[精品]车辆内轮差论文附件.doc

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1、附录附录一：问题一中查找到的数据表1小型车辆的相关数据轴距/刃后轮距/刃最小转弯半径/刃2.341.414.752.331.3554.82.341.414.752.341.414.752.3351.3554.752.391.4024.52.361.44.52.361.4574.52.4651.4575.252.451.434.952.571.4935.22.451.4754.52.5271.4225.52.5271.4225.52.4651.4575.25表2屮型车辆的相关数据轴距/刃后轮距/刃最小转弯半径/刃3.0121.6186.32.8071.6135.82.761

2、.5445.422.81.5855.72.8151.5545.952.7951.6015.572.621.5655.542.6191.5225.42.641.5155.22.7751.565.52.851.5355.2表3大型车辆的相关数据轴距/刃后轮距/刃最小转弯半径/刃5.171.83610.36.21.8610.65.621.8710.55.861.8510.45.841.8410.15.791.910.46.011.9710.75.81.8510.45.831.8710.35.841.8610.2附录二：问题一中求三种型号车辆内轮差的实现程序%%内轮差的计算%大型

3、车B=xlsread(，B.xls，);fori=l:2m=sqrt((sqrt(B(i,3)*2~B(i,1)*2)-B(i,2))*2+B(i,1)*2)-sqrt(B(i,3)*2~B(i,1)"2)+B(i,2);endmean(m)%中型车"[6.35.85.425.75.955.575.545.45.25.55.2];d二[1.6181.6131.5441.5851.5541.6011.5651.5221.5151.561.535];1二[3.0122.8072.762.82.8152.7952.622.6192.642.7752.85];nFsqrt((sq

4、rt(r."2-1."2)-d)・"2+1."2)-sqrt(r."2-1."2)+d;mean(m)%小型车1=[2.342.332.342.342.3352.392.362.362.4652.452.572.452.5272.5272.465];d=[1.411.3551.411.411.3551.4021.41.41.4571.431.4931.4751.4221.4221.457];r=[4.754.84.754.754.754.54.54.55.254.955.24.55.55.55.25];m=sqrt((sqrt(r.2-1.2)~d).2+1.2)-sqr

5、t(r.2-1.2)+d;mean(m)附录三：问题一中灵敏度分析的实现程序symsridf=sqrt((sqrt(r^2-l2)~d)2+12)-sqrt(r^2-l2)+d;gradient=jacobian(f,[r,1,d]);%求梯度tiduzhi=eval(gradient)%%中型车r,l,d的梯度比较clear,clcsymszd;d二2:0.05:12;r=5.5982;1=2.7721;z二(2.*d-2・*(r."2-1.”2)."(1./2))./(2.*((d-(r."2-1「2)•"仃・/2))「2+1「2)•"仃./2))+1;plot(d,

6、z,'r')holdonsyms1;1=2:0.05:12;r=5.5982;d=l.5647;z=l./(r.^2-1.，2)・’(l・/2)+(2・*1+(2*1.*(d-(r.^2-1.‘2).'(1・/2)))./(t・‘2-1.‘2)."(l./2))・/(2・*((d-(r."2-1「2)J(1・/2))J2+l「2)J(l・/2));%z=l./(r.‘2-l・’2)「(l./2)+(2・*1+(2.*l.*(d-(r.^2-1.J厂(l・/2)))・/(「2-1.八2)・"(l・/2))./(2・*((d-Cr・’2-1「2)・"(l./2))「2+1.^

7、2).71.72))plot(1,z,'b')holdonsymsrz;r=2:0.05:12;1=2.7721;d=l.5647;z=-r./(r.2一L2).'(1./2)-(r.*(d-(r.2一1.”2)."(1./2)))./((r.2-1."2)・'(l./2).*((d-(r.‘2-1.八2).八(1./2)).‘2+1.八2)."(1./2));plot(r,z,'k')legend('d',T','t','location','best')title('中型车r,1,d的梯度比较')%%小型车r,1,d的梯度