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LAMPIRAN. %Cn C2 = 2/((R3/R4)^2-1); C3 = 2/((R4/R5)^2-1); C4 = 2/((R5/R6)^2-1); C = [C2 C3 C4];

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Membagikan "LAMPIRAN. %Cn C2 = 2/((R3/R4)^2-1); C3 = 2/((R4/R5)^2-1); C4 = 2/((R5/R6)^2-1); C = [C2 C3 C4];"

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(1)

LAMPIRAN

Contoh langkah untuk mendapatkan Plot Kurva Isomerit pada optimasi O

bjective

Function

1 dengan variasi variabel L2 dan L3 :

1.

Langkah 1, menuliskan pada

M-file

Matlab seperti berikut:

function [objective3] = ConstructDiskObjectiveFunction3 (x) L1 =x(1); L2 =x(1), L3 =x(2), L4 =3; L5 =3; L6 =3;

%L1, L2, L3, L4, L5, L6 satuannya dalam inches

R2 = 6.0; %inches R3 = 5; R4 = 3.5; R5 = 2; R6 = 1.0; N = 100; % rpm

V = 1; % velocity, inch per sec nu = 0.3; % poisson ratio (v) rho = 0.284; % density

P2=0.0; % pressure at the outermost ring surface ,psi

P6=1001.0; % internal pressure at the bore, in this case P6=Pm P1=0; % external pressure at the periphery (P1 = P2)

%An A2 = (((3+nu)*rho*10^4)/4)*((R2/R2)^2-(R4/R2)^2); A3 = (((3+nu)*rho*10^4)/4)*((R3/R2)^2-(R5/R2)^2); A4 = (((3+nu)*rho*10^4)/4)*((R4/R2)^2-(R6/R2)^2); A = [A2 A3 A4]; %Bn B2 = (2*(R2/R3)^2)/((R2/R3)^2-1); B3 = (2*(R3/R4)^2)/((R3/R4)^2-1); B4 = (2*(R4/R5)^2)/((R4/R5)^2-1); B5 = (2*(R5/R6)^2)/((R5/R6)^2-1); B = [B2 B3 B4 B5]; %Cn C2 = 2/((R3/R4)^2-1); C3 = 2/((R4/R5)^2-1); C4 = 2/((R5/R6)^2-1); C = [C2 C3 C4]; %Dn D2 = (((1-nu)+(1+nu)*(R2/R3)^2)/((R2/R3)^2-1))+(L2/L3)*(((1+nu)+(1-nu)*(R3/R4)^2)/((R3/R4)^2-1)); D3 = (((1-nu)+(1+nu)*(R3/R4)^2)/((R3/R4)^2-1))+(L3/L4)*(((1+nu)+(1-nu)*(R4/R5)^2)/((R4/R5)^2-1));

(2)

D4 = (((1-nu)+(1+nu)*(R4/R5)^2)/((R4/R5)^2-1))+(L4/L5)*(((1+nu)+(1-nu)*(R5/R6)^2)/((R5/R6)^2-1)); D = [D2 D3 D4]; %Kn K2 = A2/C2; K3 = A3/C3; K4 = A4/C4; K = [K2 K3 K4]; %Un U2 = D2/C2; U3 = D3/C3; U4 = D4/C4; U = [U2 U3 U4]; %Qn Q2 = (B2/C2)*(L1)/L2; Q3 = (B3/C3)*(L2)/L3; Q4 = (B4/C4)*(L3)/L4; Q = [Q2 Q3 Q4];

P3_g =(200-rand(1,2)*(200-100));%initial guess for P3, 2 random numbers between 100-200

for n=1:2,

P4_g=(K2*(V^2))-(Q2*P2)+U2*P3_g(1,:); %calculation for P6

P5_g=(K3*(V^2))-(Q3*P3_g(1,:))+(U3*P4_g); %using initial guess of P3

P6_g=(K4*(V^2))-(Q4*P4_g)+(U4*P5_g); %to obtain linear equation for interpolation

end

%interpolation, using actual value of P6 to obtain correct value of P3

P3 = (((P6-P6_g(1,1))*(P3_g(1,2)-P3_g(1,1)))/(P6_g(1,2)-P6_g(1,1)))+P3_g(1,1);

