Some effects of crosswind on the lateral dynamics of a bicycle

The bicycle, being unstable at low speed and marginally stable at high speed, is sensitive to lateral perturbations. One of the major lateral perturbations is crosswind, which can lead to accidents and fatalities. Here we investigate the effect of crosswind on the lateral dynamics and control of the bicycle in a wide range of forward speeds and...

Guidance control and dynamics of a new generation of geostationary satellites

Exploiting Dynamics in robotic arms with repetitive tasks

Since the industrial revolution, machines have taken over many tasks from humans, increasing labor productivity and prosperity. In the 20th century, the introduction of robots created a second wave of automation, increasing the labor productivity even further. In order to create a third wave of automation, it is necessary to develop a new...

Balance and control of a rear-wheel steered speed-record recumbent bicycle

The goal of the Human Power Team from the TU Delft and the Free University of Amsterdam is to break the world speed record in unpaced cycling (Sam Whittingham, 133.28 km/h). The design of such a faired recumbent bicycle is a challenge. The Delft design, called VeloX (Human Power Team (2013)), is a fully-faired monocoque front-driven recumbent...

Curvature Manipulation of Photomasks - Enhancing the imaging performance of immersion lithography equipment

This thesis investigates the feasibility of a photomask curvature manipulator in immersion lithography systems.

Dynamics and Control of a Steer-by-Wire Bicycle

Already for some time, electronic enhancements regarding vehicle behavior has made its way into the aviation and automotive industry by the term "by-wire" technology. Electronic sensors and actuators are used to replace traditional mechanical systems in which software is used to operate the actuators in a way that is not possible with...

The real-time Hermes robot arm simulator: HSF-P

The Hermes manipulation system (HERA) is a sophisticated space manipulator system, which has to perform tasks ranging from berthing to tool operation in various operational modes from fully automatic to purely manual. The HERA system main contractor is Fokker Space & Systems B.V. (FSS). Development and qualification of such a space-based...

Dynamics modelling, simulation, and control of a spacecraft/manipulator system

Four well-known formalisms for mathematical modelling of the dynamics of a spacecraft/manipulator system are derived from the unifying d'Alembert principle. The Newton-Euler formalism is discussed in more detail, as it allows efficient numerical simulation. An algorithm is defined for the control of the manipulator end-effector motion in...