Dynamic Balls

grabcad

Original project made as a Dynamic Simulation with Autodesk Inventor 2014. The clip is made with the Inventor Studio module by using the data from the Dynamic Simulation module. You can see how two balls were launched by gravitation through a tube in a funnel and what happens with them. The same clip, but saved directly with Dynamic Simulation, can be watched here: https://youtu.be/jeVNlseOz_c. The difference is that this one includes the traces (but has far lower resolution). Look carefully toward the end to see that the second ball (red) enter in collision with the first (green). The second one transfers some energy to the first, so the first goes up to the funnel wall, and the second goes out, gaining the first place. Just like in the real life... if you understand what I mean... The last thing you will remark at the end, probably; the projection is not orthogonal, but perspective, so the balls are vanishing like Felix Baumgartner jumping from stratosphere! As always in my projects, you can find .iam and .ipt files. Using Inventor you can enter the Environment / Dynamic simulation to study how the simulation was settled. If you right click the Force joint „3D Contact:4 (Ball:1, Funnel:1)” you shall see that Stiffness=500 N/mm, Damping=0.8 N s/mm and the Friction=0.1. This settings are not the default ones, because the default is an extreme wonderful situation - no friction, no troubles ;). If you reset them to default, you will see that the balls will hop out of funnel... Something special with this project was that I transferred the dynamics from Dynamic Simulation to Inventor Studio. Now, the data for movie are embedded in the .iam file, so it becomes abnormally big (22.3 MB). Enjoy!