An engine case high temperature and high pressure test device

Abstract

The invention relates to the technical field of aircraft engine environment simulation, and especially relates to a high-temperature and high-voltage testing device for an engine case. The device comprises a supporting pedestal; an engine case installation frame which is used for fixedly installing the engine case at the top of the supporting pedestal; a pressurizing mechanism which is disposed in the engine case and is controlled to compress the engine case; a pressure sensor which is used for monitoring the pressure of air in a pressurizing capsule; a uniform heat layer, a heating layer and a thermal insulation layer, which are all disposed an inner ring surface of the engine case and the pressurizing capsule, wherein the heating layer is controlled to heat the engine case; and a temperature sensor which is used for monitoring the temperature of the engine case. Through the heating of the engine case and the synchronous applying of a force load, the device is closer to an actual working state of the engine case, can effectively check the thermal and mechanical properties of the engine case at the working state, is high in load simulation precision, and is high in engineering application value.

Description

technical field [0001] The invention relates to the technical field of aircraft engine environment simulation, in particular to a high-temperature and high-pressure test device for an engine casing. Background technique [0002] As an important part of the engine structure, the aero-engine casing has the following important functions on the engine: [0003] 1) Different casing sections are connected back and forth, and the inner wall surfaces together form a complete outer channel airflow wall surface. During operation, the inner wall surface is washed by high-temperature and high-speed airflow, and the shape needs to be maintained under high temperature and high pressure conditions to ensure that the engine gas flow field meets the design requirements; [0004] 2) As the main installation frame of the engine structure, a large number of openings and installation holes for installing casing accessories, installation joints and bleed air pipelines are reserved on the surface,...

AI Technical Summary

Problems solved by technology

This method can most realistically simulate the use state of the casing, but the heat capacity of the gas is low and the density is low, and a large amount of high-temperature air is required to heat the casing to the required temperature and pressure, which requires specially customized air compression, heating, and circulation equipment, and the cost is huge

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