New stability approach for offshore construction vessels

The Propeller as a Source of Noise and Vibration

New stability approach for offshore construction vessels

Cavitation Research on Ship Propellers

Computation of hull-pressure fluctuations due to non-cavitating propellers

Computation of hull-pressure fluctuations due to non-cavitating propellers

Inverse determination of ship propeller strength

Upgrades and Conversions of Floating Offshore Units: An Overview

UPGRADES AND CONVERSIONS OF FLOATING OFFSHORE UNITS

DelftaCopter Propulsion Optimization from Hover to Fast Forward Flight usingWindtunnel Measurements

Enlarging the flight envelope of aircraft has been a goal since the beginning of aviation. But requirements to fly very fast and to hover are conflicting. During the design of the DelftaCopter, a tail-sitter hybrid UAV with a single large rotor for lift in hover and propulsion in forward flight, the design of the rotor needs to properly balance...

Flight code convergence: fixedwing, rotorcraft, hybrid

Rotorcraft, fixed wing and hybrid Unmanned Air Vehicles (UAV) each have applications in which they excel. Traditionally, dedicated autopilot control code is written to accommodate flight of each UAV type. This causes fragmentation of control code and may lead to performance differences or errors. In this paper, we propose to use the same INDI...

INDI Control for the ObliqueWing-Quad Plane Drone

A type of UAV sharing the advantages of rotorcraft and fixed wing vehicles is the hybrid vehicle. Hybrid UAVs can take-off and land vertically and fly fast and efficient in forward flight due to the presence of a wing generating lift. However, combining the fixed wing and rotorcraft concept ends up in a multi-rotor with large dimensions when...