EAN: 9783960670186

VIBRATION AND NOISE REDUCTION IN PLANETARY GEAR...

Gears are essential parts of many precision power transmitting machines such as automobiles.
The major functions of a gearbox are to transform speed and torque in a given ratio and to
change the axis of rotation. Planetary gears yield several advantages over conventional
parallel shaft gear systems: They produce high speed reductions in compact spaces  a greater
load sharing  a higher torque to weight ratio  diminished bearing loads  and reduced noise and
vibration. They are used in automobiles  helicopters  aircraft engines  heavy machinery  and a
variety of other applications. Despite their advantages  the noise induced by the vibration of
planetary gear systems remains a key concern. Planetary gears have received considerably less
research attention than single mesh gear pairs. There is a particular scarcity of analysis of
two planetary gear systems and their dynamic response. Hence  this book focuses on the study of
two PGTs with different phasing (angular positions) while every individual set remains
unchanged.

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