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2、Ë٣ʱ¼äÇúÏߣ¬»òÕßÓüÆËã»úÇóÆû³µÓÃ2µµÆð²½¼ÓËÙÐÐÊ»ÖÁ70km/hµÄ¼ÓËÙʱ¼ä¡£ÇáÐÍ»õ³µµÄÓйØÊý¾Ý£ºÆûÓÍ·¢¶¯»úʹÓÃÍâÌØÐÔµÄTq-nÇúÏßµÄÄâºÏ¹«Ê½Îª23419.313295.27()165.44()40.874()3.8445()1000100010001000qnnnnT=?+?+?ʽÖУ¬TqΪ·¢¶¯»úת¾Ø£¨N?m£©;nΪ·¢¶¯»úתËÙ£¨r/min£©¡£·¢¶¯»úµÄ×îµÍתËÙnmin=600r/min,×
3、î¸ßתËÙnmax=4000r/min¡£×°ÔØÖÊÁ¿2000kgÕû³µÕû±¸ÖÊÁ¿1800kg×ÜÖÊÁ¿3880kg³µÂְ뾶0.367m´«¶¯Ïµ»úеЧÂʦÇt=0.85¹ö¶¯×èÁ¦ÏµÊýf=0.013¿ÕÆø×èÁ¦ÏµÊý¡ÁÓ·çÃæ»ýCDA=2.77m2Ö÷¼õËÙÆ÷´«¶¯±Èi0=5.83·ÉÂÖת¶¯¹ßÁ¿If=0.218kg?m2¶þÇ°ÂÖת¶¯¹ßÁ¿Iw1=1.798kg?m2ËĺóÂÖת¶¯¹ßÁ¿Iw2=3.598kg?m2±äËÙÆ÷´«¶¯±Èig(Êý¾ÝÈçϱí)¢
4、ñµµ¢òµµ¢óµµ¢ôµµ¢õµµËĵµ±äËÙÆ÷6.093.091.711.00-Îåµµ±äËÙÆ÷5.562.7691.6441.000.793Öá¾àL=3.2mÖÊÐÄÖÁÇ°Öá¾àÀ루ÂúÔØ£©a=1.974mÖÊÐĸߣ¨ÂúÔØ£©hg=0.9m½â£ºMatlab³ÌÐò£º(1)ÇóÆû³µÇý¶¯Á¦ÓëÐÐÊ»×èÁ¦Æ½ºâͼºÍÆû³µ×î¸ß³µËÙ³ÌÐò£ºn=[600:10:4000];Tq=-19.313+295.27*(n/1000)-165.44*(n/1000).^2+40.874*(n/100
5、0).^3-3.8445*(n/1000).^4;m=3880;g=9.8;nmin=600;nmax=4000;G=m*g;ig=[5.562.7691.6441.000.793];nT=0.85;r=0.367;f=0.013;CDA=2.77;i0=5.83;L=3.2;a=1.947;hg=0.9;If=0.218;Iw1=1.798;Iw2=3.598;Ft1=Tq*ig(1)*i0*nT/r;Ft2=Tq*ig(2)*i0*nT/r;Ft3=Tq*ig(3)*i0*nT/r;1./34Ft4=Tq*ig(4)*i0*nT/r;Ft5=Tq*ig(
6、5)*i0*nT/r;ua1=0.377*r*n/ig(1)/i0;ua2=0.377*r*n/ig(2)/i0;ua3=0.377*r*n/ig(3)/i0;ua4=0.377*r*n/ig(4)/i0;ua5=0.377*r*n/ig(5)/i0;ua=[0:5:120];Ff=G*f;Fw=CDA*ua.^2/21.15;Fz=Ff+Fw;plot(ua1,Ft1,ua2,Ft2,ua3,Ft3,ua4,Ft4,ua5,Ft5,ua,Fz);title('Çý¶¯Á¦-ÐÐÊ»×èÁ¦Æ½ºâͼ');xlabel('ua(km/s)');ylabel
7、('Ft(N)');gtext('Ft1'),gtext('Ft2'),gtext('Ft3'),gtext('Ft4'),gtext('Ft5'),gtext('Ff+Fw');zoomon;[x,y]=ginput(1);zoomoff;disp('Æû³µ×î¸ß³µËÙ=');disp(x);disp('km/h');Æû³µ×î¸ß³µËÙ=99.3006km/h1./34(2)ÇóÆû³µ×î´óÅÀƶȳÌÐò£ºn=[600:10:4000];Tq=-19.313+295.27*(n/1000)-165.44*(n/1000).^2+40
8、.874*(n/1000).^3-3.8445*(n
