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TECHNICAL PAPERS

Snake Skeleton Graph: A New Method for Analyzing Signals That Contain Spatial Information

[+] Author and Article Information
Ruxu Du, W. Z. Guo

Department of Automation and Computer Aided Engineering, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, China

Diana Xu, Evangelos Liasi

Press-Room Technical Support, Stamping Business Unit, Vehicle Operation, Ford Motor Company, Dearborn, MI 48121

J. Dyn. Sys., Meas., Control 125(3), 294-302 (Sep 18, 2003) (9 pages) doi:10.1115/1.1590683 History: Received July 06, 2002; Revised March 01, 2003; Online September 18, 2003
Copyright © 2003 by ASME
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References

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Figures

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Illustration of a foot walking on a bar and the force is sensed by two sensors
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The two force signals from the simulation
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The formation of a snake skeleton graph
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The snake skeleton graph for two sensor signals
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Another form of the snake skeleton graph
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Illustration of a foot walking on a plate with four sensors
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The forces as the foot walking on the plate: (a) in x direction; (b) in y direction; (c) in z direction
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Use Bèzier surface to describe a section of the four-sensor snake skeleton graph
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The four-sensor snake skeleton graph of the foot walking example
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The change of normal vector as a function of time in the foot walking example
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Another form of the four sensor snake skeleton graph
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Case 1: the tonnage signal resulting from normal stamping operation
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Case 1: the corresponding snake skeleton graph
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Case 1: the corresponding normal vector graph
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Case 2: the tonnage signal resulting from abnormal stamping
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Case 2: the corresponding four sensor snake skeleton graph
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Case 2: the corresponding normal vector graph
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The projection of the normal vectors in x direction
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The projection of the normal vector in y direction

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