2017 Formula 1 suspension designs

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FrukostScones
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Joined: 25 May 2010, 17:41
Location: European Union

Re: 2017 Formula 1 suspension designs

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set-up problems for RB... mmmm?

AMUS:
Ferrari lands a hit.

Redbull has to disarm.
http://www.auto-motor-und-sport.de/form ... 49683.html
https://translate.google.com/translate? ... 49683.html

and maybe another hit:
Mercedes puts trick suspensioin voluntarily on hold.
http://www.auto-motor-und-sport.de/form ... 49686.html
Finishing races is important, but racing is more important.

LookBackTime
LookBackTime
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Joined: 19 Feb 2013, 20:33

Re: 2017 Formula 1 suspension designs

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FrukostScones wrote:
24 Mar 2017, 10:40
set-up problems for RB... mmmm?

AMUS:
Ferrari lands a hit.

Redbull has to disarm.
http://www.auto-motor-und-sport.de/form ... 49683.html
https://translate.google.com/translate? ... 49683.html

and maybe another hit:
Mercedes puts trick suspensioin voluntarily on hold.
http://www.auto-motor-und-sport.de/form ... 49686.html
From Mercedes article:

"... The technique is too complicated. A Mercedes engineer told us that even in our own team, a maximum of 10 engineers understand the system in its entirety. ..."

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Phil
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Joined: 25 Sep 2012, 16:22

Re: 2017 Formula 1 suspension designs

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http://www.auto-motor-und-sport.de/form ... 49686.html

I assume this has already been posted above, but here are some of my own translations (that may be relevant to other topics surrounding the Mercedes team):
  • apparently, RedBull used their trick suspension in the first week of testing, not in the 2nd
  • Mercedes apparent troublesome 2nd week of testing wasn't due to suspension, but the aero package
  • Toto: There's nothing in the clarification of the suspension rules that would force them to change anything [about their trick suspension] or hamper their performance
  • Mercedes never used the trick suspension during testing in Barcelona
  • Mercedes apparently wouldn't have used the trick suspension in Melbourne even if the suspension rules hadn't been clarified because the system doesn't bring any advantage at this track
  • To the contrary: due to added hydraulic connections and valves, the system would add ~1.5kg. The W08 however is already 5kg over the weight limit (car = 728kg+5kg = 733kg). Also, using the system would have added the risk that a team may protest.
  • Mercedes confident their system is still legal. The question is, if protested by another team, they could convince the stewards***
  • *** a FIA technicians admits that the [suspension] systems are so complicated, that it is difficult to assess if prohibited things could be done with them.
  • A Mercedes technician said even within the [suspension] team, there are only roughly 10 who understand the system in its entirety.
  • In 2016, apparently, the trick suspension was only used at 5 venues. It is unclear if the system will be used this year or not. Apparently RedBull used theirs quite a bit more often.
Last edited by Phil on 24 Mar 2017, 14:04, edited 1 time in total.
Not for nothing, Rosberg's Championship is the only thing that lends credibility to Hamilton's recent success. Otherwise, he'd just be the guy who's had the best car. — bhall II
#Team44 supporter

DaveW
DaveW
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Joined: 14 Apr 2009, 12:27

Re: 2017 Formula 1 suspension designs

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A few pages ago I asked for people's ideas the meaning of Charlie Whitings comment as reported in Autosport. I received an interpretation by Mr.G (which I didn't like much, although it may be true) and a comment by JT who said, "How Silly" (which I agree with).

So I would summarise the position on F1 Suspension design as follows:

The vehicle attitude (ride height & rake) can be tailored to match aerodynamic requirements by "shaping" front & rear spring & bump rubber characteristics. This is perfectly legal and has happened (with varying success) since the introduction of ground effect aerodynamics.

The result was suspension set-ups that were increasingly hard on tyres (particularly after "active" suspension was banned). This led to short tyre life and reduced "grip" though low/medium speed corners. This was the problem faced by Pirelli when the became sole supplier to F1. A problem that they have yet to master, apparently.

F1 engineers at some Teams discovered that they could contribute by changing the static ride height of the suspension as a function of speed more or less legally, which implied that the aero. requirements could be met with a less extreme spring stiffnesses. This made the tyres perform better, and improve life.

As with any innovation, the "inventor" had a head start, and competing teams frequently attempt to ban the invention (the fear factor), particularly since track testing is currently limited to race weekends. The excuse, in this case, was "it affected aerodynamics", which was translated to become Charlie Whiting's "silly" statement.

In my view, it should not be difficult to devise a set of rules that both regulators and competitors are content with - and stick with that (getting Charlie Whiting off the hook), reviewing them only occasionally. Innovations will happen and should be tolerated (all teams have grown up engineers to call upon). Incidentally, why do Mercedes require three pitot tubes?

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SiLo
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Joined: 25 Jul 2010, 19:09

Re: 2017 Formula 1 suspension designs

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Phil wrote:
24 Mar 2017, 12:04
http://www.auto-motor-und-sport.de/form ... 49686.html

I assume this has already been posted above, but here are some of my own translations (that may be relevant to other topics surrounding the Mercedes team):
  • To the contrary: due to added hydraulic connections and valves, the system would add ~1.5kg. The W08 however is already 5kg over the weight limit (car = 728kg+5kg = 733kg). Using the system would have added the risk that a team may protest.
Where did you get this info that their car is overweight? I know that the FI is meant to be overweight, but not read anything about Mercedes.
Felipe Baby!

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Phil
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Joined: 25 Sep 2012, 16:22

Re: 2017 Formula 1 suspension designs

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It's in that article i translated by AMuS.
Not for nothing, Rosberg's Championship is the only thing that lends credibility to Hamilton's recent success. Otherwise, he'd just be the guy who's had the best car. — bhall II
#Team44 supporter

shady
shady
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Joined: 07 Feb 2014, 06:31

Re: 2017 Formula 1 suspension designs

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It is a minimum weight, they are allowed to be above. It is entirely disadvantageous however.

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turbof1
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Joined: 19 Jul 2012, 21:36
Location: MountDoom CFD Matrix

Re: 2017 Formula 1 suspension designs

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Moved posts about politics in F1 to a new thread: viewtopic.php?f=1&t=26198
#AeroFrodo

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turbof1
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Joined: 19 Jul 2012, 21:36
Location: MountDoom CFD Matrix

Re: 2017 Formula 1 suspension designs

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Unstickied topic.
#AeroFrodo