Vibration Services. Centre Spatial de Liège. Advanced Technologies Space Instruments Test Services. Analysis. Test. Model Adaptation.

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1 Advanced Technologies Space Instruments Test Services Vibration Services K ω 2 M Analysis Test 100 Filtered Peak Model Adaptation Log g pk 1.000e e3 2e3 Frequency - Hz Centre Spatial de Liège

2 From Space to Earth... Centre Spatial de Liège (CSL) is a research center of the University of Liège, Belgium. CSL is one of the coordinated test facilities of the European Space Agency (ESA) and is working with the major space institutions in Europe and beyond. CSL is active in space industry as well as other industrial sectors. With over 40 years of experience in space industry and around 100 people, CSL is extensively skilled and has wide capabilities to offer services both in space and terrestrial applications. The capabilities are ranging from design to integration and validation test. Check out our vibration capabilities inside this brochure.

3 Introduction Based on broad and long experience, CSL has extended capabilities to propose full or bespoke services in vibration. This includes the following major services: FEM analysis and design Test with CSL vibration equipments Post-processing of the results Computed and experimental results cross-check with model update Application Examples: Space Optical Payload Lamp Post Plant Electronics Housing Rack Space Telescope Baffle

4 Facilities CSL houses 2 electrodynamic vibration facilities operated in clean rooms. They are 3-axis systems and allow sine, random and shock mode tests. The purposes of CSL test equipments are: Vibration of lightweight and heavyweight structures Simulation of launcher environment Dynamic signature Interface force measurement Fatigue test Earthquake simulation Furthermore, CSL operates force measurement devices and seismic characterization equipments. Shaker 2016U: Slip table: 900 x 900 mm² Head expander: 900-mm diameter Maximum sine force: 88 kn Maximum random force: 72 kn Bandwidth: Hz Shaker 4522 LX: Slip table: 1500 x 1500 mm² Head expander: 1500-mm diameter Maximum sine force 200 kn Maximum random force: 160 kn Bandwidth: Hz

5 Facilities Operations and Acquisitions: The M+P International operating system allows automatic notching and is equipped with 48 acquisition channels combined with a wide selection of accelerometers. Finally, 8 additional time history acquisition channels may be proposed. Cryogenic Vibrations: In the frame of Herschel-Planck project (ESA space mission), CSL has developed unique test facility combining unrivaled cryogenic skills with Helium systems and vibration test skills. The developed tool has following capabilities Minimum temperature: 20 K Maximum mass: 100 Kg Maximum acceleration: around 15 g RMS Maximum displacement: 4 mm peak to peak Force Measurement Device (FMD): CSL has developed a FMD for direct interface force control instead of base acceleration. The FMD is made off 6 Kistler force transducers of 20 kn each. Seismic Measurements: The seismic characterization are carried out with an acquisition system coupled to seismic Wilcoxon 731A accelerometers. 8 National Instruments acquisition channels are available. Test Facility Environment: Due to the CSL space heritage, the different vibration facilities are located in class clean room. 100 class may be proposed upon request.

6 Design and Analyses The design and analysis capabilities are proposed in partnership with partner companies or University departments, which are located at walking distance from CSL. With these complementary competences, CSL may propose global services including: Test sequence definition Hardware design and analysis with below capabilities Test interface tool design and analysis with below capabilities Test interface equipment manufacturing Partner companies and institutes are extensively skilled in design and analysis by Finite Element Method (FEM) and allow access to Samcef, Ansys, Hypermesh, LS-Dyna, Patran/Nastran, CATIA v4 & v5, Pro- Engineer, Solidworks, etc. Analysis capabilities give a wide choice of theoretical simulations such as: Natural frequencies and modes calculation Correlation and model adaptation upon test results Static and dynamic loads Harmonic and/or transient structure behavior Linear and non-linear behaviors Shock spectral analysis Seismic analysis Etc. Environment Requirements Those complementary skills allow full coverage of the vibrations and associated needs. Geometry FEM Ananlysis Hardware Test Theoretical Results Experimental Results Cross-check

7 Quality & References Standards and Certifications Centre Spatial de Liège has ISO certification. As ESA coordinated facility, CSL is working to ECSS-Q-20-07A standard Other standard requirements will be considered upon request. ECSS-Q-20-07A References Space Industry: European Space Agency, Thales Alenia Space, EADS-Astrium, Max- Planck Institute, Dutch Space, Institut d Astrophysique Spatiale, SONACA, Techspace Aero (Groupe Safran), SABCA, Micromega Dynamics, Euro Heat Pipes, OIP Sensors, etc Other Sectors: Arcelor-Mittal, AGC, CMI, Alstom, Forges de Zeebrugge, L Air Liquide, Snecma Moteurs, etc

8 Contact Centre Spatial de Liège Vincent Ruelle vruelle@ulg.ac.be Centre Spatial de Liège Liege Science Park Avenue du Pré-Aily B-4031 Angleur-Liège Belgium