MODELISATION-DES SYSTEMES - Tsi

March 7, 2023 | Author: Anonymous | Category: N/A
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\labglbs Agjustrabffbs

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 NGNFQ\B BZ MHJBFA\NZAHG MHJBFA\NZAHG JB\ \Q\ZBMB\ \Q\ZBMB\ FNGCNCB \ysMF ; A/ JBEAGAZAHG\ ; >.>  \Q\ZBMB ;

Rg systämb bst ug bgsbmofb jb lhmphsngts qua lhffnohrbgt à fn ránfasntahg j‑ug bgsbmofb jb tïldbs bg vub jb ehurgar ug bgsbmofb jb sbrvalbs, lbt bgsbmofb bst shumas à ug bgvarhggbmbgt jhggá bt agtbrncat nagsa nvbl ug shus-bgsbmofb jbs áfámbgts jb lbt bgvarhggbmbgt bgvarhggbmbgt.. Rg systämb bst ug bgsbmofb j‑áfámbgts, jb lhgstatungts, jb pbrshggbs, pbrs hggbs, ncbglás, hrcngasás, jngs fb out jb ráphgjrb à ug obshag. Af gb pbut y nvhar jb systämb sngs o obshag. bshag. «Rg obshag bst ugb gálbssatá, ug jásar áprhuvá pnr ug utafasntbur¹ . Bxbmpfbs ; thgjbusb à cnzhg áfbltraqub, narous .?  P_HJRAZ 

Fb prhjuat bst lb qua bst ehurga à f‑utafasntbur phur ráphgjrb à ug obshag. obshag. Rg  Rg prhjuat bst ug lhmprhmas bgtrb fb obshag ju lfabgt bt fbs lhgtrnagtbs agjustrabffbs. >. ? < : 2 5 3 4 1 >0

Ngnfysb jb obshag

Játbrmagbr fb obshag, bgquëtb, rálupárntahg j'agehrmntahgs (átujb jb mnrldá, átujb jb fn lhglurrbglb) Btujb jb enasnoafat enasnoafatáá Ajbgtaeabr fbs ehgltahgs, fbs lfnssbr, fbs daárnrldasbr, rájacbr fb LJLE. Lhglbptahg _bldbrldb jb shfutahgs, átujb jb shfutahgs, tbsts, prhthtypb bt bssnas. Ldhax j'ugb shfutahg. Jáeagatahg Pfngs, sldámns, lnflufs. Agjustranfasntahg Právhar fbs mhybgs eagnglabrs, mntárabfs bt dumnags Dhmhfhcntahgs  Nuthrasntahgs, fnobfs, lbrtaealnts, ncrám ncrámbgts. bgts. Prhjultahg Cárbr fn prhjultahg/lhmmngjbs, prhjultahg/lhmmngjbs, lhgtrúfb qunfatá, suava ju sthli bt npprhvasahggbmbgts. Lhmmbrlanfasntahg Bmonffbr, jastraoubr, puofalatá, vbgjrb. Rtafasntahg Mhjb j'bmpfha, cnrngtab, \.N.U, áldngcb, rbprasb Bfamagntahg _blylfbr, Unfhrasbr ágbrcátaqubmbgt, Játruarb, \thlibr. Pncb >

 

\labglbs Agjustrabffbs >.:  FB\ BLN_Z\ ;

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F‑átujb ju systämb s‑nppuab sur fb trangcfb suavngt ; suavngt ; Ldrhghfhcaqubmbgt, Ldrhghfhcaqubm bgt, bffb jáoutb pnr fn jáeagatahg ju systämb shudnatá, bffb sb phursuat pnr fn lhglbptahg gumáraqub ju systämb samufá puas npräs vnfajntahg pnr fb lhgtrúfb jbs álnrts bgtrb fbs pbrehrmng pbrehrmnglbs lbs samufábs bt fbs pbrehrmnglbs nttbgjubs. Bgeag, bffb pbrmbt bg pnssngt à fn ránfasntahg, ránfasntahg, j‑hotbgar fb systämb.

Fb out jbs \labglbs Agjustrabffbs jb f‑Agcágabur (bt jbs agjustrabfs) bt jb qungtaeabr bt mnçtrasbr f‑bgsbmofb jb lbs álnrts phur nttbagjrb fn sntasenltahg lfabgt fn pfus crngjb phssaofb.  phssaofb. 

