它总是令人沮丧的问题时问整个代码不提供:
所以答案是preallocate和索引的lh循环迭代器或计数器。
表达左边的等号不是一个有效的目标为一个任务。
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我得到这个错误而运行脚本
Kxa0 = bta_0 (1) * 12 * E * Ixx / H ^ 3;
在一个循环中。循环变化bta_0数组的值。这是一个4 X1的数组。所有其他符号包括Kxa0双打。
我不明白为什么这该给我一个错误的分配错误。
有人能帮忙吗?
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答案(1)
madhan拉维
2019年1月3日
编辑:madhan拉维
2019年1月3日
3评论
siddhesh godbole
2019年1月3日
嗨Madhan,非常感谢及时回应。整个代码长600行,这就是为什么我没有提供在这里。
我做了索引和循环计数器变量,预先分配valriable。这个问题仍然存在。
在以下代码中,您可以找到这个任务在“系统参数-刚度矩阵”。我更新目前只有一个,看看问题传播到其他作业但是代码显示在同一行错误再次告诉我,这不是解决。
你认为会是什么原因,如果它吗?
Kxa0 = 0(长度(t), 1) + bta_0 (1) * 12 * E * Ixx / H ^ 3;
为i = 1:(长度(t) 1)
% i = 1:1
% %跟踪(COM)板式住宅系统的质量中心关于位于坐标系统
%的中心建筑计划
COMx0 = (d(我)* M0 + P(我)* alpha0 * M0) / (M0 + alpha0 * M0);
COMy0 = (d(我)* M0 + P(我)* alpha0 * M0) / (M0 + alpha0 * M0);
COMx1 = (d(我)* M1 + P(我)*α1 * M1) / (M1 +α1 * M1);
COMy1 = (d(我)* M1 + P(我)*α1 * M1) / (M1 +α1 * M1);
COMx2 = (d (7, i) * M2 + P(我)* alpha2 * M2) / (M2 + alpha2 *平方米);
我COMy2 = (d(8日)* M2 + P(我)* alpha2 * M2) / (M2 + alpha2 *平方米);
COMx3 = (d(11,我)* M3 + P(7,我)* alpha3 * M3) / (M3 + alpha3 * M3);
我COMy3 = (d(12日)* M3 + P(我)* alpha3 * M3) / (M3 + alpha3 * M3);
% %计算如果建筑计划内的点是为特定的地板上
%这改变质量矩阵根据块是否还在
%的表面板或下滑
[O0] = Inout (d(我)、d(我)、d(我),COMx0, COMy0, P(我)、P(我),L, B);
如果O0 = = 1
alpha0 = 1;
其他的
alpha0 = 0;
结束
(O1群)= Inout (d(我),d(我)、d(6,我),COMx1, COMy1, P(我)、P (4, i), L, B);
如果O1 = = 1
α1 = 1;
其他的
α1 = 0;
结束
(O2) = Inout (d(7,我)、d(8,我)、d(9,我),COMx2, COMy2, P(我)、P(我),L, B);
如果O2 = = 1
alpha2 = 1;
其他的
alpha2 = 0;
结束
(O3) = Inout (d(10,我)、d(11,我)、d(12,我),COMx3, COMy3, P (6, i), P (7, i), L, B);
如果O3 = = 1
alpha0 = 1;
其他的
alpha0 = 0;
结束
% %每个列分析的力量
% G层列
x0 = 0 (4,1) + d (1,);%的数组x-displacements COM
y0 = 0 (4,1) + d(我);%的数组y-displacements COM
r0 = 0 (4,1) + d(我);%的旋转COM的数组
x1 = 0 (4,1) + d(我);%的数组x-displacements COM
日元= 0 (4,1)+ d(我);%的数组y-displacements COM
r1 = 0 (4,1) + d(6,我);%的旋转COM的数组
x2 = 0 (4,1) + d(7,我);%的数组x-displacements COM
y2 = 0 (4,1) + d(8,我);%的数组y-displacements COM
r2 = 0 (4,1) + d(9,我);%的旋转COM的数组
