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T^p chl TII, hi.)r vi\ Dif-u khidn ho, T28, Sl (2012), DANH GIA HIEU QUA PHU'ONG PHAP D A N CO L U O M G DON THAY DOI THICH NGHI THEO C H U Y I N D S N G CUA MUC TIEU NGUYfiN CONG DINH', T R A X NG(,)C II.\- NGUYEN NGUC KHOA^ ^Hqc vien A'// iJiiial Qiimi nf "^Vien Ky thug,t Phong khmuj-Khfiiuj quav Tom t i t Trong bai b ^ c ^ t RgP„ COS Cm + 2Dffm S€m§^ A/3„Ar 71^0 A/3„ < - ^ — ArCOS€n, Rg0m COS e„ + 2t)/3„ - 2/3m COS Em f^ - A f COS £ „ (2.3) DANH GlA HI$U QUA PHUONG P H A P DAN C I J / O N G D N THAY DOI 3 D A N H GIA H I E U Q U A P H U C J N G P H A P D A N " M " VTD ciia td hdp TLPK ddc trung cho kha ndng tieu di^t cai mijc lieu khde nhiing digu kien bdn nhat dinh vdi xac suat tieu digt niijc tieu cJio trUdc Hinh dang vd kich thudc ciia VTD ciia t6 hdp TLPK pliu thudc vdo nhieu yen to, dd cd phudiig phdp dan Gidi han VTD cua to hop TLPK ndi chung c6 hinh dang phUc tap va difiic xdc dinh bdi cac tham s6, bao gdm: Gidi han tren Hm^, gidi han dudi //miu, gidi han xa /?^,,, gidi hg,!) gan i?gan, tham so dudng bay gidi han Pmcix \MTheo [4], pliuong phap ddn se anh hudng nliieu tdi r:u- tham so gidi han xa, dd cao, iluun sd Pmax cua VTD md it anh hudng tdi cdc tliam so khde nhu gidi han gan, gidi ha" dudi Do dd, de ddnh gid hieu qua ciia phitdng phdp dan "M" in sc d.iiili gid su anh liudiig ciia chung tdi cac tham so //max^ R\& va Pmax ciia \ T D N^u ta coi HTDKTL Id ly tudiig, dd gidi han VTD cua td liqp TLPK chi phy thudc vdo cac tham sd ddng hpc va dUdc hi^u nhir la gidi haJi v^ mdt ndng lining md ten lua cdn cd kha nang dieu khien dUdc tren quy A^o tinh todn |4j, tUe Id GTPT yeu cdn dg ten Iiia chuydn dgng theo quy d^x) ddng phai nlid hdn GTPT t9,o dUdc ciia ten liia : dd W'k^y, ^fcnz 1^ GTPT yeu cdu cua tgn lUa, dUdc xdc dinh bdi phUdng phdp dan cung vdi tinh chdt chuyen dpng ciia muc tieu; W^y,d, Wztd Id GTPT tao duoc ciia ten lUa mdt phdng diing \-a mdt phdng ngang, dUdc xac dinh bdi tinh chat dpng luc hpc ciia ten lUa Dd xac dinh cac tham sd gidi han \'TD ciia td hdp TLPK dua tren quan he gifla GTPT tao dUdc vdi GTPT yeu cau ciia ten lUa, ta cdn thuc hien cdc ndi dung sau Thiet lap md hinli chuydn ddng ciia muc tigu khdng gian va xdc dinh cdc tham sd chuygn ddng nhu tpa do, van tdc, gia toe [3|; Xdc dinh GTPT va qua tai yeu can ciia ten lUa cdc mdt phdng ditng va mdt phdng ngang, cua cac phUdng phdp ddn "HC", "T/T" 'M" theo cdc tham so chuygn dong cua muc tieu [1, 2]; Xac dinh GTPT vd qua tai tao duoc ciia ten lUa lien quan tnic tiep den tinh chat dpng lUc hpc ciia ten lua |6]; Xdc dinh cac tham so gidi han R-^^., Rm^, Pmax, cila VTD dua tren quan he (3.4) GTPT tao dUdc ciia ten lu:a