Dr Shakes Illustrates basic concepts of modal analysis for structural systems
Download

Dr Shakes Ranking & Summary

Dr Shakes Tags

analyze analyzer structure analyze structure structure analysis shake structure

Dr Shakes Description

Illustrates basic concepts of modal analysis for structural systems Dr Shakes is a free and very simple program created to help illustrate many of the basic concepts underlying modal analysis for structural systems. Dr Shakes is intended to be used for instruction both in demonstration and hands-on contexts.Dr Shakes presents an animated display of a vibrating structure along with its associated modes and phases. By adjusting the sliders, one can alter the contribution of each mode to the overall motion, set the phase lag for each mode (e.g., to match initial conditions), and adjust the associated story mass and stiffnesses. One can also change the number of stories (degrees of freedom), adjust the animation speed, and set the displacement scale.Similarly, for the case of forced harmonic motion as shown in the screen shot below, Dr Shakes presents an animated display of the structure as it responds to ground motion. By moving the appropriate sliders, one can adjust the damping in each mode and adjust the associated story mass and stiffnesses. The amplitude and frequency of the ground motion can be set, as well. The forced vibration starts with at-rest initial conditions, so one view both transient and steady-state response.

Dr Shakes Related Software