Specialised Gear Rig for the Assessment of Loaded Transmission Error, Line of Action and Summarized Mesh Point

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Specialised Gear Rig for the Assessment of Loaded Transmission Error, Line of Action and Summarized Mesh Point

Surányi, Marcell / Leighton, Michael

Within gear pair development, the simulation of loaded transmission error, line of action and summarized mesh point are crucial information in design optimization as well as reliability, NVH and efficiency prediction. These properties and variables are difficult to evaluate and are usually only assessed through proxy-variables such as unloaded transmission error or contact pattern assessment. Alternatively, large design loops can be generated when prototypes are produced to directly assess the results of reliability, NVH and efficiency and simulation models updated to the results, but not directly calibrated.This work will showcase an advanced test facility with the unique capabilities to evaluate all gear contact types (including hypoid, beveloid, cylindrical and spiral) under loaded conditions while assessing position and force data that can be used to validate simulation models directly and enhance design development.Results will be shown for the assessment of hypoid gear fatigue life while also showing the effect of manufacturing tolerances on performance and the evolution of these critical variables throughout the life as they vary with run-in and gradual flank wear.