http://www.cbc.ca/canada/ottawa/story/2009/05/11/tech-090611-helicopter-rotor-wind-turbine-quieter.html Ottawa invention aims to quiet helicopters, wind turbines
Last Updated: Monday, May 11, 2009 | 6:00 PM ET
CBC News
A Carleton University graduate student is trying to launch a business based on a device that could make wind turbines quiet enough to install closer to people's homes and make loud, rattling helicopter rides a thing of the past.
…
The Active Pitch Link was developed over roughly five years by a team of Carleton researchers overseen by professors and fellow Smart Rotor Systems co-founders Daniel Feszty and Fred Nitzsche. It is based on research that has been ongoing at Carleton for more than 15 years, Khomoutov said.
The device is installed at the base of the rotor blades and works by constantly adjusting the angle and stiffness of each blade to deal with aerodynamic effects that generate the noise and vibrations as a rotor turns.
Those aerodynamic effects result from the different conditions experienced by each blade as it passes through different positions in its path, Khomutov said.
…http://www2.carleton.ca/newsroom/news-releases/whirling-wizard-carleton-masters-student-creating-jet-smooth-helicopter-rides/
Printer-friendly format
Email this thread to a friend
Bookmark this thread
(1000+ posts)
Send PM |
Profile |
Ignore