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Unread 23-11-2016, 20:58
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Sam Skoglund Sam Skoglund is offline
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Pneumatics Math Help

I am trying to design a joint that will actuate from 90 to 180 degrees with a pneumatic cylinder. Here is a link to what I have designed so far.

I am now trying to figure out the forces involved in the system in order to choose the right bore size for the application. This is simply an offseason design concept, so there are no force requirements for this specific design, however I would like to know how to calculate the forces for future use of the design. I understand how to calculate the force exerted by the cylinder from the bore size, that is not what I am confused about. I am wondering how to calculate the force exerted perpendicular to the arm throughout the different angles of motion, at different distances from the hinge. This might be very simple but I am getting confused because of the linkage connecting the cylinder to the actuated arm.
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