x3 = 0 (4,1) + d(10,我);%的数组x-displacements COM
y3 = 0 (4,1) + d(11,我);%的数组y-displacements COM
r3 = 0 (4,1) + d(12,我);%的旋转COM的数组
残雪= L / 2 * (1, 1, 1, 1);
cy = B / 2 * (1, 1, 1, 1);
%输入V_any (X-Velocity COM, COM的速度,角速度
%的COM, POI的坐标,纵坐标POI的未变形的配置)
[Dx0, Dy0] = D_any (x0, y0, r0、残雪、cy);%计算Dx [4 x1) . .列的畸形的配置
[Dx1,₁] = D_any (x1, y1, r1,残雪,cy);%计算Dx [4 x1) . .列的畸形的配置
[Dx2, Dy2] = D_any (x2, y2, r2,残雪,cy);%计算Dx [4 x1) . .列的畸形的配置
[Dx3, Dy3] = D_any (x3, y3, r3,残雪,cy);%计算Dx [4 x1) . .列的畸形的配置
%计算列压力和紧张
%位移输入X, Y位移,旋转的列
%的兴趣,列的高度
[Stress0, Strain0] = Stressfunction (Dx0、Dy0 r0, H, G, Lc, Bc);%压力[4 x6]的[ZX压力、压力ZY扭矩XY,应变ZX,应变ZY腐烂应变XY)每个4 x1条目
[Stress1, Strain1] = Stressfunction (Dx1₁, r1 H G, Lc, Bc);
[Stress2, Strain2] = Stressfunction (Dx2 Dy2, r2, H, G, Lc, Bc);
[Stress3, Strain3] = Stressfunction (Dx3 Dy3, r3, H, G, Lc, Bc);
%检查任何列收益率根据·冯·米塞斯应力衡准
% G水平
为2 = 1:4
如果StressYield2 > =√3 * Stress0 (2, 1) ^ 2 + Stress0 (2, 2) ^ 2 + Stress0 (2, 3) ^ 2)) > StressYield1 * 10 ^ 6
bta_0 (ii, i) = 0.7;% beta_a0是一个弹性模量系数列a G的水平(以0)
elseif√3 * Stress0 (2, 1) ^ 2 + Stress0 (2, 2) ^ 2 + Stress0 (2, 3) ^ 2)) > StressYield2 * 10 ^ 6
bta_0 (ii, i) = 0.3;
其他的
bta_0 (ii, i) = 1;
结束
结束
% 1级
为2 = 1:4
如果StressYield2 > =√3 * Stress1 (2, 1) ^ 2 + Stress1 (2, 2) ^ 2 + Stress1 (2, 3) ^ 2)) > StressYield1 * 10 ^ 6
bta_1 (ii) = 0.7;% beta_a0是一个弹性模量系数列a G的水平(以0)
elseif√3 * Stress1 (2, 1) ^ 2 + Stress1 (2, 2) ^ 2 + Stress1 (2, 3) ^ 2)) > StressYield2 * 10 ^ 6
bta_1 (ii) = 0.3;
其他的
bta_1 (ii) = 1;
结束
结束
% 2级
为2 = 1:4
如果StressYield2 > =√3 * Stress2 (2, 1) ^ 2 + Stress2 (2, 2) ^ 2 + Stress2 (2, 3) ^ 2)) > StressYield1 * 10 ^ 6
bta_2 (ii) = 0.7;% beta_a0是一个弹性模量系数列a G的水平(以0)
elseif√3 * Stress2 (2, 1) ^ 2 + Stress2 (2, 2) ^ 2 + Stress2 (2, 3) ^ 2)) > StressYield2 * 10 ^ 6
bta_2 (ii) = 0.3;
其他的
bta_2 (ii) = 1;
结束
结束
% 3级
为2 = 1:4
如果StressYield2 > =√3 * Stress3 (2, 1) ^ 2 + Stress3 (2, 2) ^ 2 + Stress3 (2, 3) ^ 2)) > StressYield1 * 10 ^ 6
bta_3 (ii) = 0.7;% beta_a0是一个弹性模量系数列a G的水平(以0)
