Dynamic Positioning around an alternative control point

Traditionally, the control point (CP) of a dynamically positioned vessel is located around its center of gravity (CoG). However, during offshore operations, other locations, such as the crane tip or gripper position, become more critical due to the load being located there. This thesis proposes shifting the control point from the CoG to an...

A distributed approach to improve inland water transportation addressing privacy and incremental improvements

Currently, inland waterway shipping mainly includes barges and bulk transportation with little to no variation in volume, product, and route. Since transport over water emits less CO2 per tonne-km than road transport, a potential way to reduce CO2 emissions is to transport more containers via inland waterways. Large delays cause unreliability,...

Introduction of PEM Fuel Cells on Inland Ships

The CCNR will ensure that in 2050 inland ships do not emit any emissions. A PEM fuel cell system running on pure hydrogen could be a solution. However, the new system imposes some difficulties on the design of the inland ship. A calculation model is created to evaluate inland ships with this system and research these difficulties. The...

Distributed IDA-PBC for Nonholonomic Mechanical Systems

Nonholonomic mechanical systems encompass a large class of practically interesting robotic structures, such as wheeled mobile robots, space manipulators, and multi-fingered robot hands. However, few results exist on the cooperative control of such systems in a generic, distributed approach. In this work we extend a recently developed distributed...

Long-Term Feedback Enabled Energy Management Control Framework for Ships with Hybrid Power Supply

In the present study, a Model Predictive Control (MPC) - based, Energy Management Strategy (EMS) is proposed, aiming at the minimisation of the fuel consumption of vessels with hybrid propulsion and power supply. This approach is capable of utilising online information regarding realistic future predictions of the propulsive power demand,...

Hull Generation for Fast Concept Exploration: Development of a Brute-Force Approach to Quickly Obtain Hull Shapes and a Resistance Prediction for Offshore Patrol Vessels

Damen Shipyards Gorinchem has found deficiencies in the process of developing concept designs of Offshore Patrol Vessels (OPVs). There is a need to increase the efficiency of this process, meaning that (1) the speed has to be increased, (2) the accuracy of designs has to be increased and (3) the risk of deviations of the project plan has to be...

How mature are your lead time estimations?: The proposal of a planning and estimation maturity framework for the maritime industry

During the start of a project organisations make estimation on the expected amount of work and the corresponding project duration, the lead time. To make these estimations with a low uncertainty is important because a false estimation could result in cost overruns and project delay. This paper proposes an estimation and planning maturity...