inc new york ny 1959 pg 294 ex 72 static analysis

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Unformatted text preview: s, Numerical Optimization Techniques for Engineering Design with Applications, McGraw-Hill Book Co., Inc., New York, NY, 1984, pp. 72-73, ex. 3-1. Analysis Type(s): Nonlinear Transient Dynamic Analysis (ANTYPE = 4) Element Type(s): Spring-Damper Elements (COMBIN14) Combination Elements (COMBIN40) Input Listing: vm9.dat Test Case A two-spring system is subjected to a force F as shown below. Determine the strain energy of the system and the displacements δx and δy. Figure 9.1 Unequal Stiffness Springs Problem Sketch £ ' 0 & 3#2 0 δ ¡ δ 67) ( & (1' ) ( % 452 ¢ !   $¦#" ¤ % !  § ¨©¦§¥ ¤ Geometric Properties Loading = 10 cm k1 = 8 N/cm k2 = 1 N/cm m=1 Analysis Assumptions and Modeling Notes The solution to this problem is best obtained by adding mass and using the "slow dynamics" technique with approximately critical damping. Combination elements (COMBIN40) are used to provide damping in the X and Y directions. Approximate damping coefficients cx and cy, in the x and y directions respectively, are determined from ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . ©...
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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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