資源簡介
利用MMG模型,描述船舶的旋回性,考慮風、浪、流的影響。
代碼片段和文件信息
%?%RungeKuttta4.m
%?
%?function?dy=MMG1(ty)
%?u=y(1);v=y(2);r=y(3);xg=y(4);yg=y(5);course=y(6);xB=0;%?xB?是漂心
%?%?Cr=(0.0067*u^4-0.166*u^3+1.553*u^2-6.3699*u+10.02)*10^(-3);
%?
%?
%?%假設
%?%?u=1;v=0.01;r=0.0001;
%?xC=0;%?xf?是浮心
%?
%?u0=13.5*1852/3600;%=0.6945
%?p=1.025;M=14278.12*p;Lw=124;B=20.8;dm=8;Cb=0.681;Cp=0.692;panbi=0.67;%盤面比
%?Vpai=14278.12;%排水體積
%?Dp=4.6;P=3.66;L=126;n=154/60;
%?zhanbi=1.72;%展鉉比
%?Ar=18.8;Hr=6.1;%舵高
%?mper=M/(0.5*p*L^2*dm);%mxper=0.0133;myper=0.2022;Jzzper=0.046;Izzper=0.0113;
%?%???=0.2248
%?V=(u^2+v^2)^0.5;
%?Izzper=(1+Cb^4.5)*p*M/24*(L^2+B^2)/(0.5*p*L^4*dm);??%?p145?楊論文
%?%?????=0.0116
%?%?mxper=mper/100*(0.398+11.97*Cb*(1+3.73*dm/B)-2.89*Cb*L/B*(1+1.113*dm/B)+0.175*Cb*(L/B)^2*(1+0.541*dm/B)-1.107*L/B*dm/B);?
%?%????=0.0133
%?mxper=0.0112;
%?
%?myper=1.129*mper*(0.882-0.54*Cb*(1-1.6*dm/B)-0.156*(1-0.673*Cb)*L/B+0.826*dm/B*L/B*(1-0.678*dm/B)-0.638*Cb*dm/B*L/B*(1-0.669*dm/B));
%?%????=0.2283
%?Jzzper=0.01*(33-76.85*Cb*(1-0.784*Cb)+3.43*L/B*(1-0.63*Cb))*mper/2.6;%0.0177
%?%?Jzzper=mper*(Jzz/L)^2;%?????=0.0094
%?
%?%計算Xuu
%???%計算Ct
%?????%計算水濕面積
%?%???????k=5.5;
%??????k=2.77;
%???????
%?????S=k*(Vpai*Lw)^0.5;%桑地公式p149楊
%?????%計算Cf?p151楊
%???????vv=1.18831*10^(-6);
%???????Rn=u*L/vv;%=7*10^8
%?????Cf1=0.066/(log10(Rn)-2.03)^2;%?Rn雷諾數
%?????Cf2=0.455/(log10(Rn))^2.58;
%?????Cf3=0.075/(log10(Rn)-2.03)^2;%=0.0016
%?????Cf4=0.455/(log10(Rn))^2.58-1700/Rn;
%?????Car=0.000362;
%?????Cr=(0.0067*V^4-0.166*V^3+1.553*V^2-6.3699*V+10.02)*10^(-3)*0.85/0.95;%=6*10^(-4)
%??%????Cr=(0.0067*V^4-0.166*u^3+1.553*u^2-6.3699*u+10.02)*10^(-3)
%???Ct4=Cf3+Cr+Car;%=0.0032
%???Ct=Ct4*1.001;
%?Xuu=-S/(L*dm)*Ct;%=-0.0089
%?Xvv=0.4*B/L-0.006*L/dm;%=-0.0285
%?Xrr=0.0005*L/dm;%=0.0079
%?Xvr=(1.11*Cb-0.07)*myper;%=0.1387
%?XH=Xuu*(u/u0)^2+Xvv*(v/u0)^2+Xvr*(v/u0)*(r*L/u0)+Xrr*(r*L/u0)^2;%?0--0.0123
%?
%?
%?%計算Xp=(1-tp)*T
%????%計算?tp?旋轉中的推力減額系數
%????????tp0=0.5*Cp-0.12;
%????????tp0per=0.04+(tp0-0.04)*u/u0;%=0.08--0.1
%????????lR=-0.95;
%????????pjiao=atan(-v/u);
%????????pjiaoR=pjiao-lR*r*L/u0;%pjiaoP=atan(-(v+lp*r)/u)?p109?楊
%?%?pjiaoR=atan(-(v+lR*r)/u);
%?
%??%?求?tp??p111?楊???????
%????????lcb=xC/L*100;
%????????rA=(B/dm)*(1.3*(1-Cb)-3.1*lcb);
%????????kt=0.00023*(rA*L/Dp)-0.028;%=-0.0212
%????????f=kt*pjiaoR;
%?????tp=tp0per-f;?%=-0.0173
%????%計算T=p*n^2*Dp^4*Kt
%??????%?Kt?Kq的計算
%?%???????pjiaoP=pjiao+0.5*L*r/V;
%??????lp=-0.5*L;
%?%???????pjiaoP=atan(-(v+lp*r)/u);%p109?楊
%?????????pjiaoP=pjiao+0.5*L/u0*r;%p104?人民交通出版社?操縱與耐波性??吳秀恒
%???????wp0=0.5*Cb-0.05?;?%?=0.2905?p105?楊
%???????wp=wp0*exp(-4*(pjiaoP)^2);%p104?人民交通出版社?操縱與耐波性??吳秀恒?=0.295
%???????J=(1-wp)*u/(n*Dp);%=?0.3818p148?楊?論文
%??????Kt=0.0821*J^3-0.2308*J^2-0.2768*J+0.3499;%=0.2918
%??????Kq=0.0085*J^3-0.027*J^2-0.0252*J+0.0416;%=0.0361
%?XP=(1-tp)*p*n^2*Dp^4*Kt/(p*L*dm*u0^2);%=0.0376--0.016
%?%計算?Xr=(1-tR)*Fn*sin(rudder)
%?????????%計算?Fn=-0.5*p*Ar*fa*Vr^2*sin(aR);
%???????????zx=-22.2*(Cb*B/L)^2+0.02*(Cb*B/
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件??????11160??2014-06-11?14:40??MMG\MMG1.m
?????文件???????2533??2014-06-11?14:40??MMG\new_MMG.m
?????文件??????26888??2014-06-11?14:40??MMG\z_type_rh.mdl
?????目錄??????????0??2014-06-11?14:42??MMG
-----------?---------??----------?-----??----
????????????????40581????????????????????4
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