This proposal describes a joint project of the Center for Embedded Systems Engineering (CESE) at Linköping University and Saab Dynamics AB. This project deals with system-level design methods and tools for mixed hardware/software systems, with special emphasis on real-time issues. The project is part of CESE’s research in the area of engineering techniques for time and safety critical embedded ...

Ajalugu saab ja peab tegema ka ilma matemaatiliste meetoditeta. Kuid mõnes mõttes tundub mulle ajaloolane, kes kaasajal ei taha kasutada neid meetodeid, umbes inimesena, tahab sõita Moskvasse. otsustab mitte Estoniaga1, vaid võtab kepi kätte hakkab jala minema… (Juhan Kahk 1988 [1980]) „Eile tabas meie linna selline rahetorm, millist mäleta […]

The use of carbon composites has continuously increased in the commercial aircraft industry due to more challenging weight targets which is one way to handle the environmental requirements to lower the CO2 emissions. One type of aircraft structure component made at Saab Aerostructures is long and slender U-sections manufactured in carbon composites. The manufacturing is performed by manual layu...

Arvutuslikud meetodid ja töövahendid on viimasel ajal jõudsalt humanitaarteadustesse levinud. See taaskäivitanud arutelu uurimisobjekti ning selle matemaatilise esituse või analüüsis kasutatava mudeli vahelise suhte üle. Kas midagi niivõrd kompleksset nagu romaan saab uurida nii lihtsal moel selles esinevate sõnade loendamine? Ehkki mõned uurijad leiavad, et tänapäevased loomuliku keele töötlus...

Saab Aeronautics has chosen Modelica and Dymola as part of the means for model based system engineering (MBSE). This paper will point out why a considerable effort has been made to migrate models from other simulation tools to Dymola. The paper also shows how the models and tools are used, experiences gained from usage in an industrial context as well as some remaining trouble spots.

The goal of this technical report is to give the details of a real world existing sub-system in the automotive industry. It is produced to be used for reproduction of the same experiment if other researchers are interested in. Hence, it would be possible to compare the results of our published studies with the results of similar tools. The data is collected for the purpose of applying metaheuri...

Using data from extensive vibrational tests of the new aircraft Saab 2000 a combined method for vibration analysis is studied. The method is based on a realization algorithm followed by standard prediction error methods (PEM). We nd that the realization algorithm gives good initial model parameter estimates that can be further improved by the use of PEM. We use the method to get insights into t...

Assuming the continuum hypothesis, we construct a universally weakly measurable function from [0,1] into a dual of some weakly compactly generated Banach space, which is not Pettis integrable. This (partially) solves a problem posed by Riddle, Saab and Uhl [13]. We prove two results related to Pettis integration in dual Banach spaces. We also contribute to the problem whether it is consistent t...