%calculation of pressure for each interface

P4 = (K2*V^2)-(Q2*P2)+(U2*P3); P5 = K3*V^2-Q3*P3+U3*P4;

P6 = K4*V^2-Q4*P4+U4*P5; P = [P2 P3 P4 P5 P6],

%radial stress calculation for each interface

radial_stress3 = -((1+(L2/L3))*P3)/2; radial_stress4 = -((1+(L3/L4))*P4)/2; radial_stress5 = -((1+(L4/L5))*P5)/2; radial_stress6 = -((1+(L5/L6))*P6)/2;

radial_stress = [radial_stress3 radial_stress4 radial_stress5 radial_stress6];

%En

E2 = 1/((R2/R3)^2-1); E3 = 1/((R3/R4)^2-1);

(3)

E4 = 1/((R4/R5)^2-1); E5 = 1/((R5/R6)^2-1); E = [E2 E3 E4 E5]; F2 = (((((3+nu)*rho)*10^4)/4)*(R2/R2)^2)+(((1-nu) *rho*10^4)/4)*(R3/R2)^2; F3 = (((((3+nu)*rho)*10^4)/4)*(R3/R2)^2)+(((1-nu)*rho*10^4)/4)*(R4/R2)^2; F4 = (((((3+nu)*rho)*10^4)/4)*(R4/R2)^2)+(((1-nu)*rho*10^4)/4)*(R5/R2)^2; F5 = (((((3+nu)*rho)*10^4)/4)*(R5/R2)^2)+(((1-nu)*rho*10^4)/4)*(R6/R2)^2; F = [F2 F3 F4 F5]; %tangential stress (n) tangential_stress3=-(B2*(L3/L2)*P2)+((E2+(B2/2)-nu/2*(L2/L3))*P3)+F2*V^2; tangential_stress4=-(B3*(L4/L3)*P3)+((E3+(B3/2)-nu/2*(L3/L4))*P4)+F3*V^2; tangential_stress5=-(B4*(L5/L4)*P4)+((E4+(B4/2)-nu/2*(L4/L5))*P5)+F4*V^2; tangential_stress6=-(B5*(L6/L5)*P5)+((E5+(B5/2)-nu/2*(L5/L6))*P6)+F5*V^2;

tangential_stress = [abs(tangential_stress3) abs(tangential_stress4) abs(tangential_stress5) abs(tangential_stress6)],

%nilai tegangan tangensial maksimum

max_sigma_t = max(tangential_stress); %...(1)

%nilai tegangan tangensial minimum

min_sigma_t = min(tangential_stress); %...(2)

%objective3, max sigma(t) - min sigma(t) %substitusi dari persamaan (1) dan (2)

objective3 = (max_sigma_t - min_sigma_t), end

Save As M-file di atas dengan nama: ConstructDiskObjectiveFunction3.

2.

Langkah 2, menuliskan

constraints

kosong pada

M-file

baru:

function [c, ceq] = constraintL (x)

%Nonlinear inequality constraints

c = [];

%Nonlinear equality constraints

ceq = [];

Save As M-file di atas dengan nama: constraintL.

3.

Langkah 3, menuliskan batas atas, batas bawah, fungsi constraint (jika ada) dan

fungsi

fmincon

pada

M-file

baru:

(4)

clc

clear all

x0 = [0.7 0.7] % Make a starting guess at solution

f = ConstructDiskObjectiveFunction3 (x0)

%x = fmincon(fun,x0,A,b,Aeq,beq,lb,ub,nonlcon)

options = optimset ('Display', 'iter', 'PlotFcns', @optimplotfval); [x,fval] = fmincon (@ConstructDiskObjectiveFunction3, x0, [], [], [], [], [0.6 0.6], [4 4], @constraintL, options)

Jalankan eksekusi optimasi tersebut, dan akan keluar nilai

objective function

minimum

serta nilai L2 dan L3 yang optimum. Catat senua data pada tiap iterasi, yakni data L2,

L3 dan nilai fungsinya (digunakan pada langkah 6 untuk menunjukkan jalannya

optimisasi dari tebakan awal hingga tercapai optimum).

4.

