Training: Robust Design and Reliability Analysis

The one-day seminar gives a short introduction to probabilistic theory and provides the background of the terms robustness and reliability. The application of robustness and reliability assessments will be demonstrated by using an application example of an optimized design.

Virtual product development is conducted using deterministic parameters, hence under idealized conditions. Particularly in the context of product optimization, the product performance under random influences (tolerances, external influences) has to be warranted to fulfill the requirements.

For a robustness analysis, input parameters are modelled as random variables. The result of a robustness assessment is a prognosis of the variation of the product performance in connection with the prognosis quality of the simulated system response. Moreover, the most relevant inputs influencing the scatter of the system response can be identified.

For the proof of quality or safety requirements, optiSLang offers methods of reliability analysis, which compute the rare event of exceeding a –possibly non-linear– limit state.


  • Robustness evaluation: introduction, terms, Design for Six Sigma
  • Iterative Robust Design Optimization (RDO)
  • Coupled RDO
  • Basics of reliability analysis
  • Methods of reliability analysis: FORM, Monte Carlo und varianz-reducing methods
  • Training project: robustness and reliability assessment of an optimized design



As a prerequisite, basic knowledge about statistics and optiSLang is required which can be obtained by attending the training "optiSLang basics". We recommend the training "Statistics on Structures" for further study of the subject.


Dr.-Ing. Veit Bayer

1 Day Seminar from 9am-5pm

min. 5 to max. 8 participants 

500 Euro (excluding VAT)

50% for students
30% for university members / Ph.D. students

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