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Re: Rotating disk

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Email me your FAX number & I'll send you a page out of my Machine Design
book. The equations you need are:    T=2 *pi*n*J/5t  &  J=Mr^2
Chuck Utzman

Ron Hill wrote:

> I need some help from the dark side.  I can't find my dynamics text book.
>
> I have a disk of 4.65 feet radius
> wt = 100,000 lbs
> rotation = 4 rev. per sec.
>
> brake stops rotation is 3 seconds.
>
> Assuming uniform density and uniform braking, what is the max. torque???
>
> Ronald Hill, P.E.
> HILL Consulting Engineering
> PO BOX 26525
> Birmingham, Alabama 35260 USA
> Phone: 205.823.4784
> FAX: 205.823.4145
> Email: ronhill(--nospam--at)hillce.com
> Efax: 509.275.8095
> http:\\www.hillce.com
>
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