The invention provides an aero-engine high-altitude
simulation test
bed regulating valve automatic
model selection method. The method comprises the steps of acquiring the limit boundary of an air inlet
system and an exhaust
system simulated in the air
working environment through analysis, obtaining the working boundary of each regulating valve on the pneumatic
branch, determining an optimal regulating valve specification according to the working boundary of each regulating valve on the pneumatic
branch, according to the working boundary of each regulating valve on the pneumatic
branch, on the basis of the industrial valve shell
strength design EN12516 in the EN standard series, inquiring and acquiring the suitable material and
temperature and pressure grade of the regulating valve, according to the
temperature and pressure grade and the optimal regulating valve specification, based on the industrial valve shell
strength design EN12516, quantitatively determining the calculation pressure Pc, the
stress factor S and the
corrosion resistance constant c, acquiring the minimum shell wall thickness emin, meeting the minimum strength reliability requirement of the regulating valve, of the regulating valve through calculation according to a minimum wall thickness calculation formula, and conducting
model selection on the regulating valve body
flange and the companion
flange.