Search for dissertations about: "sinusoidal modeling"
Showing result 11 - 15 of 17 swedish dissertations containing the words sinusoidal modeling.
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11. Modeling and Analysis of the Interaction of Batteries and Power Electronic Converters
Abstract : This thesis deals with the interaction of batteries and power electronic converters in automotive applications. Even if the additional heating caused by (unwanted) alternating currents is disregarded, there has been a concern that alternating currents can be harmful for batteries. READ MORE
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12. Life Prediction and Mechanical Behavior of Thermal Barrier Coatings
Abstract : Delamination and spallation of thermal barrier coating (TBC) systems, used in hot parts of gas turbines, have been studied with respect to thermal fatigue. TBCs with and without pre-existing cracks were investigated. Thermal shock tests were performed until coating spallation. READ MORE
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13. Methods for Simulation and Characterization of Nonlinear Mechanical Structures
Abstract : Trial and error and the use of highly time-consuming methods are often necessary for modeling, simulating and characterizing nonlinear dynamical systems. However, for the rather common special case when a nonlinear system has linear relations between many of its degrees of freedom there are particularly interesting opportunities for more efficient approaches. READ MORE
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14. Stiffness characterization in Non-Crimp Fabric Composites
Abstract : Lightweight materials with high stiffness and damage tolerance are requested for aerospace, marine and automotive industries. Many types of composite materials are today used in various types of load carrying structures, due to their excellent strength and stiffness to weight ratio. READ MORE
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15. A Novel Signal Model and Estimation Method for Acoustic Doppler Current Meters
Abstract : This thesis deals with the process of estimating underwater current from the backscattering signal transmitted from an ultrasonic transducer. The narrowband sinusoidal burst signal is Doppler-shifted due to the current, and this information is converted into current. READ MORE