A new measuring method for friction factor by using ring with inner boss compression test

作者：Hu, Chengliang; Yin, Qiang; Zhao, Zhen^*; Ou, Hengan

来源：International Journal of Mechanical Sciences, 2017, 123: 133-140.

DOI：10.1016/j.ijmecsci.2017.01.042

• Friction factor
• Ring compression test
• Ring compression test with inner boss
• Calibration curves

To overcome the disadvantage of the bulging effect due to non-uniform deformation in dimension measurement of the conventional ring compression test (RCT), a new measuring method for the friction factor called ring compression test with inner boss (RCT-IB) was proposed. The compression behavior of the ring with an inner boss was investigated and results showed that the change of inner boss was sensitive to friction. The non-concave profile of inner boss allows the dimensional changes to be easily and precisely measured. The calibration curves of RCT-IB were constructed and compared with those of RCT showing similar level of sensitivities at most friction conditions. The RCT-IB method was successfully used to measure the friction factors under four different lubricating conditions.

• 出版日期2017-4
• 单位上海交通大学