journal article·2025-08-26Open access

An Ease-Off Based Tooth Contact Analysis Method for Measured Face Gear Flanks

Zhongwei Tang, Yuansheng Zhou, Jinyuan Tang

Applied Sciences· Volume 15· Issue 17

Abstract

To rapidly evaluate the meshing performance of manufactured face-gear drives, this study proposes an efficiency-optimized tooth contact analysis (TCA) method for measured gear flanks based on Ease-off surface. Initially, mathematical models of the pinion and face-gear tooth flanks are established. A TCA framework leveraging conjugate relationships and Ease-off surfaces is then developed. Subsequently, measured flank data are fitted into continuous error surfaces through Bicubic spline fitting, enabling full-tooth flank error mapping. These error distributions are integrated into the Ease-off surface model to simulate realistic meshing behavior, extracting critical performance metrics including contact paths and transmission errors. Validation through computational TCA, finite element analysis (FEA), and rolling tests confirm the method’s accuracy and computational efficiency.
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Research context

OpenAlex topics: Gear and Bearing Dynamics Analysis · Advanced machining processes and optimization · Tribology and Lubrication Engineering

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China

State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University, Changsha 410083, China

Funding

National Natural Science Foundation of China · Science and Technology Innovation Program of Hunan Province · Fundamental Research Funds for the Central Universities of Central South University · Central South University Innovation-Driven Research Program · The Industry University Research Cooperation Project of China Aviation Engine Group Co, Ltd

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