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Identification and Correction of Damaging Resonances in Gear Drives - August/September 1984

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Archive > 1984 > August/September 1984 > Identification and Correction of Damaging Resonances in Gear Drives

The article "Identification and Correction of Damaging Resonances in Gear Drives" appeared in the August/September 1984 issue of Gear Technology.

Summary
As a result of extensive research into the vibration characteristics of gear drives, a systematic approach has evolved, by which damaging resonances can be eliminated. The method combines finite element techniques with experimental signature and modal analyses. Implementation of the bulk of the method can be carried out early in the design stage. A step-by-step description of the approach, as it was applied to an existing accessory drive, is given in the text. It is shown how premature bearing failures were eliminated by detuning the torsional oscillations of a gearshaft. A dramatic reduction in vibration levels was achieved as a result of detuning the problem gear. The proposed approach can be extended to other types of rotating machines.

Keywords
gear noise, vibration, FEA

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