Cross-head guide forces
Cross-head guide forces
(OP)
I'm trying to calculate the crosshead guide forces on a recip compressor but are struggling to find any literiture on it. Are there standard equations to calculate these forces?
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RE: Cross-head guide forces
Your piston load is simply piston area times pressure, call that force F. Your rod is pinned at each end and has some length (call it RL), and makes some angle depending on it's length and cranshaft dimensions. If your crank throw (half the stroke) is CT, you can derive the force perpendicular to the direction of piston motion from
Fr = F * CT / RL
Where F = Piston Area * Pressure
CT = 0.5 * stroke length
RL = distance from center of rod at crank to center of rod at wrist pin.
RE: Cross-head guide forces