On 11.04.18 15:08, John Kasunich wrote:
> On Wed, Apr 11, 2018, at 10:30 AM, David Berndt wrote:
> > I'm looking to output about 1000lbf in a linear direction via a
> > crank/slider or ballscrew with peak speed of about 1m/s. So that's a real
> > 5hp of energy.
>
> Mixed units are making my head hurt....
>
> 1000lbf = 4448 newtons I think?
> At 1m/s, that is 4448 watts. 1 HP = 746 watts, so 4454 watts = 5.96HP.
Yup, that'd make my eyes water too ... unless we're on linux:
$ units
...
You have: 1000 lbf * 1 m/s
You want: hp
* 5.9651634
/ 0.16764
The reciprocal conversion can be suppressed by invoking "units -1".
Erik
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