Tim is a mathematician with experience in reliability probability estimation. He completed his studies in mathematics with a focus on frequentist statistics at RWTH Aachen University in Germany. His Master thesis featured the combination of two well-established models in reliability theory, the Stress-Strength model and the Competing Risk model, in the presence of censored data. His research yielded maximum likelihood-estimators for model parameters as well as the reliability probability under an exponential assumption, amongst other inferential results.

Tim is passionate about the application of statistical models to real world problems and overcoming the challenges with such applications.

Tim’s research aims to develop a model for technical systems (ideally k-out-of-n) with non-identical components that better adapt to the dependence structure amongst assets. The ultimate goal is to reliably estimate asset lifetime at different stages of the operating process. For example, in a system consisting of 4 assets working in parallel, how long do we expect each of the assets to run before they fail. Also, if one of the assets has already failed, how much longer do we think the other three assets will last.

Based on Tim’s research aims, his areas of interest include:
• Load sharing system,
• k-out-of-n system,
• non-identical components, lifetime and/or remaining useful life estimation.

Suitable data for his research would consist of lifetime data of named systems. Ideally un-censored, but practically Tim understands that he will have to deal with censoring at some stage and his research will aim to include this assumption into the model.

Tim will be undertaking his PhD in Research Theme 2 with Assoc. Prof. Adriano Polpo and Dr. Edward Cripps at the University of Western Australia.