elseif√3 * Stress3 (2, 1) ^ 2 + Stress3 (2, 2) ^ 2 + Stress3 (2, 3) ^ 2)) > StressYield2 * 10 ^ 6
bta_3 (ii) = 0.3;
其他的
bta_3 (ii) = 1;
结束
结束
% %跟踪(CS)的刚度中心关于坐标系统
%刚度中心
% G地板
CS0x = ((Kyb0 + Kyc0) * L / 2 - (Kya0 + Kyd0) * L / 2) / (Kya0 + Kyb0 + Kyc0 + Kyd0);
CS0y = ((Kxa0 + Kxb0) * B / 2 - (Kyc0 + Kyd0) * B / 2) / (Kxa0 + Kxb0 + Kxc0 + Kxd0);
% 1楼
CS1x = ((Kyb1 + Kyc1) * L / 2 - (Kya1 + Kyd1) * L / 2) / (Kya1 + Kyb1 + Kyc1 + Kyd1);
CS1y = ((Kxa1 + Kxb1) * B / 2 - (Kyc1 + Kyd1) * B / 2) / (Kxa1 + Kxb1 + Kxc1 + Kxd1);
% 2楼
CS2x = ((Kyb2 + Kyc2) * L / 2 - (Kya2 + Kyd2) * L / 2) / (Kya2 + Kyb2 + Kyc2 + Kyd2);
CS2y = ((Kxa2 + Kxb2) * B / 2 - (Kyc2 + Kyd2) * B / 2) / (Kxa2 + Kxb2 + Kxc2 + Kxd2);
% 3楼
CS3x = ((Kyb3 + Kyc3) * L / 2 - (Kya3 + Kyd3) * L / 2) / (Kya3 + Kyb3 + Kyc3 + Kyd3);
CS3y = ((Kxa3 + Kxb3) * B / 2 - (Kyc3 + Kyd3) * B / 2) / (Kxa3 + Kxb3 + Kxc3 + Kxd3);
% %定义rcm, rcm_y和rcm_x(距离的COM的系统
%刚度中心
% G水平
rcm0 =√(CS0y - COMy0) ^ 2 + (CS0x - COMx0) ^ 2);
rcm_0y = abs (CS0y - COMy0);
rcm_0x = abs (CS0x - COMx0);
% 1级
rcm1 =√(CS1y - COMy1) ^ 2 + (CS1x - COMx1) ^ 2);
rcm_1y = abs (CS1y - COMy1);
rcm_1x = abs (CS1x - COMx1);
% 2级
rcm2 =√(CS2y - COMy2) ^ 2 + (CS2x - COMx2) ^ 2);
rcm_2y = abs (CS2y - COMy2);
rcm_2x = abs (CS2x - COMx2);
% 3级
rcm3 =√(CS3y - COMy3) ^ 2 + (CS3x - COMx3) ^ 2);
rcm_3y = abs (CS3y - COMy3);
rcm_3x = abs (CS3x - COMx3);
% % %系统参数
% %质量矩阵
% % - - - - - - - - - - - - - - - - - - - - - - - -
M = [M0 + alpha0 * M0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0;
0,M0 + alpha0 * M0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0;
0,0,I0 + alpha0 *钱数,0,0,0,0,0,0,0,0,0;
0,0,0,M1 +α1 * M1, 0, 0, 0, 0, 0, 0, 0, 0;
0,0,0,0,M1 +α1 * M1, 0, 0, 0, 0, 0, 0, 0;
0,0,0,0,0,I1 +α1 * I1, 0, 0, 0, 0, 0, 0;
0,0,0,0,0,0,M2 + alpha2 *平方米,0,0,0,0,0;
0,0,0,0,0,0,0,M2 + alpha2 *平方米,0,0,0,0;
0,0,0,0,0,0,0,0,I2 + alpha2 * I2, 0, 0, 0;
0,0,0,0,0,0,0,0,0,M3 + alpha3 * M3, 0, 0;
0,0,0,0,0,0,0,0,0,0,M3 + alpha3 * M3 0;
0,0,0,0,0,0,0,0,0,0,0,I3 + alpha3 * I3;
%
%刚度矩阵
% - - - - - - - - - - - - - - - - - - - - - - - -
%沙在X方向上刚度
