document

Matching the yard and product portfolio of Damen Shipyards

Huygen, R. (author)

master thesis 2017

document

Vibrations of geared propulsion drive train systems with non linear characteristics

Patsianis, N. (author)

master thesis 2017

document

Numerical Analysis of Bow Tunnel Thruster Performance

Mohan, A. (author)

A previous work at Royal IHC, following the observation from sea trials of trailing suction hopper dredgers (TSHD) that the turning performance of bow tunnel thrusters significantly reduced at slow forward speeds, studied the flow behaviour and performance of bow tunnel thrusters at slow forward speeds using Computational Fluid Dynamics (CFD)....

master thesis 2017

document

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

De Jonge, J.S. (author)

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...

master thesis 2017

document

Simulation study on Automatic Overload Protection Systems of offshore cranes

Schoorl, N.P. (author)

Offshore cranes are often equipped with a safety system, the Automatic Overload Protection System (AOPS), which should prevent cranes to be overloaded during lifts from load supporting structures with a relative movement. Yet, a crane is still exposed to a peak load as a result of the AOPS’ behaviour. Using an iterative method, a simulation...

master thesis 2017

document

Improving the control and execution of the mail and parcel collection process under uncertainty in collection volume

Duppen, D. (author)

master thesis 2016

document

Vessel motion based criteria for pipeline Abandonment and Recovery operations

Sri Paravastu, R.K. (author)

Offshore pipeline installation is limited by pipeline integrity during the laying process. Pipeline integrity is evaluated with the help of buckling checks, which help determining the feasibility of pipeline installation for a given sea condition. The operational limit of pipeline installation is determined during project preparation, by...

master thesis 2016

document

Non Linear Roll Damping Of Allseas’ Cargo Barge Iron Lady

Bitounis, S. (author)

master thesis 2016

document

Design of Ampelmann Ship to Calm Buoy Connection

Sreedharan, A. (author)

master thesis 2016

document

Pioneering Spirit Topside Lift System Interface Design

Van Campen, D.M. (author)

Pioneering Spirit, Allseas newest vessel, is specialised in offshore platform installation and decommissioning. The goal of this research is to find a solution for the interface between the topside lifting system and platform jacket legs without the necessity of lengthy preparation work to platform. In a research regarding platforms...

master thesis 2016

document

Design principles to ascertain the manoeuvrability of small offshore vessels in the conceptual design stage: Manoeuvring vs. course-keeping

Sakthivel, V. (author)

master thesis 2016

document

Energy Storage for DP

Malikouti, C. (author)

The present study investigates the implementation of energy storage devices on board a vessel which functions in dynamic positioning mode at some part of its operational profile. For the purpose of deriving quantifiable results the paradigm of a platform supply vessel is utilized. In order to conduct this analysis there were four steps that were...

master thesis 2016

document

The Effect of Braces in an Asymmetric Semi-Submersible Hull: A Structural Weight and Multiaxial Fatigue Assessment

Tromp, J.M. (author)

Heerema Marine Contractors is looking into a new semi-submersible crane vessel concept with an asymmetric hull. The necessity of braces (connections between the portside and starboard hulls) for this vessel is questioned, based on earlier vessel developments and operational experience. This study addresses the influence of braces on the...

master thesis 2016

document

Permanent frame tilt in a submarine pressure hull due to cyclic tank pressure on a wing bulkhead with allowance for ratcheting

Huiskamp, E. (author)

Only abstract available due to confidentiality

master thesis 2016

document

Ultimate stress analysis in the early design stage of a topside support structure on an FPSO: A comparison of two methods

de Jong, M.J. (author)

master thesis 2016

document

Dynamic Positioning during Heavy Lift Operations: Using fuzzy control techniques, Nonlinear Observer and H-Infinity Method Separately to Obtain Stable DP Systems for Heavy Lift Operations

Ye, J. (author)

Dynamic positioning has been developed for over half a century and is now widely used on board. However, the existing dynamic positioning system is not specially made with heavy lift vessels. This report is to solve the dynamic positioning problem during heavy lift operations. To fulfill this goal, the robustness and stability of the solutions...

master thesis 2016

document

Optimization of maintenance strategy for power generation on satellite gas platforms

Haans, R.P. (author)

Declining production, continuously rising cost levels, low oil prices and the subsequent declining reserves, are forcing the oil and gas industry to reduce its operating expenditures. This study focuses on how the best maintenance policies for the power generation on unmanned satellite gas platforms of Total Exploration and Production...

master thesis 2016

document

Numerical Research on Elasto-Plastic Response of FPSO Topside Modules Subjected to Blast Loading Aiming at a Simplified Design Method

Zahiri Esfahani, F. (author)

Structural blast analysis is usually done with two load levels for different design stages; the Strength Level Blast, SLB, and the Ductility Level Blast, DLB. Strength Level Blast is the lower magnitude overpressure (with a higher frequency of occurrence and lower consequence) and Ductility Level Blast is the higher magnitude overpressure (with...

master thesis 2016

document

Blast analysis of offshore topside structures: Predicting plastic effects in linear calculations

Aydin, C. (author)

One of the most dangerous events that can occur on an offshore topside structure is an explosion. If blast analyses is performed without taking plasticity into account, then it may lead to very conservative design. On the other hand monitoring the weight by optimising the structural design is an important design aspect of such structures....

master thesis 2015

document

Changing the cross-sectional geometry of a bow tunnel thruster: Effects on the performance of the thruster at slow forward motion using Computational Fluid Dynamics

Schaap, T. (author)

In this master thesis the flow behavior and the performance of a bow tunnel thruster at slow forward vessel motion is studied using Computational Fluid Dynamics (CFD). The study analyzes the flow and the turning ability for a cylindrical cross-section and the effect of changing the cross-section of the bow tunnel thruster. At Royal IHC it is...

master thesis 2015