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Twenty-three peer-reviewed papers cover:Problems of Bench TestingBench checks and attempt DevelopmentAnalysisModeling and Simulation
Read Online or Download Bench Testing of Industrial Fluid Lubrication and Wear Properties Used in Machinery Applications (ASTM Special Technical Publication, 1404) PDF
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Additional resources for Bench Testing of Industrial Fluid Lubrication and Wear Properties Used in Machinery Applications (ASTM Special Technical Publication, 1404)
Sample text
9 Materials for the actual test pieces must be similar to the actual machine. 9 To successfully evaluate the wear characteristics of hydraulic fluids, a wear test in a hydraulic pump must be conducted. The following test strategy was recommended for the use of laboratory wear testing machines: 1. Rank hydraulic fluids according to hydraulic pump tests. 2. Evaluate hydraulic fluids in a wear testing machine under a wide variety of conditions. Sliding pairs should be constructed of materials similar to those of the tribo-contact in the hydraulic pumps o f interest.
However, it isn't possible to assure hydrodynamic lubrication under all operating conditions. For example, start-up conditions, oscillating motion, etc. can all create contact speeds insufficient to support hydrodynamic lubrication. Thus, a hydraulic fluid must exhibit some high load (mixed EHD) anti-wear characteristics. 001; . . ! ZN= Cr P I I (LOAD) Figure 8 - Illustration of lubrication wear regimes using the Stribeck-Hersey curve. 2. Performance Map Characterization - It is possible to construct "performance maps" to identify EHD, mixed film and boundary lubrication properties of a hydraulic fluid [12].
For example, start-up conditions, oscillating motion, etc. can all create contact speeds insufficient to support hydrodynamic lubrication. Thus, a hydraulic fluid must exhibit some high load (mixed EHD) anti-wear characteristics. 001; . . ! ZN= Cr P I I (LOAD) Figure 8 - Illustration of lubrication wear regimes using the Stribeck-Hersey curve. 2. Performance Map Characterization - It is possible to construct "performance maps" to identify EHD, mixed film and boundary lubrication properties of a hydraulic fluid [12].