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Title: Determination of the dynamical behaviour of biological materials during impact using a pendulum device
Authors: Van Zeebroeck, Michael ×
Tijskens, Engelbert
Van Liedekerke, Paul
Deli, Vassiliki
De Baerdemaeker, Josse
Ramon, Herman #
Issue Date: Sep-2003
Publisher: Academic press ltd elsevier science ltd
Series Title: Journal of sound and vibration vol:266 issue:3 pages:465-480
Abstract: A pendulum device has been developed to measure contact force, displacement and displacement rate of an impactor during its impact on the sample. Displacement, classically measured by double integration of an accelerometer, was determined in an alternative way using a more accurate incremental optical encoder. The parameters of the Kuwabara-Kono contact force model for impact of spheres have been estimated using an optimization method, taking the experimentally measured displacement, displacement rate and contact force into account. The accuracy of the method was verified using a rubber ball. Contact force parameters for the Kuwabara-Kono model have been estimated with success for three biological materials, i.e., apples, tomatoes and potatoes. The variability in the parameter estimations for the biological materials was quite high and can be explained by geometric differences (radius of curvature) and by biological variation of mechanical tissue properties. (C) 2003 Elsevier Ltd. All rights reserved.
ISSN: 0022-460X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Mechatronics, Biostatistics and Sensors (MeBioS)
× corresponding author
# (joint) last author

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