>.2  MNZAB_B J‑şRU_B ;

Fn mntaärb j‑Ŝuvrb bst fn pnrtab jb f‑bgvarhggbmbgt ju systämb sur fnqubffb fn qubffb ncat fb systämb. Fn mntaärb j‑Ŝuvrb ávhfub à trnvbrs fb systämb j‑ug átnt agatanf à ug átnt eagnf. F‑átnt eagnf bst f‑átnt agatanf nucmbgtá jb fn Unfbur Nkhutáb

Mntaärb j‑Ŝuvrb shrtngtb = Mntaärb j‑Ŝuvrb bgtrngtb + Unfbur nkhutáb Bffb pbut ëtrb ; ugb ágbrcab, ugb mntaärb hu ugb agehrmntahg. Pncb ?

 

\labglbs Agjustrabffbs >.5  EHGLZAHG ;

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Rgb ehgltahg bst f‑nltahg nttbgjub j‑ug systämb bxpramáb bxlfusavbmbgt bg tbrmb jb eagnfatá .Ldnqub ehgltahg jhat ëtrb bxpramáb ehrmufáb pnr ug vbrob à f'ageagatae suava j'ug hu pfusaburs lhmpfámbgts . Hg jastagcub pfusaburs typbs jb ehgltahgs qua shgt bmpfhyábs hu ghg sbfhg fb typb j‑ngnfysb qub f‑hg enat ; >.5.> EHGLZAHG\ JB \B_UALB ;  Nltahgs nttbgjubs j‑ug systämb phur ráphgjrb à ug obshag. Bffbs ehgt fn vnfbur j‑ug prhjuat. J‑ug phagt jb vub lhglbptbur l hglbptbur,, fbs ehgltahgs jb sbrvalb sb rápnrtassbgt bg ; •Ehgltahg praglapnfb ; L‑bst fn ehgltahg bssbgtabffb ju prhjuat, bffb kustaeab sn lrántahg, Rg mëmb prhjuat pbut phssájbr pfusaburs ehgltahgs praglapnfbs •Ehgltahg lhgtrnagtb ; ehgltahgs lhmpfámbgtnarbs pnrtalufaärbs qua famatb fn faobrtá ju lhglbptbur. l hglbptbur. Lbttb famatb bst amphsáb pnr fb jbmngjbur, fb lhgtbxtb, jbs ghrmbs jb sáluratás, btl.… Agjápbgjnmmbgtt lbs ehgltahgs jb sbrvalb pbuvbgt ëtrb rápnrtabs nussa bg jbux lntáchrabs, l‑bst fb Agjápbgjnmmbg phagt jb vub utafasntbur ; •Ehgltahg j‑usncb ; faáb à f‑nspblt utafatnarb ju prhjuat. •Ehgltahg j‑bstamb ; faáb à f‑nspblt psyldhfhcaqub hu neebltae (bstdátasmb, amncb…). Bffbs shgt vhufubs bt jarbltbmbgt pbrãubs pnr fb lfabgt. >.5.? EHGLZAHG\ ZBLDGA^RB\ (« JB LHG\Z_RLZAHG ¹, « JB LHGLBPZAHG ¹); Ehgltahgs tbldgaqubs ; bffbs rásuftbgt j‑nltahgs agtbrgbs nu prhjuat bt jápbgjbgt jb fn lhglbptahg bt jbs shfutahgs tbldghfhcaqubs ldhasabs phur ránfasbr fbs ehgltahgs jb sbrvalb. Bffbs shgt fb pfus shuvbgt acghrábs pnr fb lfabgt.

  >.3 LHGZ_NAGZB\ ; shgt fbs jhggábs jb lhgtrúfb q ua ua jálfbgldbgt f‑nltavntahg hu lhgtrúfbgt fb systämb.  systämb.  

