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R = Radius der Wendel (Abst. Perlenmittelpunkt-Achse) r = Perlenradius H = Wendelhöhe = 10 h

36°. R = Radius der Wendel (Abst. Perlenmittelpunkt-Achse) r = Perlenradius H = Wendelhöhe = 10 h n = 10 = Anzahl Perlen H/R = k (=3,4). R. Mittelachse. Perlen-Mittelpunkt. R. Außenachse. 36°. h. d = 2R sin(36°/2) = 2*0,309 R 4r 2 = d 2 +h 2 = 4R 2 sin 2 (18°) + h 2

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R = Radius der Wendel (Abst. Perlenmittelpunkt-Achse) r = Perlenradius H = Wendelhöhe = 10 h

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  1. 36° R = Radius der Wendel (Abst. Perlenmittelpunkt-Achse) r = Perlenradius H = Wendelhöhe = 10 h n = 10 = Anzahl Perlen H/R = k (=3,4) R Mittelachse Perlen-Mittelpunkt R Außenachse 36° h d = 2R sin(36°/2) = 2*0,309 R 4r2 = d2+h2 = 4R2 sin2 (18°) + h2 r2 = R2 sin2(18°) + h2/4 r2 = R2 sin2(18°) + H2/400 r2 = R2 (sin2(18°) + k2/400) = H2 (sin2(18°)/k2 + 1/400) r = k R (sin2(18°)/k2 + 1/400)½ = H (sin2(18°)/k2 + 1/400)½ mit k=3,4: r = 0,3527R = 0,10373H R = 2,835r H = 9,640r 2r d Außenachse Perlen-Mittelpunkt

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