Figura plaska
Odcinek koła
xę°
A = —
2 i 180
sin <p r(b-s) + sh
, 3 . 3 <P
s3 2 r sm 7
12/1 3 A
ex = em - rcos —,
s h r = — + —.
8 h 2
Długość tuku
b = nr-=
180°
= 0,01745^,
ip s
tg — ---
2 2(r - h)
2rsin— = 2^h(2r - h), 2
h = r 1 - cos-
’ = Vr2 - z2 -(r-h)
Wycinek kola
. b ■
r= ■
hr <p° 2
-4 = — =-r TT,
2 360”
b = długość luku
b = rn^_ = 180"
= 0,01745np, 180” b
n r
2 s
e, = — r • — =
2 . <p 360° r r's
3 2 <p° tt 3A
Ćwiartka kola
= 0,4244 r = 0,5756 r = 0,6002 r = 0,7071 r
= 0, 2234 r = 0,7766 r = 1,0983 r = 0,7071 r = 0,3159 r = 0,3912 r
W
' 16 90°
20 /(l - cos<p) 7rp°-180°sin <p
y 48 ( 30°
A = 8 sin <p - sin 2<p
W=-
h-ex
2/,.
360° . 2 (p 4r
Iv = /r---sin---
2 9
ęr n ^ r
tt--sin ę
180"
W
i. =
tt--sin ę
180°
l„ = /,, = 0,05488 r lh = /, = 0,1963 /
/{ = 0,07135 /, /, = 0,03841 /
I = 0,01647 r , L, = —
xy 7 ”r 8
W, = W,, = 0,09534 r W? = 0,1009 /
W„ = 0,06399 r
/, = Iy = 0,00755 r /*=/,= 0,1370 / l( = 0,011980 / , /„ = 0,003105/
4
/„ = 0,00444 /, /. = — = 0,125 / 8
W, = lVv = 0,00972 r W( = 0,016950 r
Wn = 0,001937 r
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