338 article 53 mode frequency analysis antype 2

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Unformatted text preview: =0 Geometric Properties = 3 in δ = 0.002 in Loading ∆t = 170° - 70°F Results Comparison Target ANSYS Ratio Stressx , psi -13125 -13125 1.000 Stressy , lb -6125 -6122 0.999 ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–149 VM65: Transient Response of a Ball Impacting a Flexible Surface Overview Reference: W. T. Thomson, Vibration Theory and Applications, 2nd Printing, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1965, pg. 110, ex. 4.6-1. Analysis Type(s): Nonlinear Transient Dynamic Analysis (ANTYPE = 4) Element Type(s): Structural Mass Elements (MASS21) 2-D/3-D Node-to-Surface Contact Elements (CONTA175) Input Listing: vm65.dat Test Case A rigid ball of mass m is dropped through a height h onto a flexible surface of stiffness k. Determine the velocity, kinetic energy, and displacement y of the ball at impact and the maximum displacement of the ball. Figure 65.1 Ball Problem Sketch Material Properties m = 0.5 lb-sec2/in k = 1973.92 lb/in Geometric Propertie...
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This note was uploaded on 12/09/2010 for the course DEPARTMENT E301 taught by Professor Kulasinghe during the Spring '09 term at University of Peradeniya.

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