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Two phase flow ground simulation test method and device under flight load function

A flight load and ground simulation technology, applied in the field of two-phase flow measurement, can solve the problems of poor safety, occupation, large experimental space, etc., and achieve the effect of control and measurement, not easy to damage, and good safety

Inactive Publication Date: 2008-07-16
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

In this case, the safety of experiments is relatively poor, and flight accidents and damage to experimental equipment are prone to occur.
In addition, since the aircraft can only fly in the sky when the weather suitable for flying conditions appears, the follow-up experiment is greatly affected by the weather; in addition, the more follow-up experiments, the more the number of flights, and the higher the cost of the experiment
[0007] Although some people have already imagined using a long straight track to accelerate on the ground to simulate the flight loading state, it is not necessary to carry out the follow-up experiment, but because this method requires an acceleration track of thousands of meters, it takes up a lot of experimental space. It is not easy, and the size of the dynamic load is also difficult to adjust in real time according to the requirements of the experiment
The ground simulation method of two-phase flow under dynamic load has not yet been realized, and the method that can effectively carry out data acquisition and real-time detection of two-phase flow under dynamic load conditions is still being explored

Method used

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  • Two phase flow ground simulation test method and device under flight load function
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  • Two phase flow ground simulation test method and device under flight load function

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Embodiment Construction

[0026] specific implementation plan

[0027] Combined with Figure 1, the composition of the flight load simulation experiment platform is further introduced. The high-speed rotation of the experimental platform requires the experimental device to have a very solid cement foundation. Both the motor 5 and the turntable 3 are fixed on the frame 1, so as to ensure that the whole platform is firm and stable when running. The turntable 3 is connected with the frame 1 through bearings, the central axis of the turntable 3 is connected with the motor 5 through the belt, the motor 5 drives the platform to rotate at high speed through the belt, the speed of the motor 5 is controlled and adjusted by the frequency converter, and the frequency converter is installed on the platform Outside. Because what motor 5 has used is three-phase power line, so the electric wire of whole platform will have grounding protection. Due to the high-speed rotation of the turntable 3, the experiment inevit...

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Abstract

A two phase flow ground simulation test method and a device under a flying loading action belongs to the technical field of measuring two phase flow. The method utilizes a flying dynamic loading simulation platform to simulate the dynamic loading state of an airplane and acquires different centripetal accelerations through adjusting the rotary speed of a dial so as to simulate the flying loading state. The device consists of the flying dynamic loading simulation platform and a two phase flow test system; wherein, the two phase flow test system consists of a floating water circulating system, a liquid parameter measuring system and a data collecting and storing system. The method and the device can carry out the two phase flow ground simulation test under the flying loading action on the ground.

Description

technical field [0001] The invention relates to a two-phase flow ground simulation test method and device under the action of a flight load, belonging to the technical field of two-phase flow measurement, and relates to a new technology of a ground simulation platform in a flight load state and a fluid parameter measurement method. Background technique [0002] Gas-liquid two-phase flow is a flow process in which two fluids of gas and liquid are mixed or boiled and condensed, and is usually a heat and mass transfer process accompanied by gas-liquid phase transition. Flow boiling heat exchange in horizontal tubes is widely used in power, nuclear energy, chemical, aerospace and heat exchange equipment and refrigeration and air conditioning in various processing industries. It is helpful for saving energy, reducing the consumption of precious metals, reducing equipment volume and reducing production costs. have important practical value. [0003] In the field of aviation indus...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M10/00
Inventor 宋保银姚秋萍闫旭东
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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