P.S.: f = 0,09, ρ´ = arctg (f / cos 150) = arctg (0,09 / cos 150) = 50 19´
tg γ = p/(πd2) γ ( ). ρ' = arctg(f /cos 15), tgρ' = f /cos 15. f 42.
6. z :
= Ψd2 z=H/p.
z>10, .
7. D
: ,
Fpac = 1,3F ( ); [σ] /2; D d2 . D .
8. D1
:
, , , . 7. = 0,25∙.
9. : η= tg γ / tg (γ + ρ').
10. ( )
l = (8...10)d, d .