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  1. Replies
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    Viv, if you are using optimum tire why don't you...

    Viv, if you are using optimum tire why don't you just use the COM add in? There is an example of it included with OptimumTire.

    In addition if you look on the TTC forum I have posted there a block...
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    33,155

    Ritwik, I just wanted to point something out to...

    Ritwik, I just wanted to point something out to you which might be a slight problem.
    You have in your spreadsheet a rear Spring rate of ~180N/mm which is over 1000 lb/in. Do you know if you can...
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    2,038

    Zupin Motorsport in Germany sells them. ...

    Zupin Motorsport in Germany sells them. http://www.zupin.de/index.php?id=26
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    Caster angle on the rear axle is not an important...

    Caster angle on the rear axle is not an important metric by itself, as like you said, the rear suspension does not steer (unless you have rear wheel steering). Start at the contact patch and think...
  5. Alumni, I don't think that electronic aids...

    Alumni,

    I don't think that electronic aids are making a huge difference in artificially increasing driver ability. I think that driver ability and training is the absolute limiting factor. ...
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    Even though Solidworks and CATIA are both from...

    Even though Solidworks and CATIA are both from Dassault Systems, you cannot open a CATpart into Solidworks and vise versa. You have to save the file as a generic format (STEP or IGS) or rebuild the...
  7. Replies
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    139,914

    Sticky: There are also some new Avon 10 inch tires out...

    There are also some new Avon 10 inch tires out since last season. They would be very interesting to see tested, however the OD is only ~16 inches, which might cause problems with the machine if I am...
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    34,394

    Tobias, I don't think there is any re-bashing...

    Tobias, I don't think there is any re-bashing required. The important thing is that we all learn from this situation and make improvements to the competition and the rules change/creation process...
  9. Replies
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    34,394

    Thats not the only one. "No parts of the car...

    Thats not the only one.

    "No parts of the car are allowed to be higher than the main roll hoop"

    According to what I have read, this is for 'Safety' in the case of rear wings flying off, and...
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    8,312

    A linear system is defined such that the response...

    A linear system is defined such that the response of the system (in this case acceleration or velocity) is a first order function of the state variables (velocity and position). As soon as you make...
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    jlangholzj, it sounds to me that you are...

    jlangholzj,

    it sounds to me that you are overcomplicating your analysis without having a clear definition of what you want to find.

    First of, I would leave the Kt frame out the equation at...
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    I would like to echo the comments from Harry. ...

    I would like to echo the comments from Harry.

    The tilt table was definitely a point for concern. First of all there was only about a 20mm lip at the bottom for the tire to rest against, which...
  13. Thread: Damping Rates

    by SNasello
    Replies
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    49,844

    Interesting problem Z. Im not going to touch...

    Interesting problem Z.

    Im not going to touch on Q1 because it was already answered correctly.

    Q2: When the two masses are stretched apart and released, they will both be subjected to the same...
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    I believe our Team Leader in 2011 sent in...

    I believe our Team Leader in 2011 sent in Feedback, but I cannot be certain. I will have the team write an official feedback as well.
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    Tobias, the car from Esslingen weighed in...

    Tobias,

    the car from Esslingen weighed in 4.6kg under its design weight, but they actually added a larger battery before the endurance (500g). Without that they would have been underweight...
  16. Ian, I'll throw some numbers at you. Depending...

    Ian,

    I'll throw some numbers at you. Depending on the size of the fan, you are probably looking at anywhere from 3 to 12A for the sizes that would be used in FSAE.

    The Davies Craig water...
  17. Murpia, you can measure any of these quite...

    Murpia,

    you can measure any of these quite easily in the workshop with a current clamp and Oscilloscope, or data acquisition system.

    The starter motor current for a motorcylcle engine would...
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    Brian, those ramp angles sound like pretty...

    Brian,

    those ramp angles sound like pretty good choices to me to start with. If you end up using the diff over the next few years you can slowly build up a range of spare parts for it that you...
  19. Thread: Damping Rates

    by SNasello
    Replies
    84
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    49,844

    I had just about written this very same thing.

    I had just about written this very same thing.
  20. Replies
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    Your arguments all sound valid. It sounds like...

    Your arguments all sound valid. It sounds like you have already made a decision.

    It also sounds like no one in your team understands the pros of the salisbury diff, or how to maintain it...
  21. Thread: Damping Rates

    by SNasello
    Replies
    84
    Views
    49,844

    I would have to agree with the posts here on all...

    I would have to agree with the posts here on all fronts to some extent.

    Are the calculations posted by Claude complete (or correct, however you want to look at it)? No. Are they useful?...
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    I would like to back up the notion that a 10"...

    I would like to back up the notion that a 10" tire from Goodyear would be welcomed. If it were not for the cancellation of the D2704s, we would not have switched to 10s this year and still be...
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    I agree with Jay, i don't really know what all...

    I agree with Jay, i don't really know what all you want to log at 500 Hz. The only sensor I would log that fast would be vertical accelerations, damper travel, or strain gauges.

    That being...
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    @SJF: The unit vector represents the direction...

    @SJF: The unit vector represents the direction of the resultant force you are trying to find. The contact patch (for the purpose of this analysis) is rigidly attached to the upright. YOu are...
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    Atomsk, The rule is trying to stop teams from...

    Atomsk,

    The rule is trying to stop teams from skimping on a safety critical item, by making miniature headrests that barely only fit one driver size and not providing any provision for adjustment....
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