Langkah 4, menuliskan pada

M-file

baru sebagai berikut:

function [objective3] = ConstructDiskObjectiveFunction3bwt_data (x, y) L1 =x; L2 =x; L3 =y; L4 =3; L5 =3; L6 =3; R2 = 6.0; %inches R3 = 5; R4 = 3.5; R5 = 2; R6 = 1.0; N = 100; % rpm

V = 1; % velocity, inch per sec nu = 0.3; % poisson ratio (v) rho = 0.284; % density

P2=0.0; % pressure at the outermost ring surface ,psi

P6=1001.0; % internal pressure at the bore, in this case P6=Pm P1=0; % external pressure at the periphery (P1 = P2)

%An A2 = (((3+nu)*rho*10^4)/4)*((R2/R2)^2-(R4/R2)^2); A3 = (((3+nu)*rho*10^4)/4)*((R3/R2)^2-(R5/R2)^2); A4 = (((3+nu)*rho*10^4)/4)*((R4/R2)^2-(R6/R2)^2); A = [A2 A3 A4]; %Bn B2 = (2*(R2/R3)^2)/((R2/R3)^2-1); B3 = (2*(R3/R4)^2)/((R3/R4)^2-1); B4 = (2*(R4/R5)^2)/((R4/R5)^2-1); B5 = (2*(R5/R6)^2)/((R5/R6)^2-1); B = [B2 B3 B4 B5]; %Cn C2 = 2/((R3/R4)^2-1); C3 = 2/((R4/R5)^2-1);

(5)

C4 = 2/((R5/R6)^2-1); C = [C2 C3 C4]; %Dn D2 = (((1-nu)+(1+nu)*(R2/R3)^2)/((R2/R3)^2-1))+(L2/L3)*(((1+nu)+(1-nu)*(R3/R4)^2)/((R3/R4)^2-1)); D3 = (((1-nu)+(1+nu)*(R3/R4)^2)/((R3/R4)^2-1))+(L3/L4)*(((1+nu)+(1-nu)*(R4/R5)^2)/((R4/R5)^2-1)); D4 = (((1-nu)+(1+nu)*(R4/R5)^2)/((R4/R5)^2-1))+(L4/L5)*(((1+nu)+(1-nu)*(R5/R6)^2)/((R5/R6)^2-1)); D = [D2 D3 D4]; %Kn K2 = A2/C2; K3 = A3/C3; K4 = A4/C4; K = [K2 K3 K4]; %Un U2 = D2/C2; U3 = D3/C3; U4 = D4/C4; U = [U2 U3 U4]; %Qn Q2 = (B2/C2)*(L1)/L2; Q3 = (B3/C3)*(L2)/L3; Q4 = (B4/C4)*(L3)/L4; Q = [Q2 Q3 Q4];

P3_g =(200-rand(1,2)*(200-100));%initial guess for P3, 2 random numbers between 100-200

for n=1:2,

P4_g=(K2*(V^2))-(Q2*P2)+U2*P3_g(1,:); %calculation for P6 P5_g=(K3*(V^2))-(Q3*P3_g(1,:))+(U3*P4_g); %using initial guess of P3

P6_g=(K4*(V^2))-(Q4*P4_g)+(U4*P5_g); %to obtain linear equation for interpolation

end

%interpolation, using actual value of P6 to obtain correct value of P3

P3 = (((P6-P6_g(1,1))*(P3_g(1,2)-P3_g(1,1)))/(P6_g(1,2)-P6_g(1,1)))+P3_g(1,1);

%calculation of pressure for each interface

P4 = (K2*V^2)-(Q2*P2)+(U2*P3); P5 = K3*V^2-Q3*P3+U3*P4;

P6 = K4*V^2-Q4*P4+U4*P5; P = [P2 P3 P4 P5 P6];

%radial stress calculation for each interface

radial_stress3 = -((1+(L2/L3))*P3)/2; radial_stress4 = -((1+(L3/L4))*P4)/2;

