TY - JOUR
T1 - A novel multiple blade ultrasonic cutting device
AU - Cardoni, Andrea
AU - Lucas, Margaret
AU - Cartmell, Matthew
AU - Lim, Fannon
N1 - cited By 15
PY - 2004/4/30
Y1 - 2004/4/30
N2 - In ultrasonic devices consisting of serially coupled tuned components, components whose tuned length dimension is large compared to other dimensions, or components with profiles designed for high gain, the response of the device during operation is often characterised by modal interactions, and especially the excitation of combination resonances. The effects on ultrasonic devices are high noise levels, component failures and poor operating performance. In this paper, energy exchanges between modes are characterised to illustrate the adverse effects of combination resonances. Design solutions are proposed to eliminate these effects which concentrate on reducing the number of modes. In particular, a novel half-wavelength three-blade cutting system tuned to the first longitudinal mode has been designed by finite element modelling. An experimental investigation demonstrates that the measured response does not show evidence of modal interactions.
AB - In ultrasonic devices consisting of serially coupled tuned components, components whose tuned length dimension is large compared to other dimensions, or components with profiles designed for high gain, the response of the device during operation is often characterised by modal interactions, and especially the excitation of combination resonances. The effects on ultrasonic devices are high noise levels, component failures and poor operating performance. In this paper, energy exchanges between modes are characterised to illustrate the adverse effects of combination resonances. Design solutions are proposed to eliminate these effects which concentrate on reducing the number of modes. In particular, a novel half-wavelength three-blade cutting system tuned to the first longitudinal mode has been designed by finite element modelling. An experimental investigation demonstrates that the measured response does not show evidence of modal interactions.
KW - high power ultrasonics
KW - cutting
KW - autoparametric systems
KW - combination resonances
UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-1642632826&partnerID=40&md5=bf9c086e493121aeacb62b3a69a0b619
UR - http://www.sciencedirect.com/science/article/pii/S0041624X04001143
U2 - 10.1016/j.ultras.2004.02.004
DO - 10.1016/j.ultras.2004.02.004
M3 - Article
SN - 0041-624X
VL - 42
SP - 69
EP - 74
JO - Ultrasonics
JF - Ultrasonics
IS - 1-9
ER -