Design and development of a novel test method to measure the slipper / swashplate interface fluid film in a positive displacement machine
Design and development of a novel test method to measure the slipper / swashplate interface fluid film in a positive displacement machine
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发表时间：
2014
影响因子：
1.6
通讯作者：
N. A. Spencer
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作者：
N. A. Spencer
放大图片作者：Natalie A.法医，普渡大学，2014年8月。容积式机器滑靴/斜盘界面液膜测量新方法的设计与开发。主要教授：Monika Ivantysynova博士，机械工程学院。虽然已经开发出了容积式机器中滑靴/斜盘润滑界面之间的流体膜行为的鲁棒模型，但是直到现在还没有实现在相对不变的轴向活塞单元内以高度精确的程度测量该相同的流体膜厚度。通过测量130 cc轴向活塞泵中滑靴和斜盘之间的液膜厚度，创建了一种测试方法来缩小可用数据中的这一差距。在运行过程中，对滑靴和斜盘之间的差距高度在不同轴角位置的精确了解，为深入了解机器性能提供了重要信息。将详细讨论这种新的测量方法的设计，验证，创建和实施。此外，还将提供稳态条件下各种操作设置的样本结果，以提供设计方法和记录数据的置信度。最后，还提出了一个初步的比较试验台的结果和精确的滑块/斜盘接口预测模型以前开发的马哈流体动力中心。
Spencer, Natalie A. M.S.M.E., Purdue University, August 2014. Design and Development of a Novel Test Method to Measure the Slipper / Swashplate Interface Fluid Film in a Positive Displacement Machine. Major Professor: Dr. Monika Ivantysynova, School of Mechanical Engineering. Although robust models of fluid film behavior between the slipper / swashplate lubricating interface in positive displacement machines have been developed, measuring this same fluid film thickness to a highly accurate degree inside a relatively unaltered axial piston unit has never been accomplished until now. A test method was created to close this gap in available data by measuring fluid film thickness between the slipper and swashplate in a 130cc axial piston pump. Precise knowledge of the gap height between the slipper and swashplate at various shaft angle locations during operation provides critical insight into machine behavior. The design, validation, creation, and implementation of this novel measurement method will be discussed in detail. Additionally, sample results from various operating settings taken at steady state conditions will be presented to provide confidence in the design methodology and recorded data. Finally, a preliminary comparison is also presented between test rig results and a precise slipper / swashplate interface prediction model previously developed at the Maha Fluid Power Center.