Leland Teschler

Editor
Machine Design

Leland serves as Editor-in-Chief of Machine Design. He has 34 years of Service and holds a B.S. Engineering from the University of
Michigan, a B.S. Electrical Engineering from the University of Michigan;, and a MBA from Cleveland State University. Prior to joining Penton, Lee worked as a Communications design engineer, for the U.S. Government.

Articles by Leland Teschler
Looks like a conveyor, works like a wind turbine

Those attending the recent Windpower 2013 exhibition could get a first-hand explanation of the Looped Airfoil Wind Turbine, a concept said to overcome shortcomings of horizontal wind turbines. Devised by a startup called EverLift Inc. in Nassau, Del., the device looks a little like a conveyor belt with airfoils for cleats. The airfoils cut through the wind and push the belt along. Electric generators would be driven by the moving chain via a rack-and-pinion setup.

Model of the Leitwind direct-drive wind turbine on display at Windpower 2013
Scenes from Windpower 2013
Regardless of what you might think of wind energy as a power source, wind turbine technology can be pretty interesting.
All-electric racing cars
"They sound like the Millennium Falcon" 2

Could an electric car someday run at Indy? It’s a distinct possibility judging by developments in Formula 1 racing. Starting next year, all-electric cars will have their own racing class running under the auspices of the Fédération Internationale de l’Automobile (FIA), the same organization that handles Formula 1 racing.

 FIRST entries at the Chrysler booth.
Scenes from the 2013 SAE World Congress 1
A walk through this year's SAE show revealed flocked VWs, friction-stir welding robots, innovative electric motor technology, and a lot more.
Rotary actuators keep a level playing field
Camera operators roaming the sidelines of football games televised on ESPN these days have an easier time keeping up with the action on the field thanks to the clever combination of rotary actuators, a digital bubble level, and automated TV cameras
Losing a finger to a large fan 1
Cooling fans can cause amputations if they are not handled properly.
A better idea for patent reform
News reports say the U.S. Patent Office recently was quite busy because of a change in patent law that took effect March 16
Congress told energy efficiency regulations don't address environmental problems
An economist tells the Subcommittee on Energy and Power of the House Energy and Commerce Committee that market-oriented approaches to control pollution are much more cost-effective than government regulations such as energy efficiency mandates on vehicles and appliances
Wind power without wind turbines
Electrostatic wind power harvests wind energy with no turbine blades, gearboxes, or other expensive hardware. But there are still challenges to be overcome before the concept is ready for prime time.
Energy efficiency standards could spell an end to some induction motor types
Efficiency standards were once confined to integral horsepower motors but may soon apply to small motors and make certain kinds impractical to manufacture.
Plastic-film sensor may double as energy harvesting device
A special silicone-based material normally used to sense movement could double as an energy harvesting device in situations characterized by relatively large strain and relatively low forces.
Less wind than you might think
A recent analysis of worldwide wind energy by UNC and Harvard researchers indicates that geophysical and climate considerations reduce the amount  of energy available for harvest from the wind to well below prior estimates.
Sequestration frustration for R&D
As federal budget cuts kick in under the procedures known as sequestration, one of the more hotly debated casualties will be research and development funding
Simulation wrings out EV motors in the test lab
Electromagnetic simulation has advanced to where it can reduce the amount of track time devoted to finding problems in electric-vehicle drivetrains.
Kids could get a kick out of harvesting energy
A soccer ball with a generator built-in generates enough juice to power an LED lamp for a few hours.

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