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Ææ¹ÖÁË£¬MathematicaÕâô¼òµ¥µÄÒ»¸ö¼ÆËãÎÊÌâΪʲôËã²»³öÀ´£¿£¿ Clear["Global`*"] Subscript[B, 2] = 20; m = 5.35; z1 = 43; z2 = 12; \[Beta] = 11*Pi/180; r = m*z1/(Cos[\[Beta]]*2); \[CapitalSigma] = 11.7508*Pi/180; \[Alpha] = 0.371267842; n = 10; f = 1; fr = 0.045; (*fµÄµ¥Î»Îªmm/min£¬Subscript[f, r]µÄµ¥Î»Îªmm/s£¬nµÄµ¥Î»Îªr/s*) a = 0.001874032; l1 = 113.8259522 + 6.4240478 t; l2 = 40.3693148 - 9.82149198 t;(*tΪ0~1,²½³¤Îª0.01*) v = \[Sqrt]((fr*Cos[0.371267842] + 2 \[Pi]*(z2/z1)*n* Sin[Pi/9]*((113.8259522 + 6.4240478 t)/Sqrt[ 1 + 2.7517768075691696`*^-6 (113.8259522` + 6.4240478` t)^2])\[InvisibleApplication] \ -(2*\[Pi]*(40.3693148 - 9.82149198 t)*n* Sin[Pi/9]))^2 + (2 \[Pi]*(113.8259522 + 6.4240478 t)*(z2/ z1)*n*Sin[Pi/9]*Cos[\[CapitalSigma]] + f)^2); t = 0; N[v, 7] ½á¹û¸ø³öÀ´µÄÊÇSqrt[447995. + (0.0419341 + 5.99714 111.85[-867.527])^2]ÕâÊÇʲô½á¹û£¿ÎªÊ²Ã´¼ÆËã²»³öÀ´Ò»¸ö׼ȷµÄÊýÖµ |
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¶À¹ÂÉñÓî: ½ð±Ò+1 2018-06-02 09:10:51
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