Multi-Axis Force- and Moment-Load Test of a Hold Down Mechanism During Launch Phase

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Load vectors of all force/moment combinations
Load vectors of all force/moment combinations

Load introduction element
Load introduction element

Test setup
Test setup

  • Hold Down Mechanism are used for the fixation of movable subsystems of a satellite during the launch phase
  • the inertia forces caused by the launch are mainly supported by the mechanism instead of the potentially sensitive subsystem support
  • in the performed test, the mechanical strength of the mechanism with respect to different combinations of axial and lateral forces and moments was verified
  • in addition to the mechanical stability, also the functionality of load transferring frictional connections was investigated
  • for the realisation of the load combinations in a standard tensile testing machine, a complex load introduction element has been designed
  • using with appropriately positioned and oriented pulleys, a resulting rope force was applied to the load introduction elementso that the  specified load combination was achieved
  • the correct application of the force and moment combinations has been verified by a 6-axis load cell

Project details

Core competencies: Space

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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