Relative Heave Measurement During Ship-to-Ship (STS) Transfer of Cargo

Ship-to-Ship (STS) cargo transfers can significantly improve the efficiency of offshore installations while reducing their associated costs. However, the added complexity of cargo transfers involving ship-mounted cranes at sea poses significant challenges. To address this, crane manufacturers have introduced Relative Heave Compensation (RHC)...

Assessment and analysis of hook mounted compensation methods for offshore wind turbine blade installation

During single-blade offshore wind turbine (OWT) installation, wind disturbance results in blade root motion. The sensitivity to this wind disturbance is more significant for larger blades, reducing the allowable installation weather limit. A potential solution is a Hook Mounted Compensator (HMC) between the crane and the load that can provide...

Scheduling Multi-Vessel Placement in Multi-Chamber Inland Waterway Locks Using Switching Max-Plus Algebra

Inland waterway transport is a low CO2 emission alternative to road transport. A shift towards more inland waterway transport could also help reduce road congestion and noise pollution. Infrastructure bottlenecking, particularly at locks, is part of the reasons preventing this shift. Congestion is leading to delays. Locks can be physically...

Integration of Condition Based Maintenance in the Preventive Maintenance Planning of Rolling Stock

Planning rolling stock maintenance based on prognostic data (Condition Based Maintenance, CBM) is a trend since the ideal timing for maintenance before failure can be planned. With the use of prognostics, a failure can be predicted so Corrective Maintenance (CM) can be avoided. Traditional rolling stock decision-making for Preventive Maintenance...

Hourly Traffic Density Based Decomposition in Non-Centralised Railway Traffic Management

The Dutch railway network is a dense network with 7000 kilometers of railway tracks spread over only 42 000 square kilometers [1, 2]. Additionally, the railways are responsible for 1.4 million passengers every working day [1]. These factors make both the infrastructure and timetable of the Dutch railway network extremely intricate. On top of...

An integrated sensor and process fault diagnosis framework for marine vessels

This research work tries to provide a model-based, distributed Fault Diagnosis (FD) framework that will eventually act as an early warning system for online monitoring of the marine propulsion process, in order to avoid future failures and accidents. Furthermore, the introduction of adaptive thresholds in the monitoring modules of the monitoring...

Mission-oriented modular control of retrofittable marine power plants

Marine vessels execute many missions during their life cycle, each associated with a different required power profile. The required power is to be provided by the power plant, which has a fixed set of equipment such as diesel engines, generator sets, electric machines, and batteries. Typically, the control of vessel's power plants consist of two...

Multi machine approaches for conflict resolution under moving block signalling

Railway networks are to play an increasingly large role in European transportation. This has boosted the urgency of railway innovations, of which the development of decision support systems for conflict resolution is an important aspect. This research contributes to this development by formulating a suitable mathematical approach for railway...

Modelling and Optimal Scheduling of Inland Waterway Transport Systems: A Switching Max-Plus-Linear Systems Approach

Inland waterways form a natural network infrastructure with the capacity for waterborne transport of people and goods for moving freight from seaports to the hinterland. Recently, Inland Waterway Transport (IWT) has been promoted more extensively by the European Union and various governments as it plays a crucial role in reducing road congestion...

Collision Avoidance for Autonomous Inland Vessels using Stereovision

The inland waterway once enabled an industrial revolution, yet the emergence of coalescent road networks has seen its true worth be all but disregarded. Despite the amenity of unimodal travel being compelling, growing awareness for sustainability has reignited interest in more fuel efficient modalities for transportation. Autonomous shipping has...

Performance prediction model for a Ship -to-shore crane: Productiviteit predictie model van een schip tot wal kraan

This thesis presents the design of a performance prediction simulation model for an ship-to-shore crane. Current STS crane models do not take new trends in container terminal operations into account like automation. These models do not predict the performance accurately. This can lead to logistical and financial <br/>consequences. Automation...

Roboat Formation Control: Sailing in Formation for Waste Transport using Roboat units

Formation control of autonomous surface vessels (ASVs) is researched extensively in the last years, since it has promising applications. However very few designed strategies have been validated during real experiments. In this research, two<br/>control methods for distributed leader-follower formation control are proposed: A Nonlinear Model...