Calculation of Dynamic Stresses in Flapper Valves With Flexible Backers
نویسندگان
چکیده
A numerical method is presented for computing the time varying stresses in compressor flapper valves that have a flexible backer or stop. Valve and backer geometry are described by finite element models as are commonly produced by commercial finite element software. Mass and stiffness matrices are assembled into a second order system which is then solved by a direct numerical integration in a time step fashion along with mechanism and thermodynamic models . Constraint relationships are allowed to change as the valve contacts different points on the backer and valve seat.
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تاریخ انتشار 2014