精密仪器

飞机发动机如何工作(超萌版)

下面是CFM公司制作的小短片,从空气分子角度,介绍喷气式发动机工作原理,顺便宣传自己的产品。每年专英讲到发动机,都回顾一下这个短片。今年顺便翻译几个难句!


参考原文(括号内为画外音):

Hear that boys?

What is it?

Just another narrow-body aircraft.

Hey, my atoms are shaking. Strange. It sounds far. But I bet my last proton that beast is much closer than you think.

嘿,我的原子在颤抖。太奇怪了!听上去很远,但我用我最后一颗质子打赌,这货比你们想的要近!

Hold on, people. It’s a LEAP-powered aircraft. A leap into the unknown.

What on earth is a LEAP?

Something you sure haven’t seen before. Everybody get ready. We are going in.

Someone please tell me what has just happened.

(Sure, the engine makes the plane move forward. Thrust is produced by air being pulled in by the fan blades. Then, this air is ejected at greater speed through the exhaust, creating the required pushing force. This is a principle of the Newton’s Law. For each action, there is an equal and opposite reaction. So, how is this possible?)

Gentle souls, come with me to the bypass.

温柔的小伙伴,我们去外涵道!

Extreme spark freaks, with me, we’ll hit the compressors, combustor and turbines.

极端火花狂,我们去压气机、燃烧室和涡轮!

(The LEAP is a high-bypass-ratio engine, which means that a large amount of air bypasses the core of the engine to be ejected directly into the exhaust stream. The fan acts as a propeller. Its curved rotating blade accelerates the air flow into the engine. Lighter composite material provides better efficiency and resistance.) 

Here come the compressors. Get ready. Things are going to heat up. Feel that? It’s the low-pressure compressors squeezing us. Now, the high-pressure compressors. You are going to feel the difference.

(Ultra-efficient compressors deliver optimum air pressure and temperature conditions for combustion.)

It’s rising up now. let’s get toasted!

Gentlemen, meet your kerosene counterparts. These guys are going to light up your day.

Already? We usually mingle inside.

Not any more!

I thought there’d be more of you.

Normally yes, but in this engine, fewer of us are needed.

(This kerosene particle is right. The LEAP engine burns less fuel than former engines. In addition, the fuel nozzles mix fuel and air before they enter the combustor, creating a homogenous mixture that minimizes the peak temperature during combustion. This technology significantly reduces emissions.)

OK, let’s go.

(The combustion chamber! This is the heart of the engine, where energy is created through combustion of fuel and compressed air.)

Are you ready? Here comes the final blast.

What a boost!

Where are we now?

Turbines. Let’s transfer our energy to them. This is the last stream stage before we join the soft team. Enjoy.

温柔小队指走外涵道的小伙伴

(Advanced material and aerodynamics makes the turbines much more efficient and durable. The pressure and speed of the hot gases provide the force needed to turn the turbines and the shaft, which in turn drives the compressor and fan.)

Come on, guys, don’t hang around. We alone are responsible for 90% of the thrust from this baby. Here comes the other adrenaline junkies. So, how was it?

肾上腺素狂指走内涵道的小伙伴们

Fast, fine and fantastic!

What a trip!

Are you kidding me? It was awesome the primary flow did most of the job.

Not exactly, kid. It’s team work. We definitely need each other. We provided the energy to drive the engine, and they provided most of the thrust to make the aircraft move forward.

Hey, boss, sounds we are in luck today.

You said it. It’s game on again, boys. Let’s go! 


上一篇:钢材断裂的基本分析 下一篇: 未来汽车冲压先进技术有哪些?