Surging – what is it? Causes and how to fix the problem

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2018-03-20 15:16:07

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Surging – what is it? Under this definition mean the failure of stable operation of aviation motor, the violation of gas-dynamic parameters. The engine surge is accompanied by severe loss of traction, clapping with the release of smoke and flame from the turbines, the emergence of significant vibration on Board the aircraft. Often, all this leads to the destruction of the engine.

What's happening surge of aircraft engine?

surging what is

Surging – what is it? This phenomenon occurs as a result of loss sustained rotation of the turbine blades. The process has a tendency to self-expansion. The resulting air turbulence down the rhythm of the engine. Repeated rotation of the same preheated portion of the air in the turbine causes a significant temperature rise of the compressor of the aviation engine.

Surging – what is it? The operation of the engine in the surge mode eventually leads to its damage with the subsequent destruction. This contributes to loss of strength of the blades and the explosions of portions of exhaust gases as a result of excessive rise in temperature.

How to eliminate surging during the flight?

surging of the turbocharger

Pilots take to eliminate surging of the turbocharger in the course of movement of the aircraft? In identifying the problem in the first aviation motor transferred to the mode “idle” or completely turned off. In the latter case, the effect of the surge disappears by itself. It should be noted that when the issue occurs, the temperature of the gases in the turbine increases to catastrophic performance in seconds. Therefore, a timely disconnection of faulty engine is extremely important in preventing disaster.

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In modern aircraft engines set fire automatics. Its operation facilitates the elimination of factors that cause surging of the engine, without the need for deliberate action by the flight crew. Thanks to automation, a fraction of a second the pressure drops in the field of turbines, as well as interrupted fuel supply. All this gives the opportunity to avoid the further ignition of the engine in flight.

Engineering solutions to eliminate surging of the engine

what is surging in aviation

The Main way to deal with the occurrence of surge in aviation is the aircraft engine with coaxial shafts. The latter is able to rotate independently relative to each other at different speeds. Each coaxial shaft is responsible for a part of the turbine and compressor.

In Addition, the engineers include the following:

  1. Mounted on the adjustable turbine engine turning vanes. It helps to improve the airflow of the blades, which actually formed the failures surge.
  2. Use the bypass valve air relieve excess pressure in the compressor of the engine. Thus, it facilitates the circulation of air through the compressor.

Causes

surging engine

Here we found out that this surge in aviation. Now let's look at the reasons that can result in an accident. Surging can be caused by:

  • The aircraft on the transcendent for him, the angles of attack;
  • Tearing or partial destruction of the turbine blades, for example because of their obsolescence, expiry of shelf life;
  • Entering the turbine engine foreign object (debris, fragments runway coverage, flying bird);
  • Engineering errors in the design of the engine or its management systems;
  • Strong gusts of side wind;
  • A critical decrease of the atmospheric pressure (can occur when the movement of the plane in mountainous terrain in hot weather).

In conclusion

In the present article we understood the surging – what is the. As you can see, there are a whole lot of solutions to combat these dangerous phenomena. It is primarily a manual shutdown of the damaged turbine crew, auto restart motor special aviation systems, advanced triggering all sorts of alarms that inform pilots about the danger of ignition of the engine. This being said, you should not be afraid of flights on air transport because accidents currently occur very rarely.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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