(6)

radial_stress5 = -((1+(L4/L5))*P5)/2; radial_stress6 = -((1+(L5/L6))*P6)/2;

radial_stress = [radial_stress3 radial_stress4 radial_stress5 radial_stress6]; %En E2 = 1/((R2/R3)^2-1); E3 = 1/((R3/R4)^2-1); E4 = 1/((R4/R5)^2-1); E5 = 1/((R5/R6)^2-1); E = [E2 E3 E4 E5]; F2 = (((((3+nu)*rho)*10^4)/4)*(R2/R2)^2)+(((1-nu)*rho*10^4)/4)*(R3/R2)^2; F3 = (((((3+nu)*rho)*10^4)/4)*(R3/R2)^2)+(((1-nu)*rho*10^4)/4)*(R4/R2)^2; F4 = (((((3+nu)*rho)*10^4)/4)*(R4/R2)^2)+(((1-nu)*rho*10^4)/4)*(R5/R2)^2; F5 = (((((3+nu)*rho)*10^4)/4)*(R5/R2)^2)+(((1-nu)*rho*10^4)/4)*(R6/R2)^2; F = [F2 F3 F4 F5]; %tangential stress (n) tangential_stress3=-(B2*(L3/L2)*P2)+((E2+(B2/2)-nu/2*(L2/L3))*P3)+F2*V^2; tangential_stress4=-(B3*(L4/L3)*P3)+((E3+(B3/2)-nu/2*(L3/L4))*P4)+F3*V^2; tangential_stress5=-(B4*(L5/L4)*P4)+((E4+(B4/2)-nu/2*(L4/L5))*P5)+F4*V^2; tangential_stress6=-(B5*(L6/L5)*P5)+((E5+(B5/2)-nu/2*(L5/L6))*P6)+F5*V^2;

tangential_stress = [abs(tangential_stress3) abs(tangential_stress4) abs(tangential_stress5) abs(tangential_stress6)];

%nilai tegangan tangensial maksimum

max_sigma_t = max(tangential_stress); %...(1)

%nilai tegangan tangensial minimum

min_sigma_t = min(tangential_stress); %...(2)

%objective3, max sigma(t) - min sigma(t) %substitusi dari persamaan (1) dan (2)

objective3 = (max_sigma_t - min_sigma_t);

end

Save As dengan nama file :

ConstructDiskObjectiveFunction3bwt_data

.

5.

Langkah 5, menuliskan pada

M-file

baru sebagai berikut:

clc

clear all

x=[0.25:0.25:5];% Make a starting guess at solution

y=[0.25];

for n=1:20

[f(n)] = ConstructDiskObjectiveFunction3bwt_data (x(n),y);

(7)

Jalankan program di atas, kemudian lihat pada Workspace, klik kiri dua kali pada f.

Terdapat 20 data yang muncul di sana, copy pada excel. Kemudian ulangi langkah 5

dengan mengganti nilai y = 0.25 sampai 5. Lakukan langkah yang sama untuk

mengcopykan data ke excel, sehingga didapat data seperti berikut:

Gambar A

Data objective function 1.

Gambar A tersebut hanya sebagian data saja (karena datanya terlalu panjang, sebagian

data tidak penulis munculkan).

6.

Langkah 6, menuliskan pada

M-file

baru sebagai berikut:

