impact must be taken into account right from the controller synthesis stage, and not just during the validation phase, at the risk of invalidating the nominal setting and causing delays in the project.

Our solutions

SDTlib, developed in collaboration with ESA, provides an expert, ready-to-use answer to flexible satellite modeling. It simplifies the design, control, analysis and simulation of space vehicles and subsystems for a wide range of mission scenarios.

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We offer consulting services (customized R&D studies, collaboration on European projects, response to ESA calls for tenders, CNES R&T, etc.) based on our expertise in robust control and modeling of mechanical, flexible and multi-body systems.

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Our customers

Témoignages clients

Clearspace

Charles Bakouche, senior GNC engineer

ClearSpace, as a lean startup, makes extensive use of any valuable products facilitating research and development. The modeling of spacecraft flexible structures, and the associated robust controller synthesis, is a problem for which SDTLib offers a state-of-the-art solution. This has saved us the time and cost of developing and validating an internal solution from scratch.

Infinite Orbits

Enrique Carlos Toomey, AOCS architect

Flexible modes have a major impact in the pointing budget of our in-orbit servicer Endurance. STDLib help us to model the composite spacecraft, including all types of deployables as well as the docking arm. DyCSyT engineering services help us understand the trade-off between the docking mechanism rigidity and the controllability of the spacecraft, and ultimately derive requirements for the docking system that would guarantee compliance to pointing requirement after docking. We want to use STDLib and DyCSyT services for upcoming CDR of our Endurance flagship project.

DYCSYT develops solutions to improve reliability and shorten the development cycle, from design to validation, of guidance, navigation and control (GNC) / attitude, control and orbit system (AOCS). Do not hesitate to contact us to discuss your needs.

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