Dynamic Measurements of Gear Tooth Friction and Load


A program to experimentally and theoretically study fundamental mechanisms of gear dynamic behavior is being conducted at the NASA Lewis Research Center in support of a joint research program between NASA and the U.S. Army. This paper presents the results of dynamic tooth-fillet strain gage measurements from the NASA gear-noise rig, and it introduces a technique for using these measurements to separate the normal and tangential (friction) components of the load at the tooth contact.
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