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Transient Dynamic Analysis. Jake Blanchard Spring 2008. Introduction. ANSYS can solve full dynamic problems (with inertial and damping effects included) Examples include: Vibration problems Waves Collisions Etc. Time. Key Elements to Analysis. Be sure to define density
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Transient Dynamic Analysis Jake Blanchard Spring 2008
Introduction • ANSYS can solve full dynamic problems (with inertial and damping effects included) • Examples include: • Vibration problems • Waves • Collisions • Etc. • Time
Key Elements to Analysis • Be sure to define density • Set up analysis options: • Analysis type is transient (start with “full” method for solution) • Time step must be chosen in context of period of natural frequencies of structure (shoot for about 20 steps within a single oscillation)
Example • Cantilever beam • Cross section is rectangular, 2.5 cm tall and 1 cm wide • Beam length is 2 m • 100 N load applied at end of beam for 40 ms • E=200 GPa • =0.3 • =8000 kg/m3 • Natural frequency of fundamental mode is