000 03613nam a22006135i 4500
001 978-3-319-53408-4
003 DE-He213
005 20220801221113.0
007 cr nn 008mamaa
008 170221s2017 sz | s |||| 0|eng d
020 _a9783319534084
_9978-3-319-53408-4
024 7 _a10.1007/978-3-319-53408-4
_2doi
050 4 _aTA365-367.5
072 7 _aTTA
_2bicssc
072 7 _aTEC001000
_2bisacsh
072 7 _aTTA
_2thema
082 0 4 _a620.2
_223
100 1 _aSchirru, Michele.
_eauthor.
_4aut
_4http://id.loc.gov/vocabulary/relators/aut
_954141
245 1 0 _aDevelopment of an Ultrasonic Sensing Technique to Measure Lubricant Viscosity in Engine Journal Bearing In-Situ
_h[electronic resource] /
_cby Michele Schirru.
250 _a1st ed. 2017.
264 1 _aCham :
_bSpringer International Publishing :
_bImprint: Springer,
_c2017.
300 _aXVI, 167 p. 155 illus., 80 illus. in color.
_bonline resource.
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
347 _atext file
_bPDF
_2rda
490 1 _aSpringer Theses, Recognizing Outstanding Ph.D. Research,
_x2190-5061
505 0 _aIntroduction -- Background on Viscosity and Lubrication -- Background on Ultrasound -- Literature review -- A Novel Ultrasonic Model for Non-Newtonian Fluids -- Viscosity Measurement at an Aluminium-Oil Boundary -- The Matching Layer Method -- Viscosity Measurement in a Journal Bearing -- Conclusions.
520 _aThis thesis presents a novel ultrasonic instrument for non-invasive and in-situ characterization of journal bearing lubricant viscosity. In particular, the application to journal bearings is described by non-invasively measuring the viscosity and localized power losses throughout operation. This ultrasonic viscometer is based on the reflection of polarized shear waves from a thin resonating coating layer to increase the measurement sensitivity, in comparison to conventional ultrasonic methods. This instrument allows for a full engine oil viscoelastic characterization in-situ. The book investigates the effects of temperature, pressure and shear rate, and describes in detail the ultrasonic setup and method. Further, it demonstrates that the same technique can be applied similarly to monitor the lubrication of other engine components. As such, it offers a unique instrument that can drive the research of oil formulations to improve engine performance and fulfill the requirements of international fuel economy regulations. .
650 0 _aAcoustical engineering.
_99499
650 0 _aCoatings.
_96797
650 0 _aTribology.
_94149
650 0 _aCorrosion and anti-corrosives.
_96457
650 0 _aAutomotive engineering.
_954142
650 0 _aMaterials—Analysis.
_954143
650 1 4 _aEngineering Acoustics.
_931982
650 2 4 _aCoatings.
_96797
650 2 4 _aTribology.
_94149
650 2 4 _aCorrosion.
_916286
650 2 4 _aAutomotive Engineering.
_954144
650 2 4 _aCharacterization and Analytical Technique.
_954145
710 2 _aSpringerLink (Online service)
_954146
773 0 _tSpringer Nature eBook
776 0 8 _iPrinted edition:
_z9783319534077
776 0 8 _iPrinted edition:
_z9783319534091
776 0 8 _iPrinted edition:
_z9783319851457
830 0 _aSpringer Theses, Recognizing Outstanding Ph.D. Research,
_x2190-5061
_954147
856 4 0 _uhttps://doi.org/10.1007/978-3-319-53408-4
912 _aZDB-2-ENG
912 _aZDB-2-SXE
942 _cEBK
999 _c79296
_d79296