Risk of the Lift?

[Raul]

Originally Posted by RaMoore

Could you be more specific with what teams can expect then for lifting? 1/2 of 188lbs? 1/4 of 188 lbs?

Just some ball park estimate because I think alot of teams did the math and came up with 188lbs and rejoiced (we did). If this isn't what they should expect then I think i'ts important you get information out there.

Our experiments showed that a typical cylinder under load could only "Move" between 80 to 85% of it theoretical maximum force. This is probably due to frictional forces in the cylinder and the rest of the mechanisms it was driving. There is also the affect of the transmission of pneumatic energy through the small hoses and valves.

This is no different than motor driven systems. Think of how the efficiency of a gear box reduces the actual transmitted power in those systems. We have learned to not expect 100% of the motor's torque to drive the final system. Another way to think of it is that we do not expect a motor to drive a system at its stall torque - it can hold that much torque - thus the term stall. It cannot drive at that torque. The analogy is that a pneumatic cylinder "stalls" at the rated max force. But it cannot move anything with that much force. And of course the inefficiencies reduce what force it can move.