Effect of Assembly Errors in Back-to-Back Gear Efficiency Testing - December 2015
M. Andersson, M. Sosa, S. Sjöberg and U. Olofsson
The article "Effect of Assembly Errors in Back-to-Back Gear Efficiency Testing" appeared in the December 2015 issue of Power Transmission Engineering.
As gear efficiency is improved in small steps, it is important to be able to distinguish actual improvements from scatter that can occur while testing. An FZG back-to-back gear test rig was used to investigate how the assembly and re-assembly of the same test setup affects the measurements. A spread in torque loss between one assembly and another of the same test setup were observed. Rig conditions also affected the spread in input torque. With knowledge of how the spread in torque loss varies due to assembly, test results could be distinguished between changes due to assembly and actual differences between tests.
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