Thermo-Elastic-Deformation (TED) Testing for a Highly Stable Star-Sensor Bracket

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Special test rig (Clearceram) for the TED Test developed by KRP
Special test rig (Clearceram) for the TED Test developed by KRP

Test preparation  - star sensor bracket installation on TED test rig
Test preparation - star sensor bracket installation on TED test rig

Star sensor bracket with installed heating system for the application of defined temperature gradients as well as deformation measurement adapters
Star sensor bracket with installed heating system for the application of defined temperature gradients as well as deformation measurement adapters

  • Planning, performance and evaluation of thermo-elastic deformation testing for a ceramic (HB-Cesic®) star sensor bracket for Meteosat Third Generation Satellite
  • Design and development of a highly accurate deformation measurement test rig and measurement system to meet the required accuracy to verify the strict TED requirements of the sensor bracket
  • The high measurement accuracy was achieved by a combination of a highly stable test rig (Clearceram) and high precision sensors
  • Development of a sensor configuration to measure displacements as well as rotations of the star sensor supports (accuracy <1µrad/K)
  • TED tests were performed for homogenous as well as asymmetric temperature loads
  • For the application of defined gradients for the inhomogeneous temperature load cases, a special heating system based on heater foils has been developed and applied
  • The TED tests have been accompanied by respective thermo-elastic FEM simulations

Project details

Core competencies: Space
Program: MTG
Customers: ecm

KRP Mechatec GmbH is an engineering services provider specialized in structural tests and analyses in the field of space, aviation, experimental research and other high-tech industries, certified according to DIN EN ISO 9001:2015.

 
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