clc clear all x = [0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5; 0.25:0.25:5]; y = x'; z =[16539.31255 14276.91794 12235.45734 10384.07445 8697.403333 7154.39929 7434.678239 8010.465258 8542.764282 9036.32286 9495.221759 9922.988051 11134.42487 12357.54697 12539.61864 12226.61846 11931.7736 11983.21473 12260.69824 12523.37484 8483.034169 7496.999434 6569.940144 5696.718889 4872.778123 4124.489732 4484.716703 4826.200802 5150.367747 5458.502229 y. x 0.25 0.5 0,75 1 1,25 1,5 1,75 2 2,25 2,5 2,75 3 3,25 3,5 3,75 4 4,25 4,5 4,75 5 0,25 16539,31 14276,91794 12235,46 10384,07 8697,403 7154,39929 7434,678 8010,465 8542,764 9036,32286 9495,222 9922,988 11134,42 12357,55 12539,62 12226,62 11931,77 11983,21 12260,7 12523,37 0,5 8483,034 7496,999434 6569,94 5696,719 4872,778 4124,489732 4484,717 4826,201 5150,368 5458,502229 5751,765 6031,207 6650,847 7426,36 8167,738 8280,427 8133,463 7992,567 7857,371 7867,849 0,75 5723,873 5108,36504 4521,074 3960,103 3423,721 3036,563916 3272,567 3498,864 3716,041 3924,638048 4125,154 4318,051 4650,935 5202,662 5734,551 6247,655 6371,467 6275,6 6182,949 6093,354 1 4335,494 3893,429895 3468,37 3059,351 2665,482 2426,966645 2592,659 2752,537 2906,902 3056,033832 3200,194 3339,627 3502,598 3921,836 4327,973 4721,612 5103,321 5274,209 5201,363 5130,628 1,25 3502,865 3160,752198 2830,216 2510,679 2201,601 2025,104136 2146,11 2263,34 2376,969 2487,159589 2594,066 2697,834 2798,598 3079,791 3402,649 3716,55 4021,864 4318,938 4553,399 4493,294 1,5 2950,029 2672,695149 2403,855 2143,124 1890,14 1890,222622 1915,858 1940,764 1996,36 2079,357831 2160,092 2238,652 2315,126 2477,913 2741,848 2999,041 3249,748 3494,212 3732,661 3965,317 1,75 2557,668 2325,615182 2100,115 1892,408 1922,111 1951,010596 1979,137 2006,522 2033,194 2059,180885 2084,508 2109,201 2133,283 2173,4 2360,878 2543,883 2722,573 2897,099 3072,503 3268,236 2 2265,781 2067,096717 1910,636 1942,82 1974,177 2004,738025 2034,534 2063,592 2091,941 2119,604758 2146,609 2172,976 2198,729 2223,889 2352,589 2517,318 2678,379 2835,894 2989,979 3140,744 2,25 2040,906 1921,88339 1955,968 1989,216 2021,657 2053,320353 2084,234 2114,424 2143,915 2172,731802 2200,897 2228,432 2255,359 2281,696 2349,361 2499,466 2646,392 2790,239 2931,103 3069,075 2,5 1928,234 1963,799485 1998,525 2032,44 2065,573 2097,950897 2129,599 2160,541 2190,801 2220,401353 2249,363 2277,707 2305,452 2332,618 2359,222 2487,733 2623,053 2755,659 2885,631 3013,049 2,75 1967,776 2003,669683 2038,754 2073,057 2106,604 2139,419218 2171,527 2202,95 2233,709 2263,825645 2293,32 2322,21 2350,516 2378,254 2405,441 2480,423 2606,028 2729,212 2850,043 2968,589 3 2005,715 2041,734689 2076,976 2111,464 2145,222 2178,274046 2210,641 2242,345 2273,405 2303,840589 2333,671 2362,914 2391,587 2419,706 2447,287 2476,382 2593,725 2708,886 2821,924 2932,899 3,25 2042,18 2078,178721 2113,428 2147,953 2181,774 2214,912708 2247,39 2279,225 2310,438 2341,044737 2371,064 2400,513 2429,407 2457,762 2485,592 2512,913 2585,022 2693,26 2799,567 2903,996 3,5 2077,28 2113,1482 2148,297 2182,747 2216,519 2249,633088 2282,108 2313,963 2345,215 2375,8806 2405,977 2435,519 2464,522 2493,001 2520,97 2548,442 2579,107 2681,303 2781,731 2880,438 3,75 2111,106 2146,763143 2181,728 2216,021 2249,66 2282,665276 2315,053 2346,842 2378,047 2408,68445 2438,77 2468,319 2497,344 2525,861 2553,881 2581,419 2608,486 2672,25 2767,494 2861,15 4 2143,738 2179,124408 2213,845 2247,917 2281,361 2314,191624 2346,427 2378,083 2409,175 2439,718013 2469,726 2499,214 2528,194 2556,68 2584,684 2612,219 2639,295 2665,925 2756,155 2845,317 4,25 2175,248 2210,318488 2244,748 2278,553 2311,752 2344,359913 2376,393 2407,866 2438,793 2469,189309 2499,068 2528,441 2557,323 2585,725 2613,659 2641,136 2668,169 2694,766 2747,178 2832,309 4,5 2205,7 2240,420782 2274,525 2308,027 2340,945 2373,292248 2405,084 2436,335 2467,058 2497,266765 2526,974 2556,192 2584,933 2613,209 2641,03 2668,408 2695,353 2721,875 2747,984 2821,634 4,75 2235,15 2269,497909 2303,251 2336,424 2369,033 2401,091238 2432,613 2463,611 2494,099 2524,089003 2553,593 2582,624 2611,191 2639,307 2666,981 2694,225 2721,048 2747,46 2773,47 2812,901 5 2263,652 2297,609377 2330,993 2363,818 2396,097 2427,844381 2459,073 2489,796 2520,025 2549,771793 2579,048 2607,865 2636,233 2664,162 2691,663 2718,746 2745,419 2771,693 2797,575 2823,076

