How to Design a 4 Bar Linkage Claw for Underwater Use?

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ezioldschool
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Hello All,

I am working on a final project for class, and I am trying to design a bar linkage claw design like the one I have attached. I have also attached my attempt to design the length, and where the base pins are supposed to go for the desired start and finish position, open and closed, of the claw. I want to make sure I am approaching this the right way. The claw will be holding a submarine. I have also attached my approach to calculating the dynamic forces that the links and pins of the claw will experience while traveling under water. I realize that I am missing key things like length and angles; this is just a start I want to make sure I am approaching it the right way. Any help or comments that might help me will be greatly appreciated. If there is literature that will help that would also be greatly appreciated.

Thank You
 

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  • 4 bar linkage claw.jpg
    4 bar linkage claw.jpg
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  • design attempt.jpg
    design attempt.jpg
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  • Force analysis.jpg
    Force analysis.jpg
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