For the kinematic/static analysis you could model the fixture in your CAD software for the desired displacement. For the stiffness you will need to make some assumptions or measurements. Iím guessing that if you have FEA software and apply about 3-5 hours of effort on an existing fixture you will have an analysis that might be close to actuals.
For simplicity, you might consider a pneumatic cylinder design approach. You will be able to achieve a known force at an unknown displacement by controlling the applied psi to the cylinder and mechanism.
Simplicity is your friend.
Last edited by Kelly Bramble; 08-19-2015 at 04:10 PM.
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