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求助,编写的矩阵微分方程组,然后在运行的时候报错:错误使用 + 矩阵维度必须一致。之后我将式子中求导的项去掉了,然后仍然要求维度必须一致,请问这该如何解决。程序如下:
( _6 p: w5 t/ m* Dopt=odeset;opt.RelTol=1e-8;0 B7 @5 I" j9 X# A0 n* j
Tmh=0;Tmp=0;Mh=4100;Ihx=4032;Ihy=3461;Ihz=4980;Ihxy=31;Ihxz=637;Ihyz=26;Mp=1500;Ipx=117;Ipy=861;
3 x& H! F9 N5 j7 ?, I; rIpz=754;Ipxy=0.615;Ipxz=152;Ipyz=14.5;
9 e* L: h( z {' \7 ?9 r. j; K& Fg=9.81;xh=0.237;yh=0.013;zh=0.404;xp=0.5;yp=0;zp=0;xhp=0;yhp=0;zhp=0.96;xch=0;ych=0;zch=0.9;u=12*sin((pi/3)*t);3 L' y* j6 t. R8 R/ @
v=0;w=12*sin((pi/3)*t);
( g( F' H; x* L2 ]& [' ]p=12*sin((pi/3)*t);q=12*sin((pi/3)*t);r=12*sin((pi/3)*t);theta=12*sin((pi/3)*t);varphi=12*sin((pi/3)*t);Ch=100;Cp=90;Kp=100;
, [, ?$ O# T0 [7 b8 ?+ uA=p*cos(x(1))*cos(x(2))+q*sin(x(1))*cos(x(2))-r*sin(x(2));
8 Z2 y$ g/ u" k! f. ]' wB=p*cos(x(1))*sin(x(2))+q*sin(x(1))*sin(x(2))+r*cos(x(2));! l4 h* X7 m/ m! ~- s
E=-p*sin(x(1))+q*cos(x(1));( {5 Y: M- E( n1 u* _
F=p*cos(x(1))+q*sin(x(1));
* R+ E( @$ [, ye=-diff(p)*sin(x(1))+diff(q)*cos(x(1));2 v" f& Q% C" ]
f=diff(p)*cos(x(1))+diff(q)*sin(x(1));
% E/ r( J& b( V! ~4 Y, ETcwh=Mh.*xh.*(v+xch.*r-zch.*p+xh.*r-zh.*f)+Mh.*yh.*(u-r.*ych+q.*zch-r.*yh+zh.*e)+....: N$ z0 G$ H0 ?- c% S9 T
Mh.*zh.*F.*(u-r.*ych+q.*zch-r.*yh+zh.*E)+Mh.*zh.*E.*(v+r.*xch-p.*zch+r.*xh-zh.*F)-Mh.*xh.*F.*(w-q.*xch+p.*ych-E.*xh+yh.*F)..., t/ E0 \( C# \3 n7 ?/ u6 C
-Mh.*yh.*E.*(w-q.*xch+p.*ych-E.*xh+yh.*F)...
) r! R9 ]" Z: @& _ +Mp.*((diff(u)-diff(r).*ych+diff(q).*zch-diff(r).*yhp+zhp.*e).*(-yhp-cos(x(2)).*yp)+(diff(v)+xch.*diff(r)-zch.*diff(p)+...
& ~. U' i1 D- x7 A, A xhp.*diff(r)-zhp.*f+b.*xp-a.*zp).*(xhp+xp.*cos(x(2))+sin(x(2)).*zp)+(diff(w)-diff(q).*xch+diff(p).*ych-e.*xhp+yhp.*f-xp.*e+...$ z; p9 X4 \( P/ l: }6 G! o
yp^2.*sin(x(2)).*a)-((u-r.*ych+q.*zch-r.*yhp+zhp.*E-yp.*B+zp.*E).*(-(zhp+zp).*F-yp.*sin(x(2)).*E)+(v+r.*xch-p.*zch+r.*xhp-zhp.*F+...
& s' j( B+ G4 T" q# Y6 ^% Z5 U$ C xp.*B-zp.*A).*(-zhp.*E+xp.*sin(x(2)).*E-zp.*cos(x(2)).*E)+(w-q.*xch+p.*ych-E.*xhp+yhp.*F-xp.*E+yp.*A)*(xhp*F+yhp*E+xp*F+yp*cos(x(2))*E)))...; k4 y4 a' N: _% ^# q
+Ihxz*f+Ihyz*e+Ihz*diff(r)-Ihx*E*F+Ihy*E*F+Ihxy*F^2+Ihxy*E^2-Ihxz*r*E+Ihyz*r*F-Ipx*sin(x(2))*a+Ipz*cos(x(2))*b-...
1 c* z: O$ Z7 `& M- B d# m, u Ipxy*sin(x(2))*e-Ipxz*sin(x(2))^2*f+Ipxz*cos(x(2))*a+Ipyz*cos(x(2))*e-Ipx*cos(x(2))*E*A+Ipy*E*F-Ipz*A*E*sin(x(2))-...( Y3 u% f; g$ y$ a8 d% `9 ~5 Q
Ipxy*cos(x(2))*E^2+Ipxy*A*F-Ipxz*cos(x(2))*B*E-Ipxz*sin(x(2))*A*E+Ipyz*B*F-Ipyz*sin(x(2))*E^2;. V0 ~. X5 p: B" m
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