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-(CmaCIS + Cma) s(l),is - CmqCI)
(6.131)
Let Na.sy, and Aspo denote the determinantsin the numerator and the denominator
ofEq. (6.131). Expanding these determinants, we obtain
Na.spo = Aa.syosZ + BujpoS + Ca.spo . (6.132)
where
Aa,.*spo = Cza.lyl (6.133)
Bu,spo = Cm&(mi + CzqCI) - Cz8t Cmq Cl (6.134)
Ca,.spo = CmB,Cz0 (6.135)
and
SOTIl-Czcr)-Czcr -[S(ITIl+Czqc")+)Cz0]1 (6.136)
Aspo = -(CmaCIS + qrurr) s(l),is - Cmqd
J
= OIS3 + a2s2 + a3S + a4 (6.137)
where
ai - (mi - CzaCl)l).l (6.138)
a2 = -[Czalyl + Cmqci(mi - CzdtCl) + (nii + CzqCI)CmdlCI] (6.139)
a3 = Cza Cmq CI - [(ttl I + Czq CI)Cma + Cz0C",dicl ] (6.140)
a4 = -CZOCma (6.141)
The transfer function for pitch angle is given by
S(ITZI - CZd,CI) - Czcr
AO(s) -(C,nu + C,,,acis)
A8e =
Aspo(s)
(6.142)
AlRPLANE RESPONSE AND CLOSED-LOOP CONTROL 561
Expanding the numerator in Eq. (6.142), we get
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PERFORMANCE, STABILITY, DYNAMICS, AND CONTROL3(108)