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Estimation of Service Lives and Operating Temperature Ranges of High-Temperature Lubricating Oils Using Thermal Analysis
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作者 Fumihiko Yokoyama 《Journal of Physical Science and Application》 2014年第8期516-523,共8页
Development of gas turbine oils that can be used in higher temperature conditions remains the greatest technological challenge. Though the maximum operating temperature of conventional lubricating oils is generally se... Development of gas turbine oils that can be used in higher temperature conditions remains the greatest technological challenge. Though the maximum operating temperature of conventional lubricating oils is generally set around 100 ℃, or 140 ℃ for scavenged oils, it is predicted that the future will require oils to function at 200 ℃ or above. To find a clue to developing oils that can be used at higher temperatures, this study attempted to estimate service lives and operating temperature ranges of certain oils, including oils conforming to MIL-PRF-23699, which are deemed promising candidates for high-temperature applications, by analyzing their reaction rates of degradation and degeneration by oxidation. Among a number of methods used in the analyses of reaction rates, this study chose thermo-gravimetry (TG), with which estimations can be made relatively easily. 展开更多
关键词 Gas turbine oil life high temperature.
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基于深度传感器骨骼追踪的快速人体测量方法 被引量:8
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作者 欧攀 吴帅 周锴 《激光与光电子学进展》 CSCD 北大核心 2017年第12期223-230,共8页
基于深度传感器骨骼追踪提出了一种新的快速人体测量方法。通过深度传感器获取骨骼关节信息和人体深度数据,完成了人体特征尺寸中部分长度和围度的测量。实验结果表明,该方法能在短时间内获得较准确的结果,能用低成本设备在狭小场地完... 基于深度传感器骨骼追踪提出了一种新的快速人体测量方法。通过深度传感器获取骨骼关节信息和人体深度数据,完成了人体特征尺寸中部分长度和围度的测量。实验结果表明,该方法能在短时间内获得较准确的结果,能用低成本设备在狭小场地完成部分人体特征尺寸的获取。 展开更多
关键词 测量 人体测量 传感器 骨骼追踪 特征尺寸 围度估计
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