Two-part modelling format for modelling marine diesel engines in joules

The modelling approaches can go to two extremes: fully data-oriented and fully process oriented. Modelling for diesel engines is not excluded. Usually data-oriented is computational friendly and accurate and the latter is detail and flexible. A high-speed diesel engine model is missing in project JOULES. The objective of this work is to develop a generic diesel engine model and use it within JOULES so that it can fill in the vacancy of high speed diesel engine model as well as using for other engines. A two-part modelling format was proposed to provide flexibility and user-friendliness. Modifications including adding three sub-models, changing interface have been made to the DE A diesel model in order to satisfy the outputs requirement from JOULES, be converted into FMUs and fit into the two-part modelling format. A set of six versions of process part were achieved and the data part interface was determined. Sensitivity analysis was done to support the use of newly added sub-models. After validating all model versions, the mode was used in the case provided by Navantia. The results showed that the two-part modelling format is accurate enough for the work and extremely flexible. However, a long simulation time was recorded due to the use of FMUs.

Subject

diesel engine
modelling
two-part format
JOULES
FMI/FMU

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Student theses

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master thesis

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MscThesis.SDPO.015.020m.pdf

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