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   sci.physics.research      Current physics research. (Moderated)      17,516 messages   

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   Message 16,085 of 17,516   
   Luigi Fortunati to All   
   Re: The tires on the asphalt   
   07 Apr 18 23:24:36   
   
   From: fortunati.luigi@gmail.com   
      
   Thomas Koenig mercoled=EC 04/04/2018 alle ore 09:35:02 ha scritto:   
   > Well, you have removed most effects of what will happen from consideratio=   
   n;   
   > the only major effect left (that I can think of) is viscoelasticity.   
   >   
   > Rubber can be quite elastic for short deformations; a force applied only   
   > for a short time, and then removed, will lead to a smaller deformation   
   > than a force applied for a longer time.   
   >   
   > So, for this, the tread will be deformed a little less, so the vehicle   
   > will rise a bit.   
      
   Your answer is the exact confirmation of what I expected: the vehicle   
   in speed tends to rise a little, that is to weigh less against the   
   asphalt, compared to the stationary car.   
      
   [[Mod. note -- The vehicle's weight will be unchanged (assuming the   
   road to be straight & flat (neither curving-up nor curving-down).   
   As Thomas Koenig explained, this *same* weight will lead to a smaller   
   tire deformation at high speed.   
   -- jt]]   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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