ÌâÄ¿ÄÚÈÝ

8£®ÈçͼËùʾ£¬ÔÚºñ¶ÈΪHµÄ³¤·½ÌåÓлú²£Á§ÉϱíÃæ´¹Ö±¹Ì¶¨Ó«¹âÆÁ£¬Õý·½ÌåÓлú²£Á§Ï±íÃæÍ¿ÓжÆÒø·´É䱡Ĥ£®Ò»Ï¸¼¤¹âÊø´Ó¿ÕÆøÖÐÉäÈë¸ÃÓлú͸Ã÷²£Á§µÄÉϱíÃæµÄOµã£¬¼¤¹âÊø¾­Óлú²£Á§Ï±íÃæ·´Éäºó´ÓÉϱíÃæµÄAµãÉä³ö£®ÒÑÖªÈëÉä½ÇΪi£¬A¡¢OÁ½µãµÄ¼ä¾àΪL£¬¹âÔÚÕæ¿ÕÖд«²¥µÄËÙ¶ÈΪc£®Çó£º
£¨1£©ÊúÖ±Ó«¹âÆÁÉÏÁ½¸ö¹âµãP¡¢QÖ®¼äµÄ¾àÀëºÍÓлú²£Á§µÄÕÛÉäÂÊ£®
£¨2£©¼¤¹âÔÚÓлú²£Á§Öд«²¥µÄʱ¼ä£®

·ÖÎö £¨1£©¸ù¾Ý¼¸ºÎ֪ʶÇó¹âÏßÔÚ²£Á§×©ÉϱíÃæµÄÕÛÉä½Ç£¬ÓÉÕÛÉ䶨ÂÉÇóÕÛÉäÂÊ£®ÓÉ·´É䶨Âɺͼ¸ºÎ¹ØÏµÇóÊúÖ±Ó«¹âÆÁÉÏÁ½¸ö¹âµãP¡¢QÖ®¼äµÄ¾àÀ룮
£¨2£©¸ù¾Ý¹«Ê½v=$\frac{c}{n}$Ç󼤹âÔÚÓлú²£Á§Öд«²¥µÄËÙ¶È£¬Óɼ¸ºÎ֪ʶÇó³ö¼¤¹âÔÚÓлú²£Á§Öд«²¥µÄ¾àÀ룬´Ó¶øµÃµ½´«²¥µÄʱ¼ä£®

½â´ð ½â£º£¨1£©×÷³ö¹â·ͼ£®¸ù¾Ý¼¸ºÎ֪ʶµÃ£º
  sinr=$\frac{\frac{1}{2}L}{\sqrt{£¨\frac{1}{2}L£©^{2}+{H}^{2}}}$=$\frac{L}{\sqrt{{L}^{2}+4{H}^{2}}}$
¸ù¾ÝÕÛÉ䶨Âɵã¬Óлú²£Á§µÄÕÛÉäÂÊ n=$\frac{sini}{sinr}$=$\frac{sini}{L}$$\sqrt{{L}^{2}+4{H}^{2}}$
ÉèÊúÖ±Ó«¹âÆÁÉÏÁ½¸ö¹âµãP¡¢QÖ®¼äµÄ¾àÀëΪS£®
¸ù¾Ý¹âµÄ·´É䶨Âɺͼ¸ºÎ֪ʶ¿ÉµÃ£º
   S=Lcoti
£¨2£©¼¤¹âÔÚÓлú²£Á§Öд«²¥µÄËÙ¶È v=$\frac{c}{n}$
Óɼ¸ºÎ֪ʶµÃ£º¼¤¹âÔÚÓлú²£Á§Öд«²¥µÄ¾àÀë x=2•$\frac{\frac{1}{2}L}{sinr}$=$\sqrt{{L}^{2}+4{H}^{2}}$
ËùÒÔ¼¤¹âÔÚÓлú²£Á§Öд«²¥µÄʱ¼ä t=$\frac{x}{v}$=$\frac{£¨{L}^{2}+4{H}^{2}£©sini}{cL}$
´ð£º
£¨1£©ÊúÖ±Ó«¹âÆÁÉÏÁ½¸ö¹âµãP¡¢QÖ®¼äµÄ¾àÀëΪLcoti£¬Óлú²£Á§µÄÕÛÉäÂÊΪ$\frac{sini}{L}$$\sqrt{{L}^{2}+4{H}^{2}}$£®
£¨2£©¼¤¹âÔÚÓлú²£Á§Öд«²¥µÄʱ¼äΪ$\frac{£¨{L}^{2}+4{H}^{2}£©sini}{cL}$£®

µãÆÀ ±¾ÌâµÄ½âÌâ¹Ø¼üÊÇÀûÓü¸ºÎ֪ʶÇó³öÕÛÉä½ÇµÄÕýÏÒ£¬¼´¿ÉÇóµÃÕÛÉäÂÊ£¬ÔËÓÃÊýѧ֪ʶÇóÏà¹Ø½Ç¶È»ò¹â´«²¥µÄ¾àÀëÊdz£Óõķ½·¨£¬ÒªÄÜÊìÁ·ÕÆÎÕ£®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø