A wind tunnel test process verification method with mixed implementation of practical operation and simulation

Abstract

The invention discloses a method for verifying the flow of a wind tunnel test performed in combination with actual operation and simulation. The wind tunnel test process verification method is based on the wind tunnel control program. In the wind tunnel control program, there is a corresponding control module for each field device. Each control module is equipped with a mode switching interface, a set of actual input and output interfaces, and a set of The program controls the intermediate interface and an emulation submodule. The wind tunnel test process verification method can flexibly configure field devices that require "simulation" or "practical operation". Actual actions, while verifying the timing and logical interlocking relationship of the wind tunnel test process, can also verify whether the actual working status of the key field equipment meets the requirements. The wind tunnel test process verification method does not require additional software and hardware resources, and can be implemented in any general-purpose controller and supporting development software.

Description

technical field [0001] The method belongs to the technical field of wind tunnel tests, and specifically relates to a method for verifying a wind tunnel test process that is performed in combination with practical operations and simulations. Background technique [0002] Hypersonic high-temperature wind tunnel safety issues are prominent. Wind tunnel tests involve various dangerous media such as flammable, explosive, strong oxidation, and cryogenic. The time and economic cost of the wind tunnel test is high: before the wind tunnel test, the inspection and preparation process of nearly 10 systems and hundreds of equipment in the hypersonic high-temperature wind tunnel takes an average of 4 to 8 hours; the hypersonic high-temperature wind tunnel has a caliber of 3 The meter level, the flow rate is hundreds of kilograms per second, and the consumption cost of a dynamic combustion reaches more than 100,000 yuan. The wind tunnel test process is complicated, and it is necessary fo...

AI Technical Summary

Problems solved by technology

For hypersonic high-temperature wind tunnels, if these risk factors exist, once the actual operation starts, the price paid will be extremely high: ranging from data invalidation and waste of manpower and material resources; to severe incidents such as damage to wind tunnel equipment, explosions, and combustion

[0005] At the same time, due to the frequent operation of field equipment in hypersonic high-temperature wind tunnels under high-load conditions, wear or aging will inevitably occur, resulting in varying degrees of changes in their dynamic characteristics, which cannot meet the timing requirements of previous test procedures, and may even occur Failure, seriously affecting the safety of wind tunnel equipment and personnel

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