Leak detection method for floating air bag

Abstract

The invention discloses a leak detection method for a floating air bag. The leak detection method for the floating air bag is characterized in that the air bag is controlled to leak quantitatively at different leakage rates, an equation: deltaV=alpha0+alpha1(T / P)+alpha2(T / P)2+ ... + alphan(T / P)n, is built according to an ideal air state equation; the leak detection method for the floating air bag comprises: detecting air bag pressure P and air bag temperature T in any state, and then working out the volume deltaV of leak air according to the equation. According to the leak detection method for the floating air bag, leakage can be judged in a simple and rapid manner, and the leakage rate can be concretely detected.

Description

technical field [0001] The invention relates to a leakage detection method, more specifically to a leakage detection method of a floating air bag. Background technique [0002] As a kind of aircraft that relies on buoyancy to lift into the air, aerostats have unique advantages such as low cost, long time in the air at a fixed point, large load capacity, low noise, low energy consumption, good safety, and high cost-effectiveness. , remote sensing communication, tourism, emergency rescue and many other civilian fields have a wide range of uses and good prospects. The buoyancy of the aerostat comes from the light gas such as helium in the capsule. The leaks on the surface of the airbag will cause abnormal stress concentration and gas leakage of the capsule, and will greatly affect the service life of the aerostat. [0003] In the prior art, there are mainly air bubble detection methods, direct pressure detection methods and flow detection methods for the testing of floating ai...

AI Technical Summary

Problems solved by technology

The buoyancy of the aerostat comes from the light gas such as helium in the capsule. The leaks on the surface of the airbag will cause abnormal stress concentration and gas leakage in the capsule, and will greatly affect the service life of the aerostat.

[0003] In the prior art, there are mainly air bubble detection methods, direct pressure detection methods and flow detection methods for the testing of floating air bags. These existing methods directly test the temperature and pressure of the system, and the test results are greatly affected by the external environment. , often cannot rely on the test results to judge whether the system is leaking, the method itself is costly and the cycle is long, and the accurate detection of the leakage cannot be realized

Images