汽车系统动力学Matlab

1/182/183/18i=1;R=[];armIuc4/185/18D=[];C=[];M=[];i;w=2*pi*f;PQPQPQHw1=-inv(A1-1i*w*E)*B1;Hw2=-inv(A2-1i*w*E)*B2;Hw3=-inv(A3-1i*w*E)*B3;wi=i+1;6/18fMtitle性车辆的横摆角速度幅频响应'],'FontSize',12);ylabel('横摆角速度增益/{(°/s)/(°)}')D=[];C=[];M=[];i;w=2*pi*f;PQPQPQHw1=-inv(A1-1i*w*E)*B1;7/18Hw2=-inv(A2-1i*w*E)*B2;Hw3=-inv(A3-1i*w*E)*B3;wi=i+1;fMtitle性车辆的横摆角速度幅频响应'],'FontSize',12);ylabel('横摆角速度增益/{(°/s)/(°)}')fMtitle性车辆的横摆角速度相频响应'],'FontSize',12);ylabel('横摆角速度相位(°)')title性车辆的横摆角速度相频响应'],'FontSize',12);ylabel('横摆角速度相位(°)')8/18D=[];C=[];M=[];i;w=2*pi*f;Vi=w*I*Caf;afCarucmaCafucafCarucmaCafucafCarucmaCafucRi1=w*m*a1*Caf;Ri2=w*m*a2*Caf;9/18Ri3=w*m*a3*Caf;rwmILCafCarucmbCaraCafrwmILCafCarucmbCaraCafrwmILCafCarucmbCaraCafHay1=1i*w*(Vr1+1i*Vi)/(Dr1+1i*Di1)+uc*(Rr+1i*Ri1)/(Dr1+1i*Di1);Hay2=1i*w*(Vr2+1i*Vi)/(Dr2+1i*Di2)+uc*(Rr+1i*Ri2)/(Dr2+1i*Di2);Hay3=1i*w*(Vr3+1i*Vi)/(Dr3+1i*Di3)+uc*(Rr+1i*Ri3)/(Dr3+1i*Di3);i=i+1;title性车辆的侧向加速度幅频响应'],'FontSize',12);ylabel('侧向加速度增益/[g/(°)]')fMtitle不同转向特性车辆的侧向加速度幅频响应'],'FontSize',12);ylabel('侧向加速度相位(°)')10/18ww=[];v=[];s=[];Fxbumg;11/18sw(i)=w0;v(i)=v0;i=i+1;twrdtitleFontSize',12);12/18J;KK13/18i;K(i,i-1)=-K1(i-1);K(i,i)=K1(i-1)+K1(i);K(i,i+1)=-K1(i);A=inv(J)*K;f=sqrt(D)/(2*pi);title(['单节点振型图(4.26Hz)'],'FontSize',12)title(['双节点振型图(11.99Hz)'],'FontSize',12)14/18n=1;B=[];D=[];w=2*pi*f;A=[i*cs*w+(ks+kt-w^2*mw),-i*cs*w-ks;-i*cs*w-ks,i*cs*w+(ks-mb*w^2)];15/18C=[kt;0];ffflotfBylabel')lotfBmlotfBylabel('轮胎动载荷增益/[N/m]')lotfBylabel('悬架动行程功率谱密度/[m^2/Hz]')lotfBz16/18lotfBylabel('轮胎动载荷功率谱密度/[N^2/Hz]')17/18leMFFontSiz