薄膜センサによる2円筒転がり接触圧力計測の研究(機械要素,潤滑,設計,生産加工,生産システムなど)

概要

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In order to investigate the durability of sliding or rolling parts of machinery or to apply appropriate heat and surface treatment conditions to such parts, it is important to know the oil-film pressure and to evaluate the stress distribution of the parts. Regarding the contact pressure between the gear teeth flanks and cam followers, the maximum pressure and stress distribution can be calculated theoretically. However, the real contact pressure does not always agree with calculated ones due to the different configuration of contact surface, misalignment and etc. In this study, the authors developed a thin film pressure sensor with a thickness of 4.2μm, and the high oil-film pressure of the order of GPa under the line contact was measured. For the experiment, a test rig was developed with two-rollers to which a thin-film pressure sensor for the pressure measurement and additionally two-thin-film pressure sensors for checking the contact condition were deposited. The measured maximum pressure agreed comparatively well with Hertzian maximum pressure. Except the pressure spike, the measured pressure distribution also agreed rather well with the EHL calculation.
2010-01-25