Make no mistake -- lean manufacturing is here to stay. And no wonder. As a fiercely competitive global economy continues to alter companies’ “Main Street” thinking, that relatively new dynamic is spurring the need for “I-need-it-yesterday” production output. And for increasingly more industries -- big or small -- that means getting as lean as you can, as fast as you can.
This article provides an overview of the benefits of using psychoacoustic characteristics for describing gear
noise. And with that, human hearing and the most important psychoacoustic values are introduced. Finally, results
of noise tests with different gear sets aree presented. The tests are the basis for a correlation analysis between psychoacoustic values and gear characteristics.
It is said that “The squeaky wheel
gets the grease.” Ok, but what about gear noise? We talked to three experts with
considerable knowledge and experience
in this area.
Gears with an asymmetric involute gear tooth form were analyzed to determine their bending and contact stresses
relative to symmetric involute gear tooth designs, which are representative of helicopter main-drive gears.
We talked energy efficiency with some
major players in the lubricants industry—
but with a focus on their products’
impact regarding energy efficiency of
gears and gearboxes in wind turbines.