8 Ways Icing Affects Aircraft

weight

As ice accumulates on your aircraft, weight increase. With an increase in weight, your performance starts to dramatically decrease. Ice accumulation could even put you outside of weight and balance limitations.

当冰堆积在你的飞机上时,会导致重量增加。随着重量的增加,飞机的性能开始急剧下降。积冰的堆积甚至会让你超过配平的极限

ice accumulates 积冰

Performance 性能

Dramatically 戏剧性的

Weight and balance limitation 配平

Induction icing

For piston aircraft, induction icing over a long period of time can lead to a decrease in horsepower. In severe cases where airflow to the engine is dramatically restricted, a complete engine failure could happen.

对于活塞飞机来说,长时间的进气口结冰会导致马力下降。在严重的情况下,流向发动机的气流受到严重阻碍,发动机可能会完全失效。

Piston aircraft 使用活塞发动机的飞机

Induction icing 进气口结冰

Period 周期

Horsepower 马力

Airflow气流

Pitot /Static Blockages

If ice forms in the pitot tube or on the static port, you can get false indications from your airspeed indicator, altimeter, and VSI.

如果在皮托管或静态端口形成积冰,你从空速指示器,高度计,和VSI会得到得到错误的读数。

Forms 形成

Pitot tube 皮托管

Static port 静压口

Airspeed indicator 空速表

Altimeter 高度表

VSI 升降速度表

drag

When ice accumulates on your plane, large increases in parasite dragdramatically reduce your aircraft's performance.

当冰在你的飞机上堆积时,废阻力的大量增加会显著降低你的飞机的性能。

Increased Stall Speed

When icing forms on the leading edge of the wing, it causes the boundary layer to separate earlier. The separation in airflow reduces lift, and increases your stall speed.

当机翼前缘结冰时,边界层会提早分离。气流的分离降低了升力,提高了失速速度。

Leading edge 前缘

Boundary layer 边界层/附面层(流体力学)

Lift 升力

Stall speed 失速速度

Reduced Visibility

A glazed over windscreen can prevent you from seeing even the most obvious features on an approach, like terrain and approach lighting.

挡风玻璃上的“镀釉层”会让你在进近过程中连地形和进近灯光这类有明显特征的物体都看不清。

Windscreen 风挡

Prevent 阻止

Terrain地形

Approach lighting 进近灯光

Compressor Stalls

Ice on an engine inlet can cause the laminar airflow to separate, forcing the engine to ingest turbulent airflow. This puts jet engines at risk for a compressor stall.

发动机进气口的冰会导致层流分离,迫使发动机吸入湍流。这使喷气发动机面临压缩机失速的危险。

Engine inlet 发动机进气口

Laminar airflow 层状气流

Ingest 吸入

Turbulent airflow 湍流

Compressor stall 压缩机失速

Turbine Blade Damage

If you don't turn on cowl inlet anti-icing before ice starts to accumulate, ice build-up could be drawn into the engine, putting the turbine blades at risk for damage.

如果在冰开始积聚之前不打开引擎罩进气口的防结冰系统,积冰可能被吸入发动机,使涡轮叶片处于损坏的风险。

  • 发表于:
  • 原文链接https://kuaibao.qq.com/s/20181120B0IIJF00?refer=cp_1026
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