Management & Engineering of a new and innovative concept for transportation and installation of windturbines and connected foundations

Structural and mechanical Engineering/Projectmanagement
Structural design of steel structures in resp. a Trailing Suction Hopper Dredger (TSHD), Modular Offshore Platform, Floating pontoon including A-frame and Marine vessel (using FEMAP or manually calculated using MathCAD), according to Lloyd’s Register design standardsMechanical design and review of hydraulic- and electrical- drives including control systems on board TSHD.
Design and review of P&ID process and piping diagrams on board TSHD and Marine vessel according to Lloyd’s Register design standards.

Structural and mechanical Engineering/ProjectmanagementDesign of a modular offshore platform according to SNAME standards, subject to wave-, wind- and current loads, in using static and dynamic strength calculations.Structural design of steel deckstructures in a Container Roll on- Roll off Ship (according to design standards of Bureau Veritas).Structural design of midship section of a Floating Modular Dock by means of longitudinal strength calculation (according to Lloyd’s Register design standards).
Drafting Stability booklets of a Floating Modular Dock by means of PIAS software (according to Lloyd’s Register standards)
Weight calculation of a pipe-laying offshore vessel.Design and review of P&ID process and piping diagrams on board of a Container 
Roll on- Roll off Ship vessel according to Lloyd’s Register design standards.

Consultancy of Boskalis Business Units (TD, Offshore Hydronamics, Business Office) about the availability of dredgers in seaway. Decisive in this respect are the dynamics of dredging installations due to ship motions in seastate. Ship motions are calculated using the software Octopus Seaway. For the dynamics calculations on marine structures and dredging systems Framework and time-series simulations in Excel have been used.Also dynamics calculations for lifting, sinking- and landing processes of ROVs in deepwater operations, using heave compensators, have been carried out. In close consultation with the Business Units a new design of a backhoe dredger and a dredging installation for mining operations have been examined and engineered using Octopus Seaway modeling software.For the purpose of stabilizing a pipeline in deep seawater a concept design of a ROV, equipped with a drilling rig, have been defined, whereby piles can be drilled and anchored in a rock seabed. 
Project Coordination and Control, and initiation of innovative solutions in dredging and offshore projects also belonged to my tasks.

Design of a modular offshore platform according to SNAME, GL, API and DNV standards by means of static and dynamic strength calculations. Forces on the piles are based on Morison’s equations. The finite element program Framework have been used for making the static and dynamic structural calculations. The fatique design of the piles and topside of the platform are based on DNV standards. The soil boundary conditions in the pile-soil interaction were based on SNAME standards.The strength of the steel structures of the separate platform components are calculated using the Ansys FEM module, included in Inventor.The dynamic motions of the platform in heavy seas have been carried out using Delfrac (TU Delft) and MATLAB. For diminishing the loads on the piles during landing procedures of the platform on the seabed a damping- and spring system have been developed and patented.

Fatigue design of the ladder steel construction of custom-built cutter suction dredgers, which are subject to a dynamic load due to the cutting of hard rocks. Feasibility study on the use of alternative energy sources (fuel cells) and electrical drives (AC asynchronous motors, permanent magnet motors) on board of a 300 Beaver cutter suction dredger.Concept design of a cutter drive, wherein the cutter is coupled to a hollow rotating suction tube, which is driven by in series connected high torque/low speed permanent magnet motors.

Design of offshore structures in accordance with API and SNAME standards.
The static structural calculations of the jacket and topside are carried out using STAAD as a finite element program. The dynamic response of the offshore structure under influence of mass inertia, wave-, wind- and current forces is calculated according to SNAME standards. The strength and stability of the jacket foundation on the seabed is calculated by means of soil mechanics according to API standards.Static structural calculations on a wheel construction according to DIN standards, using MathCAD.