Kxa0 (i) = bta_0 (1) * 12 * E * Ixx / H ^ 3;
Kxb0 (i) = bta_0 (2) * 12 * E * Ixx / H ^ 3;
Kxc0 (i) = bta_0 (3) * 12 * E * Ixx / H ^ 3;
Kxd0 (i) = bta_0 (4) * 12 * E * Ixx / H ^ 3;
%在y方向剪切刚度
Kya0 = bta_0 (1) * 12 * E * Iyy / H ^ 3;
Kyb0 = bta_0 (2) * 12 * E * Iyy / H ^ 3;
Kyc0 = bta_0 (3) * 12 * E * Iyy / H ^ 3;
Kyd0 = bta_0 (4) * 12 * E * Iyy / H ^ 3;
%转动刚度
Kra0 = bta_0 (1) * G * J / H;
Krb0 = bta_0 (2) * G * J / H;
Krc0 = bta_0 (3) * G * J / H;
Krd0 = bta_0 (4) * G * J / H;
% * * * * * * * * * 1楼* * * * * * * * * * * *
Kxa1 = bta_1 (1) * 12 * E * Ixx / H ^ 3;
Kxb1 = bta_1 (2) * 12 * E * Ixx / H ^ 3;
Kxc1 = bta_1 (3) * 12 * E * Ixx / H ^ 3;
Kxd1 = bta_1 (4) * 12 * E * Ixx / H ^ 3;
%在y方向剪切刚度
Kya1 = bta_1 (1) * 12 * E * Iyy / H ^ 3;
Kyb1 = bta_1 (2) * 12 * E * Iyy / H ^ 3;
Kyc1 = bta_1 (3) * 12 * E * Iyy / H ^ 3;
Kyd1 = bta_1 (4) * 12 * E * Iyy / H ^ 3;
%转动刚度
Kra1 = bta_1 (1) * G * J / H;
Krb1 = bta_1 (2) * G * J / H;
Krc1 = bta_1 (3) * G * J / H;
Krd1 = bta_1 (4) * G * J / H;
% * * * * * * * * * * 2号楼* * * * * * * * * * *
%沙在X方向上刚度
Kxa2 = bta_2 (1) * 12 * E * Ixx / H ^ 3;
Kxb2 = bta_2 (2) * 12 * E * Ixx / H ^ 3;
Kxc2 = bta_2 (3) * 12 * E * Ixx / H ^ 3;
Kxd2 = bta_2 (4) * 12 * E * Ixx / H ^ 3;
%在y方向剪切刚度
Kya2 = bta_2 (1) * 12 * E * Iyy / H ^ 3;
Kyb2 = bta_2 (2) * 12 * E * Iyy / H ^ 3;
Kyc2 = bta_2 (3) * 12 * E * Iyy / H ^ 3;
Kyd2 = bta_2 (4) * 12 * E * Iyy / H ^ 3;
%转动刚度
Kra2 = bta_2 (1) * G * J / H;
Krb2 = bta_2 (2) * G * J / H;
Krc2 = bta_2 (3) * G * J / H;
Krd2 = bta_2 (4) * G * J / H;
% * * * * * * * * * *三楼* * * * * * * * * *
%沙在X方向上刚度
Kxa3 = bta_3 (1) * 12 * E * Ixx / H ^ 3;
Kxb3 = bta_3 (2) * 12 * E * Ixx / H ^ 3;
Kxc3 = bta_3 (3) * 12 * E * Ixx / H ^ 3;
Kxd3 = bta_3 (4) * 12 * E * Ixx / H ^ 3;
%在y方向剪切刚度
Kya3 = bta_3 (1) * 12 * E * Iyy / H ^ 3;
Kyb3 = bta_3 (2) * 12 * E * Iyy / H ^ 3;
Kyc3 = bta_3 (3) * 12 * E * Iyy / H ^ 3;
Kyd3 = bta_3 (4) * 12 * E * Iyy / H ^ 3;
%转动刚度
Kra3 = bta_3 (1) * G * J / H;
Krb3 = bta_3 (2) * G * J / H;
Krc3 = bta_3 (3) * G * J / H;
Krd3 = bta_3 (4) * G * J / H;
