Haha I might have got a bit carried away here, but I made a computer simulation. I had to adjust the spring constants to get approximately 2s turnaround time.



Here's the reaction force measured at the point shown on the diagram. It's the same as on the opposite side. All other vertical reaction forces are zero. The horizontal reaction forces at the ends of the springs depend on the angle on the diagonal members, but they came out at an average of 1500N each for the geometry shown. That kind of makes sense because they're a bit steeper than 45deg. I suppose at 45deg, there'd be 2000N on each spring.




The model assumes small displacements for everything, so it might be a bit inaccurate. However the larger you make the real thing, the closer it'll approximate the model.

Last edited by kallog; 07/14/10 08:41 PM.