TY - CONF
T1 - Dynamic Load Analysis of Motion Converter Ball Bearings in a Pericyclic Transmission
AU - Weinzapfel, Nick
AU - Bolander, Nathan
AU - Mathur, Tanmay
AU - DeSmidt, Hans
AU - Smith, Edward
N1 - Funding Information:
The authors would like to thank Maplesoft, a division of Waterloo Maple, Inc. for their support in the development of the custom Modelica library of drivetrain components. The authors would also like to thank Robert Bill (Penn State University) and Mark Stevens (NASA GRC) for their many contributions to pericyclic drive research and development.
Publisher Copyright:
Copyright © 2022 by the Vertical Flight Society. All rights reserved
PY - 2022
Y1 - 2022
N2 - Performance of ball bearings in the motion converter subassembly of an internally driven, single-speed, torque-split, twin configuration pericyclic transmission prototype is evaluated to extend the analytical knowledge base on this innovative transmission concept. A dynamic model of the transmission is developed with high-fidelity models of the installed rolling element bearings to determine their reactions. Attention is focused on the pair of ball bearings supporting the motion converter subassembly which are subjected to a complex combination of loads, including radial and axial forces, moments, carrier motion, and possibly internal preload. Then the influence of internal axial clearance and preload on the behavior of the rolling elements is analyzed with a fully dynamic ball bearing model. Provisions to consider the carrier motion and a robust integration algorithm for component orientations are presented. Finally, a microstructure-based fatigue life simulation of the critical bearing component is performed to demonstrate the effect of clearance/preload on bearing reliability.
AB - Performance of ball bearings in the motion converter subassembly of an internally driven, single-speed, torque-split, twin configuration pericyclic transmission prototype is evaluated to extend the analytical knowledge base on this innovative transmission concept. A dynamic model of the transmission is developed with high-fidelity models of the installed rolling element bearings to determine their reactions. Attention is focused on the pair of ball bearings supporting the motion converter subassembly which are subjected to a complex combination of loads, including radial and axial forces, moments, carrier motion, and possibly internal preload. Then the influence of internal axial clearance and preload on the behavior of the rolling elements is analyzed with a fully dynamic ball bearing model. Provisions to consider the carrier motion and a robust integration algorithm for component orientations are presented. Finally, a microstructure-based fatigue life simulation of the critical bearing component is performed to demonstrate the effect of clearance/preload on bearing reliability.
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M3 - Paper
AN - SCOPUS:85135045222
T2 - 78th Vertical Flight Society Annual Forum and Technology Display, FORUM 2022
Y2 - 10 May 2022 through 12 May 2022
ER -