A method of using the air intake system of an engine test bench

Abstract

The invention discloses an application method of an engine test-bed air intake system, and the method comprises the following steps: S100), generator air intake total pressure and oxygen content adjustment; S200), generator air intake general temperature adjustment; S300), generator air intake total pressure adjustment; S400), generator ignition; S500), simulation test of an N-th simulation statepoint; S600), the repeating of the step S500 till the test of all simulation state points is completed, stalling of engine, and closing of an engine fuel supply flow adjustment valve, an oxygen supplyflow adjustment valve, an engine air intake supply pressure adjustment valve and an alcohol supply flow adjustment valve. The application method provided by the invention is high in adjustment speed,saves the adjustment time of the air intake simulation of an engine of a test bed, reduces the test cost, and avoids the resource waste.

Description

technical field [0001] The invention relates to the technical field of test and measurement, in particular to a method for using an air intake system of an engine test bench. Background technique [0002] Before the test flight of the aero-engine, a high-altitude simulation test needs to be done on the ground. During the engine test, a set of intake air parameters are required, including intake air total pressure, intake air flow rate, intake oxygen content, intake air total temperature, and engine fuel supply. The amount of oil is called the intake state point. After reaching the set value and stabilizing at the same time, record its performance and parameters or evaluate its performance. The existing engine test bench technology has no mature technology for engine intake simulation. At the same time, for the simulation There is no accurate theoretical method for determining when the state reaches a stable state, resulting in poor test simulation effects, long test periods,...

AI Technical Summary

Problems solved by technology

[0002] Before the test flight of the aero-engine, a high-altitude simulation test needs to be done on the ground. During the engine test, a set of intake parameters are required, including the total intake pressure, the intake air flow rate, the intake oxygen content, the total intake temperature, and the engine fuel supply. The amount of oil is called the intake state point. After reaching the set value and stabilizing at the same time, record its performance and parameters or evaluate its performance. The existing engine test bench technology has no mature technology for engine intake simulation. At the same time, for the simulation There is no accurate theoretical method for judging when the state reaches a stable state, resulting in poor test simulation effects, long test periods, high costs, and serious waste of resources

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