Researchers of the Delft University of Technology, working with colleagues from Cornell University and the University of Nottingham, UK, believe they have now found the ultimate model of the bicycle. The researchers discuss their findings in the new edition of Delft Outlook, the science magazine of TU Delft.
'Bicycle manufacturers have never been able to say precisely how a bicycle works', explains Dr Arend Schwab of the Faculty of Mechanical, Maritime and Materials Engineering (3mE). 'They have always had to refine their designs purely through experimentation. In our model, they can enter into the computer all of the various factors that influence the stability and handling of their bicycle. The model then calculates how the bicycle will react at specific speeds.' The model has recently been published in the science magazine Proceedings of the Royal Society, Series A.
Because the model has the ability to indicate whether a design will deliver a jittery bicycle, or indeed a stable one for seniors, the bicycle industry is highly interested in the findings. The head of product development at the Dutch bicycle manufacturing company Batavus, Rob van Regenmortel, is following the research being conducted by Arend Schwab and his fellow researcher Jodi Kooijman very closely.
Van Regenmortel: 'In designing our bicycles, for years we have worked with three parameters: The overall geometry, the distance between the axles and the angle at which the fork points downwards. These choices were once made by all bicycle makers and have been rarely deviated from because the bicycle appeared to work properly. However, with the new model, we soon hope to be able to design bicycles that are much better oriented toward specific target groups.'
Rob Van Regenmortel hopes to collaborate with Arend Schwab and Jodi Kooijman on a follow-up project to study the human control. The ultimate goal of the bicycle research is to study the interaction between bicycle and rider in order to determine the handling quality of the bicycle. 'In this way, we can – in theory – create a customised bicycle for every rider', says van Regenmortel. 'Individuals who have trouble maintaining their balance, for example, would then no longer be restricted to a tricycle.'
The complete article on this subject is available in the new edition of Delft Outlook, the independent science magazine of TU Delft. The new issue also includes a story on the role of clouds in climate change, a study by Delft researchers on irrigation in Tanzania, and the invention of an air-conditioned bed.
Maarten van der Sanden | alfa
Smart Data Transformation – Surfing the Big Wave
02.12.2016 | Fraunhofer-Institut für Angewandte Informationstechnik FIT
Climate change could outpace EPA Lake Champlain protections
18.11.2016 | University of Vermont
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
06.12.2016 | Materials Sciences
06.12.2016 | Medical Engineering
06.12.2016 | Power and Electrical Engineering