Design for Reliability (DFR), Modelling and Reliability Prediction

Process scheme for the approval of a type certificate

” Reliability tools such as DFR  ensure that company targets and customer expectations for reliability are fully met throughout the life of the product with low overall life-cycle costs.


An advanced methodology was used to study the impact of design parameters to reliability of bearings and springs in depth .

The modelling showed that only certain parameters, the reliability prediction drivers, had a significant impact on the failure rate calculation.  These parameters were then used as input for DFR.

DFR is a six step process which helps achieve the company’s reliability target for its products, thus saving in warranty costs, occurrences in the field and effort during design phase.

Customer profile:  Research center

Product: Standard for bearings and springs

Development period:  Year 2010

Skills: Testing methodology, modelling

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