Experimental Design of Friction and Wear under the High-Speed and High-Temperature Conditions Based on the Combinations of Virtuality and Reality

The material test of friction and wear under the high-speed and high-temperature conditions has some difficulties, such as long experimental period, high experimental complexity and security risks. In order to lower the risks, periods, and costs during operating, the testing device and corresponding virtual simulation system were developed. The testing device can be used to conduct the material experiments of tribology characteristics for bearings, gears, seals in aero-engines. The combinations of virtuality simulations and reality operations are helpful to promote the understand the knowledge of basic theory, operating steps, experimental processes, results presentations, etc. The exercises of high-speed and high-temperature tests can be carried out without the restrictions of time and space, and many students can conduct the tests of virtuality simulations at the same time. Then the offline actual operations were carried out after virtuality simulations, which can improve the realsenses of mechanical structure and operating process of the tribometer for the learners. The study performance of different learners were evaluated based on virtuality simulations, reality operations, and experiment reports by the ways of process assessment and outcome assessment.