Abstract
A novel dynamic model is proposed for a space shaft, which is used to analyze the dynamical processes of the cage during movement. The results achieved from variance analysis reveal that the ranges between guide and pocket clearances jointly influence the abnormal wear of the cage. From dynamic simulations and theoretic prediction, optimal ranges of guide distance and pocket clearance very from 365 to 375 µm, and 445 and 460 µm, respectively. The experimental results are in good agreement with those of theoretical and simulated outcomes, making abnormal wear of the cage reduce from 41.3% to 10%. These findings provide new insights to design and manufacture a high-performance space shaft cage to avoid abnormal wear worked at low temperature environment.
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