Dynamic Load Analysis of Motion Converter Ball Bearings in a Pericyclic Transmission

IF 1.4 4区工程技术 Q2 ENGINEERING, AEROSPACE

Journal of the American Helicopter Society Pub Date : 2023-10-01 DOI:10.4050/jahs.68.042005

Nick J. Weinzapfel, Nathan W. Bolander, Tanmay D. Mathur, Hans DeSmidt, Edward C. Smith

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Abstract

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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周圈传动运动变换器球轴承的动载荷分析

评估了一种内驱动、单速、扭矩分裂、双配置周圈传动原型的运动变换器组件中的球轴承的性能，以扩展这一创新传动概念的分析知识基础。利用安装的滚动轴承的高保真模型建立了传动的动力学模型，以确定它们的反应。注意力集中在支持运动转换器组件的一对球轴承上，它们受到复杂的载荷组合，包括径向和轴向力，力矩，载体运动，以及可能的内部预载荷。采用全动态球轴承模型，分析了轴向内间隙和预紧力对滚动体性能的影响。提出了考虑载体运动的规定和一种鲁棒的分量方向积分算法。最后，对轴承关键部件进行了基于微观结构的疲劳寿命模拟，以验证间隙/预紧力对轴承可靠性的影响。

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来源期刊

Journal of the American Helicopter Society 工程技术-工程：宇航

CiteScore

4.10

自引率

33.30%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of the American Helicopter Society is a peer-reviewed technical journal published quarterly (January, April, July and October) by AHS — The Vertical Flight Society. It is the world''s only scientific journal dedicated to vertical flight technology and is available in print and online. The Journal publishes original technical papers dealing with theory and practice of vertical flight. The Journal seeks to foster the exchange of significant new ideas and information about helicopters and V/STOL aircraft. The scope of the Journal covers the full range of research, analysis, design, manufacturing, test, operations, and support. A constantly growing list of specialty areas is included within that scope. These range from the classical specialties like aerodynamic, dynamics and structures to more recent priorities such as acoustics, materials and signature reduction and to operational issues such as design criteria, safety and reliability. (Note: semi- and nontechnical articles of more general interest reporting current events or experiences should be sent to the VFS magazine