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Summary Tegnologie

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Tegnologie Gr 8 Stelsels Elektrochemie En meer

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  • November 14, 2022
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  • 2022/2023
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Hoofstuk 10:
Stelselontleding en stelseldiagramme

Teken Ratstelsels
Ingekoppelde
Dit is moeielik en tydrowend ratte
om ingekoppelde ratte te teken.Hier is ‘n
Figuur
figuur van ‘n vereenvoudigde metode 9.6&7ratte
om ingekoppelde blte147
teken.

Figuur 10.1&2
bl156
Figuur 10.3&4
bl157



Die rat met 5 tande die Vereenvoudigde
dryfrat het ‘n vinniger spoed tweedimensionele skets van
en kleiner uitsetkrag ‘n rattrein
Die rat met 10 tande die
gedrewerat het ‘n stadiger
spoed met ‘n groter
uitsetkrag.
Meganiese voordeel
Die snelheidsverhouding of ratverhouding van 2:1
 Die dryfrat draai 2 keer vir elke 1 draai wat die gedrewe
rat maak
 Die dryfrat draai 2 keer so vinnig as die gedrewe rat
 Die krag of lading op die dryfas is is die helfte van lading
op uitset as
 Die dryfrat is helfte die grootte van gedrewe rat
 Dryfrat draai vinniger maar gee mider krag
 Gedrewe rat draai stadiger maar gee meer krag.
Keelratstelsel

, Keelratstelsel in ‘n Keelratstelsel in ‘n
driedemensionele voorstelling tweedimensionele
Die ratstelsel verander die voorstelling.
rigting van bewegiging met
90°

Hoe om meganiese voordeel met ratte te
bereken
 Metode 1
 As jy weet hoeveel tande daar is.
Getal tande∈gedrewe rat
o MV =
Getaltande∈dryfrat
 Metode 2
 As jy nie weet hoeveel tande daar is
nie (2D SKETS)
Deursnee van gedrewe rat
o MV =
Deursnee van dryfrat

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