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Although there are various suspension methods on various automobiles nowadays, if you roughly distinguish them, they can be divided into two categories. Pen, fun, and www.biquge.info?

Non-independent, independent.

The structure of the non-independent suspension is actually very simple, which is the kind of four-wheel drive car that boys played with when they were children - one axle with two wheels.

Applied to real cars, although the structure is much more complex than that of four-wheel drive vehicles, the principle is the same.

The advantage of suspension in this situation is that it can bear the maximum load, but there are many disadvantages. One of the biggest is that the vehicle's attitude and driving stability are not good.

The reason is simple, you can imagine.

If there are two wheels on one side of the road, because the two wheels are hard connected in the middle, the angle of one wheel will inevitably spread to the other side.

This situation is reflected in the driver and occupants in the car, that is, the car is very shaky and bumpy.

And because the angle of both wheels will change, the performance in grip is also unsatisfactory.

But the independent suspension is much better in comparison.

Independence, as the name suggests, means that the wheels are all independent, and there is no hard connection. When one wheel jumps, the angle and height change, the other side does not follow suit. As a result, the wheels on both sides can be kept independent of each other and as perpendicular to the ground as possible.

The advantage of this type of suspension is that the contact area between the tire and the ground is large, so as to ensure the grip and driving stability of the tire.

Different models choose different forms of suspension according to the load demand. For example, trucks with heavy loads often need to use non-independent suspension, and the left and right wheels are connected by rigid axles with excellent toughness to ensure the load-bearing performance of the chassis.

The model that Zhengxin Laboratory is working on now must choose independent suspension.

Sports cars, the pursuit of degree.

It is important to know that the lateral afterburner generated by the vehicle when telling the cornering is very large, so that each wheel is close to the road surface, so that the tires and the locomotive surface on the ground are as positive as possible, so as to ensure that the power of the vehicle is not lost and better handling.

So now... Wang Rui's team is struggling with independent hanging.

But don't look at the hanging, it's simple to say, it's composed of those three parts. But how to do this well, it is easier said than done, and understanding the principle and how to use it is not a matter of one level.

In the independent suspension piece, there are many ready-made templates. But that's all about eating patent kryptonite, and people are crooked nuts pointing to this to make money.

Therefore, if you want to rely on your own research, even if you use TT and X-Poer as a reference, and make a suspension system that meets the current model, you need to climb several mountains.

The materials science and mechanics involved in it are quite complex.

The shape, length, and position of each connecting rod, even if it is slightly unreasonable, will cause consequences that no one can bear to see.

You must know that it has not been half a year since the Hong Rui broken axis incident. Why did Mitsubishi break the shaft? It's not because of a design flaw!

Therefore, an irresponsible team of designers can cause no less damage than a wave of murderers.

If you are not rigorous and not responsible, it is about the same as seeking money and killing people!

With such psychological pressure, the progress of Wang Rui's team is quite slow.

After learning about this situation, Li Fanyu was really anxious.

This feels like a Japanese Blu-ray five-yard, a movie masterpiece by a famous female artist of human body fluids, when the progress is downloaded to 85% at 2m/s, it suddenly gets stuck and turns to 12k/s......

This Nima is a bloody man who can't bear it.

What's even more embarrassing is that I said before that I would not directly participate in specific research work. And just now, I promised Lao Zhang, who was rigid in his eyes, again......

So in the face of Xu Fufang's complaints, Li Fanyu was also speechless.

After thinking about it for a long time, he had no choice but to say, "Inside...... Now the situation in the market has changed. The models we are working on have already appeared in four competing models in a short period of time. One is from Mazda and the other is from Alfa Romeo in Italy. I also just learned that time is not for me, time is not for me, brother. ”

It is said that the three scholars are either soaked in the laboratory or in front of the computer full of materials all day long. They really don't care much about things in the market.

In addition, Li Fanyu has not been in the laboratory recently, and the research task is heavy, so these three perverts have almost lived in the laboratory and rotated.

Even Xu Fufang, the most normal of the three, was a sloppy image at this time, with a long stubble.

I don't even have time to shave, let alone watch the news and pay attention to the hot situation in the industry.

Hearing Li Fanyu say this, he could fully understand.

In the final analysis, research is for the market. If there are no market factors, then research is meaningless.

Demand produces the market, the market produces competition, and competition can promote creativity.

This is the immutable theorem of the economy and society.

"Hmm... Why don't you take Wang Rui with them... Hurry up and catch up with the progress?" Xu Fufang is an old brother in the end, although he was worried about Lao Zhang in his heart, he still tentatively put forward his own opinion.

Li Fanyu grinned, "I don't think there's any other way." ”

……

Regarding Li Fan's foolish behavior, Lao Zhang's heart is not a good thing.

He is full of confidence that the current research is a key point in the real maturity of these student teams. Since the start of the project, he has devoted almost all of his energy to supervising each team. Strive to let them tap their full potential and move towards real maturity.

So in the face of Li Fanyu at this time, he naturally didn't have a good face.

"Don't tell me anything about competition, Mazda and Alfa Romeo just had a meeting to announce the launch of a model for this market. I don't understand what you're anxious about! Xiaofan, you are my best student, and I know that if you make a move, you can complete your research work quickly.

But don't you think it's time to give your brothers a chance? They can't always be under your intervention! I know it's selfish to say that, and I know that all these opportunities are created by you for them. But even if the teacher begs you, don't interfere this time, let them do it. ”

Lao Zhang is a straightforward person, what do you have to say.

In the face of his words that were close to pleading, Li Fanyu was also bitter and couldn't speak.

Teacher, if I didn't have the deadline for Donkey Day, I wouldn't be in a hurry!8