dUdc xdc dinh nhu sau: Y, Z la luc ndng va luc nghieng ben; m la trgng lupng ten lUa Dl dam bao cho kha ndng cd ddng ciia ten Ifla va bii khfl anh hudng cua luc d^y, cdc sai s6 thang gidng, tinh toan GTPT tao dudc cdn dua thgm he so suy giam ky va kz, cdc he so se anh hudng ddn cac gid tri Wy^d va Wz,d tUdng Ung Xghia la, GTPT tao dUdc NCllYEN ('l)K(l DINH,THAN NCiQC IIA, NdUVftN NGQO KHOA ciiii ten hia cftc ni?lt ph.^ng di'mg vii iiiSt plising ngang ttiWc xSc djnh theo c4c biSu thilc san: f 11/,, =I!YWYM, GTPT yen can ciin Icii lita dan tlico phitdng phap d?m T / I " duyr xfc dinh Ik |5, 6): H I , - r,„ + r ( c „ + Pi sinf,,, cosf,,), 111„: = -2rii,„ ro,se„, - r(/?mC08£„ - 2ft„f„sinem) GTPT veil rSii I im len lita dan theo phitong pliAp dan "IIC" ditdi- xic dinh Ift |5, 6|: { / A?'\ r r• • Ar\^ li'i,,., = " Vf " - ' " 1Ar/ - + 74Vft" ^ft"T^ Ar' sinetcosej, , , H = -.(A„-^„|) ,„,.,:(^„_^„|r)(,„_.„|)sin., dd I Ar ^ Ar (iTPT yeu cdu cua ten lUa ddn tlieo phuong phap .m, Hinh 3.3 a) Trong mdt phdng dflng b) Trong mdt phdng ngang Hinh chidu gidi han VTD cua to hpp TLPK trudng hdp muc tieu cd van tdc Vm = 600m/s vdn toe ldn (tren 600m/.5) thi kich thudc VTD phUdng phdp dan "M" ldn hon ddng kl so vdi phUdng phdp dan "HC" vd "T/T"; Trong phuOng phap dan "M" cac hg so gdc ddu cua hai mdt phdng didu khidn dUdc xac dinh dua tren cdc thdng tin tflc thdi ciia chu>en dgng muc tidu nhu: cu ly, tga gdc, vdn toe gde va gia tdc gdc, dd, trudng hgp mue tieu chuydn dgng bat ky ludn xdc dinh dupc cdc hd so gdc don mj, m^ tdi Uu dam bdo GTPT ygu cdu ciia tdn Ifla la nhd nhat Vi vdy, rdng ph^n vi bai bdo nidi chi dilng lai d viec danh gid hieu qua ciia phUdng phap dan "M" ddi vdi cac trudng hdp muc tieu cd ddng theo van tde, nhung eac trudng hpp muc tieu cd ddng thed hudng va toe dp gdc thi ciing cd the khdng dinh rdng phUdng phdp dan "M" se cd GTPT yen can ciia ten lua nho hdn so vdi cdc phUdng phap dan "T/T" vd "IIC" KfeT L U A N Vigc danh gid hidu qua phUdng phdp dan "M" qua cdc tham so eua VTD ciia td hdp TLPK i ehi nhflng uu didm ndi trpi so vdi cac phUdng phdp ddn truyen thdng khac nhu phUdng DANH GIA HIEU QUA PHUONG PHAP DAN C6 LUONG D6N THAY I)61 loVTDrtial phani] V (Pm = 0) Hinh 3.4 a) TVong mdt phdng dihig b) Trong mdt phdiig ngang Hinh chieu gidi han VTD cua td hpp TLPK trudng hpp mi,ic tieu cd vdn tdc Vm = 800m/s VTD mat phang Z (Hm = 10km) Hinh 3.5 a) Trong mat phang dflng b) Trong mat phing ngang Hinh chidu gidi han VTD ciia td hdp TLPK trudng hdp muc tieu cd van tdc Vjn = lOOOm/s phdp dan "T/T" vd phuong phap ddn "HC", d6 Id kha nang md rdng dUdc VTD cho td hop TLPK Kgt qua nghien cflu ciing eho ta thdy rdng: PhUdng phdp ddn "M" cd lupng ddn gdc xdc dinh