22, December 2017

ESA Open Invitation to Tender AO9187
Open Date: 20/12/2017
Closing Date: 09/02/2018 13:00:00

Status: ISSUED
Reference Nr.: 17.133.16
Prog. Ref.: GSTP Element 1 Dev
Budget Ref.: E/0904-611 – GSTP Element 1 Dev
Special Prov.: PL
Tender Type: C
Price Range: 200-500 KEURO
Products: Launchers / Mechanisms / Mechanisms – Units / Stage/Payload Separation devices – not explosive (Clamp-bands, springs, …) / Launchers / Mechanisms / Mechanisms – Units / Safety and Destruction Systems / Satellites & Probes / Structures / Space structures with changing geometries / Deployable Structures, Adaptive Trusses, … / Orbital Transportation & Re-entry Systems / Mechanisms / Mechanisms / Deployment
Techology Domains: Mechanisms / Mechanism Engineering / Engineering Tools / Structures / Structural Design and Verification Methods and Tools / Analysis Tools and Methodologies / Structures / Launchers, Reentry Vehicles, Planetary Vehicles / Landing Attenuation Technologies / Automation, Telepresence & Robotics / Automation & Robotics Systems / Manipulation Systems
Establishment: ESTEC
Directorate: Directorate of Tech, Eng. & Quality
Department: Mechanical Engineering Department
Division: Structure and Mechanisms Division
Contract Officer: Strzelecki, Patryk Michal
Industrial Policy Measure: C2 – Activities in open competition, significant partecipat…
Last Update Date: 20/12/2017
Update Reason: Tender issue

In the frame of past research activity focused on reviewing numerical time integration schemes for solving complex deployable spacesystem such as LargeDeployable Reflector and P-band FLATS antenna, two main limitations were clearly identified:The first limitation is on the modelling of discontinuities (such latches, brakes,…).The current representation of these elements is not optimizedwith severe consequences on solution convergence and robustness.The second limitation is on the selection of the proper structural damping mathematical representation. It is essential to identify the most suitable representation among the several model current available in literature.Furthermore, in large solar array deployment the need to independently assess the validity of numerical solution by mean of monitor the energy characteristics of the whole system (kinetic energy, potential energy, total angular momentum, …)is vital.Moreover, there is a clear need to investigate the effects of uncertainties on elastic components of the system withouttheneed of re-condensate the Finite Element Model.Above identified improvements are crucial also for the dynamic simulation and verification activities for long deployable mast and more in general ultra stable deployable structures, which are essential to enable future science and Earth observation missions.Procurement Policy: C(2) = A relevant participation (in terms of quality and quantity)of non-primes (incl. SMEs) is required. For additional information please go to EMITS news “Industrial Policy measures for non-primes, SMEs and RD entities in ESA programmes”.

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