Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 63 for “"Dynamic modelling"”.
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Analysis and dynamic modelling of complex systems
… Here physics with its rich experience in modelling complex systems could play a much more important role than that of an ancillary science.<br>In the following, different biological systems are investigated in order to reach a model based understanding. This mathematical description then …
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Dynamic modelling of variable renewable energy generation sources
… that few of these studies have considered the dynamic behavior and feedbacks of these systems, including investment delays and learning curves. This thesis uses system dynamics models to simulate the long term changes in the electric grid for Texas. The goal is to test two hypothesis: that the …
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Dynamic modelling of Japan's transition to offshore energies
… will be examined. Finally, using system dynamics modelling, an abstracted model of Japan's energy industry will be used to study the feasibilities and the potential impacts of the proposed offshore solutions. Specifically, the model examines the impacts on Japan's energy self-sufficiency, …
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Dynamic modelling of lightweight high-strength concrete under impact
… high-strength concrete (LWHSC) under static and dynamic loadings. A new strain-based damage model is developed based on continuum damage mechanics. The proposed model incorporates the strain rate effects on various concrete properties, such as tensile and compressive strengths, critical strains …
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Dynamic modelling of arch dams in the ambient state
… analytical formulation that can be used in the dynamic modelling of arch dams, for structural health monitoring purposes. A hypothetical arch dam model was created to investigate the influence of a reservoir’s orientation and geometry on the dam’s dynamic properties, and the discrepancies …
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Dynamic modelling of SOFC marine power systems and shipboard applications
… of marine SOFC systems at both static and dynamic working loads. A mathematical model is developed for describing the thermodynamic nature of a tubular SOFC concerning the thermal equilibrium of the system. Electric-chemical reactions are reflected in the stack modelling. Reforming …
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Dynamic modelling of compression ring conformability in high performance engines
… compression ring will undergo a series of thermodynamic morphological stages, the material will change shape due to the heat from the combustion process and suffer material loss due to the friction wear between cylinder wall and ring face. This thesis examines the impact of the running-in method …
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Development of a dynamic modelling of biomass boilers using flownex
… The present work focusses on developing a dynamic model of a unique hybrid water-tube—fire-tube boiler. The numerical model has been developed using Flownex, a one-dimensional thermohydraulic simulation software with the aim of presenting credible insights into transient performance and …
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Static and dynamic modelling of the South African real sector
This thesis provides a detailed investigation of the applicability of various economic models to the South African real sector. It has been written primarily for the statistician, and thus presentation of economic theory has been in a straightforward and, if possible, mathematical form. Chapter One …
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Dynamic modelling and simulation of the all-vanadium redox flow battery
… This thesis aims to explore first-principle dynamic models that can be subsequently utilized in model-based control system development for the safe and efficient operation of the VFB under a range of temperatures and cycling conditions. The work begins with modelling of the effects of …
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Development of a Dynamic Modelling Technique for Sizing Wood Chip Boilers
… second model was divided in to two sub-models; a dynamic model for an annual heat consumption calculation in a single building and a dynamic model that enables the connection of the consumptions of several buildings of a district heating system to be studied on an annual basis.<br/>- The third …
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A new approach for the dynamic modelling of the human knee
… one. However, the standard procedures for the dynamic modelling of the knee tend to be more focused on the second aspect: the motion of the joint is correctly replicated, but the stabilizing role of the articular components is somehow lost. A first contribution of this dissertation is the …
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Dynamic modelling and control of a magnetic bearing-suspended rotor system
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1988.
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Multi-Factor Dynamic Modelling and Forecasting of Interest Rates and Equity Markets
… estimation techniques are employed towards the dynamic modelling and forecasting of the term structure of interest rates, both independently and in conjunction with equity markets. The first empirical investigation is motivated by the recent call for richer specifications following the global …
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Dynamic modelling of articulated figures suitable for the purpose of computer animation
… thesis investigates the possibility of using dynamic analysis in order to define the motion of articulated bodies. Dynamic analysis uses physical quantities such as forces, torques and accelerations, to calculate the motion of the body. The method used in this thesis is based upon the inverse …
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Dynamic modelling and simulation of electric power systems using the Newton-Raphson method
… thesis is concerned with the development of a dynamic power flow computer algorithm using Newton's method. It addresses both the development of a positive sequence dynamic power flow algorithm for the dynamic study of balanced power systems and a fully-fledged three-phase dynamic power flow …
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Generic dynamic modelling and model-based trajectory tracking control of wheeled mobile robots (WMRs)
This thesis focusses on the dynamic modelling and on the systematic evaluation of model-based control schemes for trajectory tracking of Wheeled Mobile Robots (WMRs) for industrial applications. The research extends the theoretical and experimental work at the Centre for Industrial Control, …
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Dynamic Modelling and Optimization of Hydrogen Refuelling Stations and Their Integration with Renewable Microgrids
… J2601-5. In this context, this thesis presents a dynamic modelling of Hydrogen Refueling Stations modelling and their integration into optimized renewable microgrid, addressing both technical performance, techno-economic and environmental feasibility. In particular, the research is structured in …
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Dynamic modelling and emulation of a high temperature proton exchange membrane fuel cell (HT PEMFC)
… that takes into account the steady state and the dynamic characteristics of the fuel cell. The emulator hardware is developed from first principles and tested to evaluate performance under dynamic operating conditions. Phenomena such as polarization curve hysteresis and fuel starvation is …
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