Bulk modulus of hydraulic oil represents the resistance of hydraulic oil to compression and is the reciprocal of compressibility. The bulk modulus is a basic thermodynamic property of hydraulic oil that has a very important influence on work efficiency and dynamic characteristics of hydraulic systems, especially for the hydraulic systems at ultra-high pressure or ultra-high temperature. In this study, a bulk modulus experimental equipment for hydraulic oil was designed and manufactured, two types of hydraulic oil were selected and its isothermal secant bulk modulus were measured at pressures to 140MPa and temperatures of 20~180°C. Compared the experimental results with the calculated results from the prediction equations of liquid bulk modulus that proposed by Klaus, Hayward, and Song, it is found that the experimental results are not completely identical with the calculated results.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:29304 |
| Date | January 2016 |
| Creators | Yang, Shudong, Tao, Aihua, Luo, Yulin, Zhang, Junxiang, Zhou, Peng, Zhou, Lin |
| Contributors | Dresdner Verein zur Förderung der Fluidtechnik e. V. |
| Publisher | Technische Universität Dresden |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | doc-type:conferenceObject, info:eu-repo/semantics/conferenceObject, doc-type:Text |
| Source | 10th International Fluid Power Conference (10. IFK) March 8 - 10, 2016, Vol. 1, pp. 193-204 |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | urn:nbn:de:bsz:14-qucosa-196933, qucosa:29237 |
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