(8)

5751.764935 6031.207148 6650.846687 7426.35978 8167.73849 8280.426845 8133.462958 7992.567091 7857.371031 7867.848963 5723.87297 5108.36504 4521.073931 3960.102799 3423.721092 3036.563916 3272.567275 3498.863958 3716.040744 3924.638048 4125.154418 4318.050506 4650.935495 5202.661761 5734.551399 6247.655319 6371.467325 6275.600288 6182.948808 6093.353769 4335.494207 3893.429895 3468.369626 3059.35082 2665.482205 2426.966645 2592.659171 2752.537434 2906.902198 3056.033832 3200.194015 3339.627262 3502.597816 3921.836408 4327.972812 4721.611788 5103.321444 5274.209214 5201.36296 5130.628338 3502.864886 3160.752198 2830.216218 2510.679107 2201.600854 2025.104136 2146.109627 2263.339808 2376.968649 2487.159589 2594.066327 2697.833534 2798.597505 3079.791269 3402.648517 3716.550397 4021.864417 4318.938245 4553.399048 4493.294387 2950.02924 2672.695149 2403.85469 2143.123558 1890.140289 1890.222622 1915.858034 1940.764172 1996.359669 2079.357831 2160.091502 2238.652109 2315.126224 2477.913158 2741.847865 2999.04129 3249.748449 3494.211658 3732.661307 3965.316594 2557.667845 2325.615182 2100.115062 1892.40758 1922.111425 1951.010596 1979.137353 2006.522257 2033.194274 2059.180885 2084.508174 2109.200918 2133.282669 2173.400103 2360.877829 2543.882655 2722.572769 2897.098984 3072.503077 3268.235712 2265.780862 2067.096717 1910.635898 1942.819754 1974.17664 2004.738025 2034.533802 2063.592384 2091.940796 2119.604758 2146.608762 2172.976146 2198.729161 2223.889032 2352.589017 2517.317767 2678.379178 2835.894369 2989.979187 3140.744483 2040.905898 1921.88339 1955.968131 1989.215808 2021.656882 2053.320353 2084.233849 2114.423704 2143.915033 2172.731802 2200.896893 2228.432166 2255.358512 2281.695909 2349.360697 2499.465612 2646.391642 2790.238713 2931.102602 3069.075159 1928.23444 1963.799485 1998.524939 2032.440187 2065.573256 2097.950897 2129.598654 2160.540932 2190.801061 2220.401353 2249.363157 2277.706911 2305.45219 2332.617752 2359.221577 2487.73272 2623.052634 2755.658549 2885.631303 3013.048556 1967.776042 2003.669683 2038.754367 2073.057138 2106.603847 2139.419218 2171.526908 2202.949566 2233.708883 2263.825645 2293.319778 2322.210392 2350.515825 2378.253677 2405.44085 2480.42287 2606.028006 2729.21162 2850.043068 2968.589085 2005.714934 2041.734689 2076.976037 2111.463941 2145.222309 2178.274046 2210.641108 2242.344554 2273.404584 2303.840589 2333.671188 2362.914267 2391.587012 2419.705948 2447.286967 2476.382476 2593.725134 2708.885636 2821.92429 2932.899204 2042.180359 2078.178721 2113.428492 2147.952784 2181.773764 2214.912708 2247.390039 2279.225377 2310.43757 2341.044737 2371.064302 2400.513025 2429.407034 2457.761858 2485.592448 2512.913211 2585.021979 2693.259526 2799.567299 2903.996452 2077.27997 2113.1482 2148.296591 2182.746596 2216.518826 2249.633088 2282.108425 2313.963152 2345.21489 2375.8806 2405.976613 2435.518658 2464.521891 2493.000918 2520.969826 2548.442198 2579.106707 2681.302564 2781.731184 2880.438016 2111.105807 2146.763143 2181.728166 2216.020844 2249.660387 2282.665276 2315.053305 2346.841607 2378.046688 2408.68445 2438.770228 2468.318803 2497.344438 2525.860893 2553.881449 2581.418931 2608.485724 2672.250072 2767.493575 2861.149809 2143.738157 2179.124408 2213.844591 2247.917336 2281.360586 2314.191624 2346.427111 2378.083104 2409.175092 2439.718013