Kx0 (i) = Kxa0 + Kxb0 + Kxc0 + Kxd0;
Ky0 (i) = Kya0 + Kyb0 + Kyc0 + Kyd0;
Kr0 (i) = Kra0 + Krb0 + Krc0 + Krd0;
Kx1 (i) = Kxa1 + Kxb1 + Kxc1 + Kxd1;
Ky1 (i) = Kya1 + Kyb1 + Kyc1 + Kyd1;
Kr1 (i) = Kra1 + Krb1 + Krc1 + Krd1;
Kx2 (i) = Kxa2 + Kxb2 + Kxc2 + Kxd2;
Ky2 (i) = Kya2 + Kyb2 + Kyc2 + Kyd2;
Kr2 (i) = Kra2 + Krb2 + Krc2 + Krd2;
Kx3 (i) = Kxa3 + Kxb3 + Kxc3 + Kxd3;
Ky3 (i) = Kya3 + Kyb3 + Kyc3 + Kyd3;
Kr3 (i) = Kra3 + Krb3 + Krc3 + Krd3;
% - - - - - - - - - - - -
K = [Kx0(我)+ Kx1(我),0,rcm0 * (Kx0(我)+ Kx1(我)),0,0,0,0,0,0,0,0,0;
0,Ky0(我)+ Ky1(我),rcm0 * (Ky0(我)+ Ky1(我)),0,0,0,0,0,0,0,0,0;
(Kx0 (i) + Kx1(我))* rcm_0y (Ky0(我)+ Ky1(我))* rcm_0x, ((Kx0(我)+ Kx1(我))* rcm_0y + (Ky0(我)+ Ky1(我))* rcm_0x) * rcm, 0, 0, 0, 0, 0, 0, 0, 0, 0);
0,0,0,Kx1(我)+ Kx2(我),0,rcm1 * (Kx1(我)+ Kx2(我)),0,0,0,0,0,0;
0,0,0,0,Ky1(我)+ Ky2(我),rcm1 * (Ky1(我)+ Ky2(我)),0,0,0,0,0,0;
0,0,0,(Kx1(我)+ Kx2(我))* rcm_1y (Ky1(我)+ Ky2(我))* rcm_1x, ((Kx1(我)+ Kx2(我))* rcm_1y + (Ky1(我)+ Ky2(我))* rcm_1x) * rcm1, 0, 0, 0, 0, 0, 0;
0,0,0,0,0,0,Kx2(我)+ Kx3(我),0,rcm2 * (Kx2(我)+ Kx3(我)),0,0,0;
0,0,0,0,0,0,0,Ky2(我)+ Ky3(我),rcm2 * (Ky2(我)+ Ky3(我)),0,0,0;
0,0,0,0,0,0,(Kx2(我)+ Kx3(我))* rcm_2y (Ky2(我)+ Ky3(我))* rcm_2x, ((Kx2(我)+ Kx3(我))* rcm_2y + (Ky2(我)+ Ky3(我))* rcm_2x) * rcm2, 0, 0, 0;
0,0,0,0,0,0,0,0,0,Kx3(我),0,rcm3 * (Kx3(我));
0,0,0,0,0,0,0,0,0,0,Ky3(我),rcm3 * (Ky3(我));
0,0,0,0,0,0,0,0,0,(Kx3(我))* rcm_3y (Ky3(我))* rcm_3x, ((Kx3(我))* rcm_3y + (Ky3(我))* rcm_3x) * rcm3];
%阻尼矩阵
% - - - - - - - - - - - - - - - - - - - - - - - -
残雪= 2 * 0.05 *√(Kx0 * M0);
Cy = 2 * 0.05 *√(Ky0 * M0);
C =[残雪(i), 0, rcm * Cy (i), 0, 0, 0, 0, 0, 0, 0, 0, 0;
0,Cy (i)、rcm * Cy(我),0,0,0,0,0,0,0,0,0;;
残雪(我)* rcm_0y, Cy (i) * rcm_0x, (Cx (i) * rcm_0y + Cy (i) * rcm_0x) * rcm, 0, 0, 0, 0, 0, 0, 0, 0, 0;
0,0,0,残雪(i), 0, rcm1 * Cy (i), 0, 0, 0, 0, 0, 0;
0,0,0,0,Cy(我),rcm1 * Cy (i), 0, 0, 0, 0, 0, 0;
0,0,0,残雪(我)* rcm_1y, Cy (i) * rcm_1x (Cx (i) * rcm_1y + Cy (i) * rcm_1x) * rc1, 0, 0, 0, 0, 0, 0;
0,0,0,0,0,0,残雪(i), 0, rcm2 * Cy (i), 0, 0, 0;
0,0,0,0,0,0,0,Cy(我),rc2 * Cy (i), 0, 0, 0;
