|
Grootte: 709
Commentaar:
|
← Versie 25 sinds 2017-03-11 14:06:07 ⇥
Grootte: 0
Commentaar:
|
| Verwijderingen worden op deze manier gemarkeerd. | Toevoegingen worden op deze manier gemarkeerd. |
| Regel 1: | Regel 1: |
| Involute - or evolvent - curves are used as the shape of teeth of gears. For an introduction to more advanced math, see https://en.wikipedia.org/wiki/Involute. <<TableOfContents()>> = What is an involute curve? = The quick and dirty example in the picture says more than words. {{attachment:involute_q_and_d.jpg}} The main reason for using gears with involute shapes is that there is no friction between teeth - against common believe. The teeth roll on each other when rotating. It is the gear application that makes a polar calculation based on radii more useful than a Cartesian calculation based on (x,y) - we are only interested in the first small part that starts from the base circle. |
