Development of an Ultrasonic Sensing Technique to Measure - download pdf or read online

By Michele Schirru

This thesis provides a singular ultrasonic software for non-invasive and in-situ characterization of magazine bearing lubricant viscosity. specifically, the applying to magazine bearings is defined via non-invasively measuring the viscosity and localized energy losses all through operation. 
This ultrasonic viscometer relies at the mirrored image of polarized shear waves from a skinny resonating coating layer to extend the size sensitivity, compared to traditional ultrasonic tools. This software makes it possible for a whole engine oil viscoelastic characterization in-situ. 
The publication investigates the consequences of temperature, strain and shear cost, and describes intimately the ultrasonic setup and strategy. additional, it demonstrates that a similar process could be utilized equally to observe the lubrication of alternative engine elements. As such, it bargains a special software which could force the study of oil formulations to enhance engine functionality and satisfy the necessities of overseas gas economic system regulations. 

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Development of an Ultrasonic Sensing Technique to Measure Lubricant Viscosity in Engine Journal Bearing In-Situ (Springer Theses) by Michele Schirru


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