0,0,0,0,0,0,残雪(我)* rcm_2y, Cy (i) * rcm_2x (Cx (i) * rcm_2y + Cy (i) * rcm_2x) * rcm2, 0, 0, 0;
0,0,0,0,0,0,0,0,0,残雪(i), 0, rcm3 * Cy(我);
0,0,0,0,0,0,0,0,0,0,Cy(我),rcm3 * Cy(我);
0,0,0,0,0,0,0,0,0,残雪(我)* rcm_3y, Cy (i) * rcm_3x (Cx (i) * rcm_3y + Cy (i) * rcm_3x) * rcm3];
% %计算步龙格库塔第四阶的方法
h = t;%的时间步长
D(:,我)= D(:,我);
V(:,我)=(:,我);
(:,i) = (:, i);
% * * * * * * * * * * * * * * * * * * *
D1 (:, i) = h。* V(:,我);
V1 (:, i) = h。* (:, i);
D2 (:, i) = h。* (0.5 * V1 (:, i) + V(:,我));
V2 (:, i) = h。* (M \ (F (:, i) - K * (D1 (:, i) / 2 + D(:,我))- C * (V1 (:, i) / 2 + V(:,我))));
D3 (:, i) = h。* (V(:,我)+ V2 (:, i) / 2);
V3 (:, i) = h。* (M \ (F (:, i) - K * (D2 (:, i) / 2 + D(:,我))- C * (V2 (:, i) / 2 + V(:,我))));
D4 (:, i) = h。* (V(:,我)+ V3(:,我));
V4 (:, i) = h。* (M \ (F (:, i) - K * (D3(:,我)+ D(:,我))- C * (V3(:,我)+ V(:,我))));
% * * * * * * * * * * * * * * * * * * *
d (:, i + 1) = d(:,我)+ 1/6 * (D1(:,我)+ 2 * D2(:,我)+ 2 * D3(:,我)+ D4(:,我));
v (:, i + 1) =(:,我)+ 1/6 * (V1(:,我)+ 2 * V2(:,我)+ 2 * V3(:,我)+ V4(:,我));
(:,i + 1) = M \ (F (:, i + 1) - K * d (:, i + 1) - C * v (:, i + 1));
% %块计算
%块矢量P[]”表示为(P1x; P1y P2x; P2y .......]
%检查物体的加速度的大小与摩擦
% constriant
%为(i)迭代
m = 3;
γ= 1/2;
GammB = 1/4;
% ?
为j = 0: m
如果((1 + m + 1) ^ 2 + (2 + m,我+ 1)^ 2)<(μ* 9.81)^ 2
[Ax, Ay] = A_any ((1 + m + 1),一个(2 + m i + 1),一个(3 + m i + 1)、d (1 + m + 1)、d (2 + m i + 1)、P (1 + m)、P (2 + m i));
P_tt (1 + m + 1) = Ax;
P_tt (2 + m,我+ 1)=啊;
[Dx, Dy] = D_any (d (1 + m + 1)、d (2 + m i + 1)、d (3 + m i + 1), P (1 + m)、P (2 + m i));
P (i + 1) = P(我)- d(我)+ Dx;
P (i + 1) = P(我)- d(我)+ Dy;
[P_t (i + 1), P_t (2, + 1) = V_any (v (1 + m + 1), v (2 + m i + 1), v (3 + m i + 1)、d (1 + m + 1)、d (2 + m i + 1)、P (1 + m)、P (2 + m i));
其他的
%
P_tt (1 + m + 1) = P_tt (1 + m);
P_tt (2 + m i + 1) = P_tt (2 + m i);
P_t (:, i + 1) = P_t(:,我)+((1 -γ)* P_tt (:, i) +γ* P_tt (:, i + 1) * h;
P (:, i + 1) = P(:,我)+ P_t(:,我)* h + h ^ 2 * ((0.5 - GammB) * P_tt(:,我)+ 0.5 * P_tt (:, i + 1)];
结束
结束
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