(9)

2469.726285 2499.213825 2528.19407 2556.68 2584.684155 2612.218655 2639.295216 2665.925168 2756.15546 2845.316577 2175.24814 2210.318488 2244.747729 2278.553283 2311.751945 2344.359913 2376.392813 2407.865724 2438.793204 2469.189309 2499.067618 2528.441249 2557.322882 2585.724776 2613.658786 2641.136378 2668.168648 2694.766335 2747.178131 2832.30902 2205.699517 2240.420782 2274.524647 2308.027437 2340.944902 2373.292248 2405.084161 2436.334825 2467.057944 2497.266765 2526.974095 2556.192319 2584.933417 2613.208982 2641.030233 2668.408032 2695.352899 2721.875021 2747.984271 2821.634187 2235.149999 2269.497909 2303.250924 2336.424367 2369.033037 2401.091238 2432.612789 2463.611056 2494.09896 2524.089003 2553.593282 2582.623503 2611.191001 2639.306752 2666.981388 2694.225207 2721.048194 2747.460023 2773.470077 2812.900898 2263.652209 2297.609377 2330.993006 2363.817506 2396.096807 2427.844381 2459.073259 2489.79605 2520.024956 2549.771793 2579.048 2607.864659 2636.232505 2664.161944 2691.663059 2718.74563 2745.419138 2771.692783 2797.575489 2823.075916]; %batas bawah hold on; m = [0.25; 5]; n = [0.6; 0.6]; plot (m, n,'-k'); hold on; o = [0.6; 0.6]; p = [0.25; 5]; plot (o, p,'-k'); %batas atas hold on; q = [4; 4]; r = [0.25; 5]; plot (q, r,'-k'); hold on; s = [5; 0.25]; t = [4; 4]; plot (s, t,'-k'); %iterasi optimasi hold on; a = [0.7000;4.0000;3.5101;2.0550;1.3275;1.4775;1.4775;1.4922;1.4931; 1.4914;1.4357;1.4340;1.4275;1.4273;1.4272;1.4272;1.4272;1.4276;1.4282; 1.4282;1.4353]; b = [0.7000;4.0000;4.0000;2.3000;1.4500;1.3969;1.3969;1.3844;1.3829 ;1.3814;1.3688;1.3697;1.3682;1.3681;1.3681;1.3681;1.3681;1.3678;1.3673 ;1.3672;1.3612]; plot (a, b,':k'); hold on; c = [0.7000;1.4353];

(10)

d = [0.7000;1.3612]; plot (c, d,'+k'); hold on; e = [2.0000;1.6500;1.3875;1.4315;1.4321;1.4268;1.4207;1.4272;1.4277 ;1.4295;1.4297;1.4297;1.4297;1.4297;1.4297;1.4297;1.4297;1.4297]; f = [2.0000;1.6500;1.3875;1.3629;1.3835;1.3782;1.3721;1.3761;1.3744 ;1.3684;1.3676;1.3675;1.3675;1.3675;1.3675;1.3675;1.3675;1.3675]; plot (e, f,':r'); hold on; g = [2.0000;1.4297]; h = [2.0000;1.3675]; plot (g, h,'+r'); hold on; i = [1.0000;0.8000;0.7875;0.7846;0.7838;0.7838;0.7838;0.7838;0.7838; 1.154 ;1.3694;1.4234;1.4266;1.4274;1.4278;1.4279;1.4279;1.4280]; j = [3.5000;2.0500;1.9594;1.9381;1.9329;1.9326;1.9324;1.9324;1.9324; 1.5993;1.4064;1.3579;1.3550;1.3543;1.3539;1.3538;1.3538;1.3537]; plot (i, j,':g'); hold on; k = [1.0000;1.4280]; l = [3.5000;1.3537]; plot (k, l,'+g');

Save As program di atas dan jalankan.

7.

Langkah 7, menuliskan pada

Command Window: >> contour (x,y,z)

Kemudian untuk menampakkan garis proses jalannya optimasi dari tebakan awal

hingga tercapai optimum, Run kembali

M-file

pada langkah 6.

(11)

Gambar

Gambar A tersebut hanya sebagian data saja (karena datanya terlalu panjang, sebagian  data tidak penulis munculkan)
Gambar B Hasil plot kurva isomerit.

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