... *d6*h + *(rng(6)2 rtr2) = 3,14*1110*290 + 3,14 *(5 502 1602) = 880 232 (mm2) Tng din tớch chu ỏp lc: S = S3 + S4 + S5 + S6 = 18 033 726,5 (mm2) + p sut lm vic: P =3 (at); vi (at) = 9,81*10^4 (N/m2) ... Uh = (1 5 20) + 15,7*0,16 = (1 7,4 22,4 ) (V) => Chn Uh =20 (V) - i vi que hn ng kớnh 4,0 (mm) => lhq = dq/2 = mm = 0,2 (cm) => Uh = (1 5 20) + 15,7*0,2 = (1 8,14 23,14 ) (V) => Chn Uh =23 (V) ... 3,2 (mm) => lhq = dq= 3.2 mm = 0,32 (cm) => Uh = (1 5 20) + 15,7*0,32 = (2 0 25) (V) => Chn Uh =22 (V) - i vi que hn ng kớnh 4,0 (mm) => lhq = dq = mm = 0,4 (cm) => Uh = (1 5 20) + 15,7*0,4 = (2 1.28...