Bachelor-/Master Thesis: Live lifetime calculation of an Offshore Crane Winch

Webseite Institute for Machine Elements and Systems Engineering

The Institute for Machine Elements and Systems Engineering (IMSE) researches the fundamental structural and tribological behaviour of machine elements and represents it in experimentally validated model descriptions. These models are used to organize and analyse the behaviour of technical systems in terms of functionality, losses, and noise emissions with a focus on drive technology. The developed models also serve as basis for the research and development of methods of Model Based Systems Engineering which are central elements of future industrial product development processes.
Drivetrain failures in the open seas are very costly and time-consuming to fix, and for various offshore systems there exists no models to predict the future state of the system. Therefore, it is important to determine the current state of such systems using simulation models with globally available data as input (motor torque, wave height, carried weight, etc.) in order to predict their lifetime. Comprehensive models have been created in the institute which calculate the lifetime of AHC-activated offshore winch drivetrains, however some further analysis is needed.


  • Running simulations on a full-model of the crane winch drivetrain to study the effects of external influences (ex. waves, excitations) on the internal loads and lifetime of the drivetrain
  • Reducing the full model into a simple model using insight gained from the simulations to enable live lifetime calculation
  • Comparing accuracy and real-time capability of reduced model against full model


  • Independence and reliability in work
  • Interest in drivetrain modelling and reliability analysis
  • Prior knowledge in Matlab/Simulink necessary
  • Prior knowledge in MBS (Simpack) of advantage

We offer:

  • Possibility to start immediately
  • Intensive mentoring
  • Supportive work climate
  • Research experience for a future career in academics or industry


We look forward to your application by email:

Yousri Mohamed, M. Sc.
Institute for Machine Elements and Systems Engineering

Schinkelstraße 10, 52062 Aachen

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