I'm designing a hinged cover for something right now that will use a pair of gas extension springs for assisted opening. I'm currently working to figure out how much force it will take to open the cover using different values of spring - it's available in 50, 100, 150, 200, etc., lb versions.
I've tried running simulations using a force applied to the moving end of the gas spring, and I've trued running simulations using a spring joint applied between the fixed and and the moving end of the gas spring, and I'm getting dramatically different results between the two. For instance, using a 200 lb force shows me that I need about 25 extra lbs of force applied to the handle of the cover to open it, where when I use that same 200 lbs on a spring joint, I need 50-75 lbs to keep the cover closed, because it will open on its own.
Which is the correct direction to go here?
Rusty
Solved! Go to Solution.
Solved by JDMather. Go to Solution.
Solved by JDMather. Go to Solution.
I will take their lab reports and write up a condensed report when I get a chance and attach here.
It is interesting enough that I will add this one to my book (if I ever get around to writing it).
JD -
Have you had a chance to review the student solutions any further? I'm still interested in hearing about what you found so interesting on this one ...
Rusty
Hello
Help yourself with a gas spring positioning software!
Vérinplus 3.10 pros available now on
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VérinPlus is a software for positioning gas or spring jacks.
Designed specifically for design offices, it calculates fixing points and
the effort required to maintain the door, while ensuring that deadlines are met.
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