Metronome (Reverted pendulum)

grabcad

Original project made with Autodesk Inventor 2014 as a Dynamic simulation, considering only the gravitation force and reaction from springs. The equilibrium position is vertical, when the two springs are equally compressed. Since the start is in sloped position (at 7°), the movement is inherent. The only friction added to this assembly is on the base bolt (µ=0,1 at R=2). Looking carefully to the trace, you will note that the amplitude is slightly reduced at the final - only because of this friction. As usual, you will find the .iam and .ipt fils so, if you work with Inventor, you can download them to enter Environments / Dynamic simulation and to change the settings as you wish. As a result, you can test how the mechanism really works. The animation is made with the Dynamic simulation module - the only way to present compressing of springs in real time. The spring animation cannot be passed to the Inventor studio module, like any other dynamic simulation. This is why you will find also the „Metronome (Reverted pendulum) with static springs.iam” file, based on the same components plus the springs. Here the springs are calculated with the Design acceleration module in each position, but they are static, non-compressible. This assembly was used to make the rendered images. Enjoy!