Space Instruments
Advanced Technologies
Test Services
Vibration Services
Analysis
K − ω2M
Test
Model Adaptation
100
Log g pk
Filtered
Peak
1.000e-02
5
10
100
Frequency - Hz
1e3 2e3
Centre Spatial de Liège
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.
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:
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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
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:
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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:
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Slip table: 900 x 900 mm²
Head expander: 900-mm
diameter
Maximum sine force: 88 kN
Maximum random force: 72
kN
Bandwidth: 5-3000 Hz
Shaker 4522 LX:
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Slip table: 1500 x 1500 mm²
Head expander: 1500-mm diameter
Maximum sine force 200 kN
Maximum random force: 160 kN
Bandwidth: 5-2000 Hz
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
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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 10000 class clean room. 100 class may be proposed upon
request.
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:
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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, ProEngineer, Solidworks, etc.
Analysis capabilities give a wide choice of theoretical simulations such
as:
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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
Environment
Seismic analysis
Requirements
Etc.
Those complementary skills allow
full coverage of the vibrations and
associated needs.
Geometry
Hardware
FEM Ananlysis
Test
Theoretical
Results
Experimental
Results
Cross-check
Quality & References
Standards and Certifications
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Centre Spatial de Liège has ISO 9001-2000 certification.
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As ESA coordinated facility, CSL is working to ECSS-Q-20-07A
standard
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Other standard requirements will be considered upon request.
ECSS-Q-20-07A
References
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Space Industry:
European Space Agency, Thales Alenia Space, EADS-Astrium, MaxPlanck Institute, Dutch Space, Institut d’Astrophysique Spatiale,
SONACA, Techspace Aero (Groupe Safran), SABCA, Micromega
Dynamics, Euro Heat Pipes, OIP Sensors, etc
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Other Sectors:
Arcelor-Mittal, AGC, CMI, Alstom, Forges de Zeebrugge, L’Air Liquide,
Snecma Moteurs, etc
Contact
Centre Spatial de Liège
Vincent Ruelle
+32 4 367 6668
+32 4 367 5613
vruelle@ulg.ac.be
Centre Spatial de Liège
Liege Science Park
Avenue du Pré-Aily
B-4031 Angleur-Liège
Belgium