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%¼ÆË㲻ͬµÄ¦Î ÖµËù¶ÔÓ¦µÄÕñÐÍ for j=1:10; eta(j)=0.1*j; wd(j)=wn*sqrt(1-eta(j)^2); %ÇóÕñ·ù A

a=sqrt((wn*x0*eta(j)+v0)^2+(x0*wd(j))^2)/wd(j); %ÇóÏàλ½Ç

phi=atan2(wd(j)*x0,v0+eta(j)*wn*x0); %É趨×Ô±äÁ¿Êý×é t t=0:tf/1000:tf; %Çó¹ý¶É¹ý³Ì

x(j,:)=a*exp(-eta(j)*wn*t).*sin(wd(j)*t+phi); end

%ÔÚͬһ¸öͼÐδ°¿ÚÖлæÖƲ»Í¬µÄ¦Î ÖµËù¶ÔÓ¦µÄÕñÐÍ plot(t,x(1,:),t,x(2,:),t,x(3,:),t,x(4,:),... t,x(5,:),t,x(6,:),t,x(7,:),t,x(8,:),... t,x(9,:),t,x(10,:)) grid on

%н¨Ò»¸öͼÐδ°¿Ú£¬»æÖÆÈýÎ¬Íø¸ñͼ figure mesh(x)

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