Aero-engine high-altitude simulation test bed regulating valve automatic model selection method

Abstract

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.

Description

technical field [0001] The invention relates to the field of aero-engines, in particular to an automatic type selection method for a control valve of an aero-engine high-altitude simulation test bench. Background technique [0002] As the front-end adjustment device of the air working environment simulation system of the aero-engine high-altitude simulation test bench, the control valve not only directly determines the operation safety of the engine and high-altitude test equipment, but also indirectly affects the development and test progress of the aero-engine. The importance of this device The role is self-evident. The same high-altitude test bench often has to adapt to many different test objects and many complex test subjects, and different test subjects need to simulate the working environment in terms of air flow, pressure, and temperature indicators. Harsh features. It is not only required that the adjustment ability of the control valve must be able to meet the ne...

AI Technical Summary

Problems solved by technology

Each test bench requires a comprehensive selection and analysis of the control valve, which requires a huge workload. If the current manual selection method is completely relied on, it may cause delays in progress, calculation errors, and occupation of human resources.

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