theo tham sd chuydn ddng cua muc tieu vdi muc dich giam thidu dupc GTPT eiia tgn Ifla qud trinh dan, tflc la, quy dao tgn Ifla phUdng phap dan "M" se dupc ndn thdng hdn so vdi phudng phdp ddn '•nC" vd •T/T" Didu md kha ndng keo dai cu ly bay tieh cue eua ten lUa vd md rdng dUde VTD theo cU ly xa Ddng thdi, GTPT ygu cdu phudng phdp ddn "M" nhd hdn so vdi phUdng phap dan hien cd khac ngn ciing tao kha ndng md rdng VTD cho td hgp TLPK theo dp cao va tham so Pmax (do cdc tham so ehu ygu phu thudc vao qua tai tao dUdc cua ten Ifla) Ket qua xdc dinh VTD bdng md phdng mdy tinh ddi vdi cac phUdng phap ddn trinh bay d tren dd chflng minh dupc didu ndy; TU phuong trinh phUdng phap dlji "M" cdc bidu thflc (2.1)-(2.3) ta thay rdng, viec flng dflng phUdng phdp ddn "M' vdo td hgp TLPK la khdng qua phUc tap, chi cdn can thiep vdo he thong tao Ignh di^u khign nhd sfl dung thidt bi tinh todn tao cdc lUdng ddn tUdng flng 8 NGII^-f^N CONG niNII, 'I'IIAN M'.QC, HA, NGIJY&N NGOC KHOA TAI LIEU T H A M K H A O |lj Ti-tin Ngpc Ha Ngii\eii Ngpc Klioa, Nguyen Coiif^ Djiili, Xdc djnli lupng ddn toi Uu de dam bao gia l(Se phdp itiyeii ciia len Ifla nhd nlifil I;,ii dif^ni f;Ol>, T(j.j) chi Khoa fiQc va Ky thuat, Hpc viCn Kv lliii.)t Quan sfl, st'i 140 (4/2011) |2| Xf^iivi^ii (V)iij2, Djnh, NKineii Ngpc Klii);i, Ti'an Ngpc II.i, Khdo sdt phUPng phdp dan cy bay thich nghi theo ehuypn rlgng eiia myc tien, T(ip rhi Khoa liQc va Cong ngh^ Qudn si/, Vien Klioa liQc va Cong ngh^ Vi^t Nam, (8/2011) |3| Nt;uveii C'nii;^ Dmh Nf^iiyeii Ngpc Kho.i Trdn Ngpc Hd, Xay dflng md hinh todn va khao sdt cdc tham su (huv(^ii dniig cua inyc tif'u klidiif; gian Tap eld Nghi,c.n ci2u khoa hQC va cong nghe, Vi^n Khoa hgc va Cong nghf Qudn sy: (14) (08/2011) |4j did'/ thich quy tile 1)6.71 1,6 h(/p ten, I'iCa phong khong C-75M, S\B Quan dpi nhan dan, 1991 [5| Dam Hflu Nghi, Dan ten l^a phong khong co dieu khien, Hoi vicn Kv lliii.if Qudn sfl, 1991 |6] George M Siouris, Missdc Guidance and Control System.s, Springer Verlag, New York, 2004 Nhan bai 20 - IS - 2011 ... TVong |1, 2] cac tdc gia da trinh bay phUdng dn xay dimg phuong phdp ddn to lupng ddn thay ddi thich nghi theo chuyen ddng ciia muc tieu dd dam bao giam dupc tdi da GTPT ciia ten lUa qua trinh... Gdc nghieng ldn nhat ciia cdnh laj Qrmax — 4.5°; • Khoi lugng ten ifla h^t nhien lieu m = QGOkg Kgt hdp vdi cac gia thiet: D A N H G I A H I E U Q U A P H U O N G P H A P D A N CO LUONG DON THAY. .. Dfla treu cac tham sd ciia daJi ten hia vd then |4, G|, la xde duih dupe H\f thay ddi ciia GTPT tao dugc cua ten hi:a theo dp cao (Hinh :! 1} Bieu GTPT tao duoc cua ten lua 2LU ^^ • 1 -Alpha=1°
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