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Experimental Evaluation of Transmission Loss-of-Lubrication Technologies

机译：传输润滑技术的实验评价

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A Joint Aircraft Survivability Program (JASP) project was awarded in 2014 in order to accelerate the research and development on military helicopter transmission loss of lubrication survivability. This JASP project, "Helicopter Transmission Loss-of-Lubrication" was a collaboration between the US Army, US Navy, and NASA and completed in 2018. The approach for the effort was to first screen emerging technologies using coupon-level methods, then test those showing the most promise at the component level, and finally to downselect and evaluate these technologies at the system level. Several concepts to reduce heat generation, increase heat rejection, increase material tolerance to higher temperatures, and increase material resistance to damage were evaluated for this effort. Included in this evaluation were: a ceramic material for bearings, four different gear steels, various levels of gear surface roughness, six gear coatings, five lubricant and lubricant additive variations, and gearbox noble gas injection. After gear testing at the component level, isotropic superfinishing and ionic liquid lubricant additive were down selected as the two most suitable technologies for the system level testing. These technologies underwent loss of lubrication testing to failure in an intermediate gearbox from a standard configuration medium lift helicopter. A baseline loss of lubrication test, without these technologies, was also performed for comparison.
机译：一个联合飞机生存计划（JASP）项目，以加快润滑生存的军用直升机传输损耗的研究和开发授予在2014年。这JASP项目，“直升机传输失润滑”是美国陆军，美国海军和NASA之间的合作，并在2018年建成使用优惠券一级方法的努力的方法是第一个画面的新兴技术，然后进行测试那些显示出最有希望在组件级，最后到downselect和评估这些技术在系统级。几个概念以减少热量的产生，提高散热，增加材料耐受更高的温度，并增加损坏材料性这一努力进行了评价。包含在该评价中分别为：轴承的陶瓷材料，四种不同的齿轮钢，各种级别的齿轮的表面粗糙度，六个齿轮涂层，五度润滑剂和润滑剂添加剂的变化，和变速箱惰性气体喷射的。在组件级别齿轮检测，各向同性超精加工和离子液体润滑剂添加剂后，向下选择为用于系统级测试的两个最合适的技术。这些技术进行了润滑的测试失败的损失在中间齿轮箱从一个标准配置介质运输直升机。润滑试验的基线损失，没有这些技术，为了进行比较，还进行。

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