Re: Spring rates for VP props

From: Nick Ray <lasray_at_gmail.com>
Date: Fri, 15 Feb 2013 10:55:29 -0500

>
>

I reread this and realized it wasn't really saying what I wanted it to. The
more efficient the a model is the wider the range of torque will appear to
be. i.e. It would look like its taking longer to change over.

The actual range of torques is fixed. Because the spring constant is fixed,
the force the spring generates to oppose the force of the rubber is given
by tau = -k (the spring constant) * theta in radians. So, if theta can only
go between .6 radians and .7 radians because of the high and low pitch
stops, the force that spring can generate is between .6k and .7k.

I'm not starting a 0 radians because of the preload normally used on VP
springs.



> >>"The more efficient the model is the wider the torque range can be."
> Because with respect to energy usage, everything happens more slowly as the
> model becomes more efficient.
>
>
Received on Fri Feb 15 2013 - 07:55:30 CET