Vibration assisted machining: Modelling, simulation, optimization, control and applications [PDF]
, 2010 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University, 30/11/2010.Increasing demand for precision components made of hard and brittle materials such as glasses, steel alloys and advanced ceramics, is such that ...
Ibrahim, Rasidi
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Harmonic analysis of lossy piezoelectric composite transducers using the plane wave expansion method [PDF]
, 2008 Periodic composite ultrasonic transducers oer many advantages but the periodic pillar architecture can give rise to unwanted modes of vibration which interfere with the piston like motion of the fundamental thickness mode.
Hayward, Gordon +3 more
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Incorporation of viscoelastic loss into the plane wave expansion approach to modelling composite transducers [PDF]
, 2006 The plane wave expansion (PWE) method has been proposed as a theoretical model for periodic composite ultrasonic transducers. This paper extends previous work by importantly including viscoelastic loss in the material parameters.
Hayward, G. +3 more
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Ultrasonic sensing using Yb3+/Er3+-codoped distributed feedback fibre grating lasers. [PDF]
, 2005 Yb3+/Er3+-codoped distributed feedback (YbEr-DFB) fibre grating lasers have been investigated for the detection of ultrasonic Lamb waves generated in an aluminum plate. Two sensor configurations have been investigated. A path length imbalanced readout
Ye, Chen-Chun, Tatam, Ralph P.
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Journal of Magnesium and Alloys, 2021 The present work investigates the effect of ultrasonic power (%) and the time of ultrasonic vibration on the sintered density and ultimate compressive strength (UCS) of Mg15Nb3Zn1Ca fabricated using ultrasonic assisted conventional sintering (UACS).
Ajit Kumar, Pulak M Pandey
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New Damped-Jerk trajectory for vibration reduction [PDF]
, 2014 This paper derives a jerk-shaped profile to address the vibration reduction of underdamped flexible dynamics of motion system. The jerk-limited profile is a widespread smooth command pattern used by modern motion systems.
BEAREE, Richard
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A radial mode ultrasonic horn for the inactivation of Escherichia coli K12 [PDF]
, 2008 Tuned cylindrical radial mode ultrasonic horns offer advantages over ultrasonic probes in the design of flow-through devices for bacterial inactivation. This study presents a comparison of the effectiveness of a radial horn and probe in the inactivation ...
Lucas, M. +3 more
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Contact analysis and mathematical modeling of traveling wave ultrasonic motors [PDF]
, 2004 An analysis of the contact layer and a mathematical modeling of traveling wave ultrasonic motors (TWUM) are presented for the guidance of the design of contact layer and the analyses of the influence of the compressive force and contact layer on motor ...
Zhu, Meiling
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Experimentally valided approach for the simulation of the forging process using mechanical vibration [PDF]
, 2009 In this study, an experimental setup of a forging process has been designed which allows to apply vibrations to the lower die of amplitude ranging from 0 to 80 ?m at frequencies varying from 1 to 130Hz thanks to the use of a stack piezoelectric actuator ...
ABBA, Gabriel +3 more
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Research progress and prospects of ultrasonic vibration in coal rock fracturing
Meitan kexue jishuIn order to promote the technological development of ultrasonic vibration induced cracking of coal and rock masses, improving the efficiency of coalbed methane production and hard rock excavation in mines, it reviews the development history of ultrasonic
Xufeng WANG +6 more
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