Posted by: crash! ® 03/21/2006, 13:55:47 Author Profile eMail author Edit

I'm compressing a large automotive suspension spring, and then releasing it with a trigger mechanism. The goal is to accelerate a metal plate up to 65 ft/s for a test. How can I calculate the maximum speed I'll get if I know the spring constant, spring mass (wire dia, etc), and the mass of the metal plate?

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Re: spring inertia
Re: spring inertia -- crash!	Post Reply	Top of thread	Forum

Posted by: zekeman ® 03/21/2006, 22:03:37 Author Profile eMail author Edit

F^2/2K=mv^2/2 v=F*sqrt(m/K) where F is the max force on spring m=mass of plate K=spring constant v=max velocity First determine F and K from spring formulae.

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Re: spring inertia
Re: Re: spring inertia -- zekeman	Post Reply	Top of thread	Forum

Posted by: crash! ® 03/21/2006, 22:19:04 Author Profile eMail author Edit

Thanks! I'll work on it. Alan

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Re: spring inertia
Re: Re: spring inertia -- zekeman	Post Reply	Top of thread	Forum

Posted by: zekeman ® 03/21/2006, 22:09:57 Author Profile eMail author Edit

Correction v=F*sqrt(1/mK))

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