1. Date of download: 10/14/2017
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From: Three-Dimensional Modeling and Simulation of a Falling Electronic Device
J. Comput. Nonlinear Dynam. 2006;2(1): doi: /
Figure Legend:
Numerical results for multiple collisions of the model cell phone with the ground. Initial contact angle θ=2deg, initial angular velocity ω=0, initial elevation of center of mass zc∣t=0=1, ground stiffness kG=108, ground damping coefficient cG=107, friction coefficient μk= (a) Normal impact contact force as a function of time; (b) total energy, kinetic energy, and potential energy as a function of time.