Neil, so design a teest that gathers data which can be applied by the
racers. I have no clue, as you all know by now, on salt and how it affects
or is affected by anything. So how does elasticity affect the racer? How is
it quantified in terms that can be analyzed?. I do not know.
mayf
----- Original Message -----
From: "Albaugh, Neil" <albaugh_neil@ti.com>
To: "'DrMayf'" <drmayf@teknett.com>; "'Dave Dahlgren'" <ddahlgren@snet.net>
Cc: <land-speed@autox.team.net>
Sent: Wednesday, August 13, 2003 10:58 AM
Subject: RE: Bonneville Request
> Mayf;
>
> As Dan suggested, maybe the beer can rebound test will supply enough data.
>
> I don't think salt is "soft" but the question is "is it "elastic" in the
> strict physics definition?"
>
> Regards, Neil Tucson, AZ
>
>
> -----Original Message-----
> From: DrMayf [mailto:drmayf@teknett.com]
> Sent: Wednesday, August 13, 2003 10:28 AM
> To: Albaugh, Neil; 'Dave Dahlgren'
> Cc: land-speed@autox.team.net
> Subject: Re: Bonneville Request
>
>
> Sorry, Neil. My test is CoF only. Maybe some of you other folks could come
> up with some rough science of your own? I know the physics involved in the
> COF but donot have a clue as to the rolling resistance afforded by soft
> media...which I don't think the salt is...
>
> mayf
> ----- Original Message -----
> From: "Albaugh, Neil" <albaugh_neil@ti.com>
> To: "'Dave Dahlgren'" <ddahlgren@snet.net>; "'DrMayf'"
<drmayf@teknett.com>
> Cc: <land-speed@autox.team.net>
> Sent: Wednesday, August 13, 2003 9:08 AM
> Subject: RE: Bonneville Request
>
>
> > Dave & mayf;
> >
> > Let me propose a slight addition to your "salt hardness test". In
> > addition to "...dropping a sphere of a known weight and height and
> > checking the
> depth
> > of the depression..." it would be useful to also measure the height
> > that that sphere rebounds to. This will add a data point that measures
> > the coefficient of restitution-- how much energy is lost by that
> > deformation
> and
> > springback. My guess is that the higher the coefficient is, the less
> > power is required to make that "rolling dent" in the salt surface.
> > Sort of like the difference in a train wheel rolling on a steel rail
> > and rolling in
> sand.
> >
> > Regards, Neil Tucson, AZ
/// unsubscribe/change address requests to majordomo@autox.team.net or try
/// http://www.team.net/mailman/listinfo
/// Archives at http://www.team.net/archive
|