Originally Posted By: paul

your diagram should look more like a big "M" instead of
a mountain.


Sink in the middle?? There's no joint that would allow that. Or do you mean the blocks tilt? I assumed the blocks were prevented from tilting. If they can then it's unstable because the springs will just pop them out of straightness as soon as any load is applied.

Quote:

the 4000N is zero at 1 second , you must have the program
wrong somewhere.


Not at all. 1 second is where the springs are the most compressed. Obviously they have quite a lot of force on them at that time.

But anyway, that simulation was a bit of a side-track. It won't prove anything because nobody's going to go through all the code checking it.

We should focus on the static analysis since we still disagree even on that.