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The Genius Device That Rocked F1

https://www.youtube.com/watch?v=FhmLb2DhNYM
65•brudgers•7h ago

Comments

raldi•6h ago
…is https://en.wikipedia.org/wiki/Inerter_(mechanical_networks)
SixDouble5321•3h ago
Thanks for saving me 40 minutes.
eitland•1h ago
From the article:

> Malcolm C. Smith, a control engineering professor at the University of Cambridge, first introduced inerters in a 2002 paper.[1] Smith extended the analogy between electrical and mechanical networks (the mobility analogy). He observed that the analogy was incomplete, since it was missing a mechanical device playing the same role as an electrical capacitor. The analogy makes mass the analog of capacitance, but the capacitor representing a mass always has one terminal connected to ground potential. In a real electrical network, capacitors can be connected between any two arbitrary potentials, they are not limited to ground. Noticing this, Smith set about finding a mechanical device that was a true analog of a capacitor. He found that he could construct such a device using gears and flywheels, one of several possible methods.

d_silin•3h ago
"...first introduced inerters in a 2002 paper."

Damn impressive to discover a new mechanical system just from gears and flywheels.

cadamsdotcom•3h ago
Seems the flywheel in the device is what does the magic - dampening oscillations (which would demand the flywheel turn faster/slower, which its intertia will resist). Then it gets put in series with normal dampers that reduce compression/expansion. The inerter cancels vibrations & high frequency movement while the usual shock absorption components handle the rest of the shock absorption, making a great team.

Have I understood it right?

Daneel_•2h ago
The key takeaway for me was that it actively resists the oscillations, making it a more effective damper than a shock absorber in a range of situations, but it doesn't replace the shock.

Donut Media actually has a great video on the topic: https://www.youtube.com/watch?v=t58qjcNwEbo

As far as my understanding goes, it's basically a low-pass filter that also provides momentum in the direction of movement - this actively dampens spring oscillation (as opposed to a shock absorber, which passively dampens oscillation). It should be installed in parallel with the spring and shock.

brudgers•1h ago
If I understood the video correctly, the simple mechanical model is an inerter is the inverse of a spring.

Analogous to a capacitor being the inverse of an inductor in an electrical model.

Trying to find a better mechanical analog to the capacitor to optimize a passive suspension was the motivation because mass-damping suspensions had already been banned when active suspension got banned.

But I probably misunderstood the video.

epolanski•3h ago
It's quite insane to think how much faster F1 could be, especially on older regulations without development and budget limitations.

Regulations have been trying to limit the speed of the cars for decades, with only partial success.

gausswho•2h ago
Not just speed nerfing. The cars now are ~50% larger than they used to be, while the tracks haven't gotten any wider. As a result, there's hardly any overtaking unless an egregious mistake is made. The lame solution they have to this is to allow cars one second behind to mechanically reduce their drag in selected spots of the track (DPS).

And don't get me started on the tire regulations.

F1, from the cars to the drivers, is peak manufactured drama.

MindSpunk•2h ago
Just about every motorsport series is manufactured drama. The rules and restrictions are arbitrary. Anything with a large televised audience will have the rules impacted by trying to make a spectacle. It's not exclusive to F1.

F1 certainly has its issues though, the cars are just too big. Monaco has been a joke of a race for a while, the "race" is won in qualifying. 2026 might be better as the cars are getting smaller again.

FatalLogic•2h ago
>peak manufactured drama

That's largely true. There is at least one, wonderful, reward from all the rule-fiddling, though it might be orthogonal to the issues you've highlighted, but driver deaths and severe injuries are much less common than they used to be.

https://en.wikipedia.org/wiki/List_of_Formula_One_fatalities

A cynic would say that, if the arena no longer offers us the ever-present possibility of death, then the drama needs to be enhanced in other ways, even if they are artificial.

breve•1h ago
Romain Grosjean survived his car being torn in half:

https://www.youtube.com/watch?v=ZQ7_En2xEm4

avalys•1h ago
Why did the cars get 50% larger? Was it for crashworthiness?
KORraN•1h ago
I think it was mostly due to an enlarged fuel tank, as there is no refuelling during races. Also, energy recovering system, batteries, the whole hybrid system. This post has great size comparison: https://www.reddit.com/r/formula1/comments/1i16g7e/f1_car_si...

It looks like the nose got longer as well, I assume this is for crashworthiness.

dwd•1h ago
This will always be peak F1 for me.

There's something about the way the car twitches like it could go faster if you let it, and the sound!

https://www.youtube.com/watch?v=8c0o697F1g8

raspasov•53m ago
The V10s from around 2000 were arguably the best sound:

https://www.youtube.com/watch?v=RqaJKTRs-Kg

But that 1985 car control is insane!

raspasov•56m ago
I've been watching F1 since circa 1998.

Before DRS there was even less overtaking.

bruce511•54m ago
Lots of truth here, but context matters.

Firstly some tracks have a lot of overtaking. Some are harder, Monaco has none.

The need for DRS is primarily because the aerodynamics of the following car are affected by the dirty air caused by the car in front. DRS is an aero assistance to overcome aero penalties.

Regulations, spending caps, wind tunnel limitations etc are indeed designed yo keep car performance as close as possible. Frankly without that racing is terminally boring. Without it the pack would simply spread out in predictable formation based on car speed. By keeping the cars closer together in performance the driver matters more, and there is more opportunity for actual racing.

I'll also point out that all sports, including all motor sports, are manufactured to create a contest. From the NFL draft system, to baseball cost caps, to endless rule tweaks, the goal of sport is to provide for more unpredictable outcomes. Thats kinda the point.

andrepd•38m ago
You can clearly see this by comparing the formula1 subreddit and, say, the football (soccer) subreddit. One is mostly plays and goals and tactics, the other is mostly ig drama :)
xdennis•1h ago
Donut explains the inerter much better: https://www.youtube.com/watch?v=t58qjcNwEbo

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