       







Bgbrcab ; áfbltraqub, pgbumntaq pgbumntaqub, ub, dyjrnufaqub, dumnagb… dumnagb…   Lhgeacurntahg ; prhcrnmmntahg j‑ug NPA hu hrjagntbur hrjagntbur   _ácfncb ; vatbssb, lhursb, pnrnmätrbs áfbltraqubs Bxpfhatntahg ; jhggábs hpárntbur bt mntárabf ; jápnrt lylfb, ránrmbmbgt, jálfbgldbmbgt j‑ug rbfnas…  rbfnas… 

>.4  UNFBR_ NKHRZBB NKHRZBB ;

Fb systämb bst jhgl ug cágárntbur jb prbstntahg, af rbgj ug sbrvalb bg ncassngt sur fn mntaärb j‑Ŝuvrb. j‑Ŝuvrb. Hg pbut lnrnltárasbr lb sbrvalb pnr fn vnfbur nkhutáb qu‑af npphrtb à fn mntaärb j‑Ŝuvrb  bgtrngtb phur jhggbr fn mntaärb j‑Ŝuvrb shrtngtb. j‑Ŝuvrb shrtngtb. Hg pbut álrarb jb mngaärb sldámntaqub;

Mntaärb j‑Ŝuvrb shrtngtb = Mntaärb j‑hbuvrb bgtrngtb + Unfbur nkhutáb   Lbttb vnfbur nkhutáb pbut oabg ávajbmmbgt prbgjrb jbs ehrmbs träs vnraábs, bg vhala qubfqubs bxbmpfbs;  MH mntaärb ágbrcab agehrmntahg

 UN

lhgstnglb jngs fb tbmps Eracajnarb nllumufntbur, onttbrab Amprambrab, lj rhm, favrb, jasqub jur

jápfnlbmbgt jngs f‑bspnlb   f‑bspnlb Crub, vhaturb facgb áfbltraqub, tuynu sntbffatb jb táfálhms, eaorb hptaqub

mhjaealntahg jb ehrmb usagb j‑nssbmofncb  j‑nssbmofncb  Bhfabggb, mll Lnptbur, mhjbm

>.1  FB\ PB_EH_MNGLB\ J‑RG \Q\ZBMB  ;

Af bst gálbssnarb jb prálasbr fn ehgltahg praglapnfb j‑ug systämb neag jb jáeagar sbs pbrehrmnglbs nttbgjubs.  Nux ehgltahgs hg hg nttraoub ; Pncb <

 

\labglbs Agjustrabffbs FQJBTXLPCB Lratärb(s); áldbffb rbtbgub (bx; fhgcubur, phajs, tbmps, lhufbur,...) phur npprálabr fn mngaärb jhgt ugb

ehgltahg bst rbmpfab. Gavbnu; gavbnu rbpárá jngs f‑áldbffb njhptáb phur ug lratärb (bx; ?0 lm, >2 ic, ...)  ...)  Efbxaoafatá; mhjufntahg thfáráb ju gavbnu (bx; à ?lm präs) AA / LN_NLZB_A\ZA^RB\ J‑RG \Q\ZBMB ;

Phur lnrnltárasbr ug systämb lhmpfbxb, af enut pránfnofbmbgt jáeagar sbs praglapnfbs lnrnltárastaqubs ; ?.>  LHGZBTZB ;

Fb lhgtbxtb ju systämb rbprásbgtb f‑bgvarhggbmbgt jngs fbqubf af s‑agsärb, j‑ug phagt jb vub träs cágárnf. Af s‑ncat jb jáeagar ; ;   “  fb  fb typb jb mafabu bgvarhggngt (mafabu mnrag, mafabu jhmbstaqub...),  “  fb jhmnagb j‑nppfalntahg (trngsphrt (trngsphrt,, málngaqub ncralhfb, áquapbmbgt, lhgjatahggbmbgt, bgsbacgbmbgt, ncrhnfambgtnarb, sphrt...),  “  fb  fb typb jb puofal utafasntbur (prhebssahgg (prhebssahggbf bf ju oïtambgt, pnrtalufabr, kbugbs...),  “  fb  fb gavbnu jb qunfatá pnr rnpphrt nux systämbs lhglurrbgts,  “  btl...  btl... ?.?  E_HGZAB_B J‑ÁZRJB;

Fn erhgtaärb j‑ug systämb bst ugb famatb rábffb hu ealtavb, pnrtncbngt f‑bgsbmofb jbs lhmphsngts lhgsajárás lhmmb nppnrtbgngt nu systämb ju rbstb, nppbfá mafabu bxtárabur. ?.
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