Experimental and Numerical Investigation of Helical Gear Transmission Error under Gear Misalignments

摘要

The reliability and NVH performance of gear transmission systems have increased thanks to accurate and robust modeling techniques during the design stage coupled with experimental campaigns. In the numerical model, it is essential to include the influence of gear manufacturing and assembly errors to better predict the Transmission Error (TE), which is a good indicator for drivetrain vibration levels. To capture the gear misalignment induced modulation of TE, which commonly occurs when general-purpose clamping devices are used to mount gears to shafts, a multibody simulation with an advanced gear contact solver has been conducted and compared with test results. This numerical model was also extended to adopt various combinations of gear misalignment to examine the influence. The level of severity for this modulation and the peak-to-peak amplitude of TE varied with the types of gear misalignment combinations.