Pile-template interaction during offshore pile driving

In recent years the global energy demand has rapidly increased and will continue to grow in the next decades. With the growing demand for energy and the international agreement to use more renewable energy, the offshore wind industry is developing rapidly. This causes offshore wind farms to be installed at locations with larger water depths and...

Train Speed Profile tracking using Linear Quadratic Regulator

In order to track the speed profile, a case study using a linear quadratic regulator (LQR) is addressed in this paper. A time-invariant nonlinear train motion model is constructed. To apply LQR, the quadratic term of the aerodynamic drag and the rolling mechanical resistance is linearized. Gradient resistance, curve resistance, and other...

Development of an optimizing tool for design of tailored PV modules through Cell To Module (CTM) factor modelling

The advancement of innovative PV technologies has led to an all-time high integration of the same in the urban environment. Furthermore, development of decentralized power systems complements this rise as it supports in-situ power consumption. Due to space availability constraints in urban environments and a need for appealing aesthetics,...

Development of a Reliable and Efficient 3D Calculation Model of a High-Rise Building Under Seismic Loading

This thesis research focusses on the development of a reliable and efficient 3D calculation model of an existing high-rise, reinforced concrete building in the Groningen area, in order to analyse the dynamic behaviour of the existing and subsequently retrofitted main bearing structure of this high-rise building. The assessment of the existing...

Development of an adaptive intentional controlled islanding scheme and post-islanding corrective control actions

Power systems have undergone major changes the past few decades, leading to an increase in the frequency of occurrence and severity of blackouts. Intentional controlled islanding constitutes the final resort to rescue the system from a blackout by separating the network into islands in a controlled manner. Various post-separation control action...

Design of a capacity model for the in- and out-feed process of ULDs at KLM Cargo's future warehouse system

Heave reduction of the crane tip of a J-class vessel by inducing a roll moment using active ballast systems

To compensate the heaving motion of a payload during deep water offshore installations, hanging from an on-board crane on a monohull vessel, a new concept is being investigated. By actively rolling the vessel using ballasting systems, the coupled heave motion of the crane tip can be reduced significantly. This is investigated by building a...

Comparison of different wavefront reconstruction methods: With Zernike polynomials

The goal of the research is to find out whether it is possible to measure a wavefront qualitatively and quantitatively with Janssen’s recently developed analytical algorithm. The spot displacements given by the wavefront sensor are used to relate the derivatives of the wavefront with respect to x and y with the Zernike coefficients of the...

Cooperative Sequential Composition Control for Compliant Manipulation: An Approach via "Robot Contact Language"

A convoluted manipulation task involves extensive planning and the use of a supervisory controller to execute the desired task. One controller specification is generally unsuitable to perform the complete manipulation task. Manipulation involves contact of the object being manipulated with robots, surfaces and other objects in the scenario. The...

The effect of humidity and strain on the electrical resistance of an epoxy based nanocomposite: An experimental and numerical investigation

Recent advances in nanocomposites based on conductive carbon nanotubes (CNTs) have led to investigations of using CNT networks as strain sensors. When CNTs are incorporated into a polymer matrix to form electrical networks, the developed conductive nanocomposite becomes sensitive to strain, thus a linear correlation can be found between strain...

Reducing the survival of pathogens in urban water by making optimal use of natural processes

Pathogens are present in our urban water system, and may pose a health risk to swimmers and playing children. Although the knowledge of pathogens has increased over recent years, little is known about their behaviour in the urban water system. The goal of this thesis is to investigate this. First, the behaviour of pathogens under the influence...

Framework of Model-Based Health Optimization on the Electrical Power System

The advanced ageing of the electrical power network combined with the inevitable increase of renewable energy utilization and the constant increase of power consumption over the last decades call for a change in the current power network paradigm. Electrical world stakeholders have to embrace the situation and come up with methods of better...

Two Sensor Array Beamforming Algorithm

Nowadays, noise reduction in mobile communication is an increasingly important topic. This thesis discusses the possibilities of using beamforming with a two microphone array for smartphone applications. The goal of the project is to realise a beamforming algorithm for smartphones to improve on current Signal to Noise ratios attained by standard...

Focusing one dimensional models by using the ‘Single-sided’ autofocusing procedure of Rose for layered materials