* fichier : fsi5.dgibi ************************************************************************ ************************************************************************ * CAS TEST DU 91/10/04 PROVENANCE : PETI ******************************************* * Test fsi5.dgibi: jeux de données * * --------------------------------- * ******************************************* * SI GRAPH = N PAS DE GRAPHIQUE AFFICHE * SINON SI GRAPH DIFFERENT DE N TOUS * LES GRAPHIQUES SONT AFFICHES GRAPH = 'N' ; SAUT PAGE; SI (NEG GRAPH 'N') ; FINSI ; SAUT PAGE; ******************************************* * TEST FSI5 * * * * ANNULAR FLUID LAYER WITH FREE SURFACE * * * * Calculation of the frequencies of an * * annular water layer with free surface, * * for m= 1 * * The mean radius is 0.5m and the * * thickness of annulus is 5mm * * * * P5_________ * * | | * * | | * * | | * * | fluid | * * | | * * | | * * | | * * P6 ----------- * * * * The boundary conditions are * * * * dp | * * ---- | = 0. * * dz | h = 0. * * * * dp | * * ---- | = 0. * * dr | r = Ri , Ro * ******************************************* *=========================================* * geometry * *=========================================* * Dimensions en metres * Points THICK = 5.0 ; N1 = 20 ; R = 500. ; P5 = (R - (THICK * 0.5 )) 1000.0 ; P6 = (R - (THICK * 0.5 )) 0.0 ; S5 =P5 D N1 P6 ; * OPTIO FOR TRACE SI (NEG GRAPH 'N'); TITR ' FSI5 : MAILLAGE'; FINSI; *=========================================* * MODE - materiau - rigidite - masse * *=========================================* RHO 1.E-9 RORF 1.E-9 LCAR 1000. G 9810.; *=========================================* * boundary conditions * *=========================================* * No explicit boundary condition * the boundary conditions are natural * theoretical value of frequency FRE1 = 0.6922; *=========================================* * calculation of the frequencies * * and * * extraction of some results * *=========================================* * Use of the operator VIBR (option PROC) * Use of the operator VIBR (option IRAM) * opti impi 5; * opti impi 0; *=========================================* * results * *=========================================* MESS ' RESULTATS '; FRE2 = RESUL2 . MODES . 1 . FREQUENCE; ERG2 = 100 * (ABS ((FRE1 - FRE2 ) / FRE1 )); FRE3 = RESUL3 . MODES . 1 . FREQUENCE; ERG3 = 100 * (ABS ((FRE1 - FRE3 ) / FRE1 )); ' |' FORMAT '(F9.6)' FRE2 ' (' FORMAT '(F5.3)' ERG2 '%)' ' |' FORMAT '(F9.6)' FRE3 ' (' FORMAT '(F5.3)' ERG3 '%)'; MESS chacha; * mode shape extraction and optional trace SI (NEG GRAPH 'N'); MOD2 = RESUL2 . MODES . I . DEFORMEE_MODALE; FINSI; *=========================================* * code validation * *=========================================* ERG2MAX = ERG2 ; ERG3MAX = ERG3 ; SI (ERG2MAX > 4.5); FINSI; SI (ERG3MAX > 4.5); FINSI; TEMP; FIN;
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