ÌâÄ¿ÄÚÈÝ
¿ÎÍâ»î¶¯Ð¡×éµÄͬѧÉè¼ÆÁËÒ»¸öʵÑé·½°¸£¬ÓÃÀ´²âËã²øÈÆÂÝÏ߹ܵĽðÊôË¿³¤¶È£®ÒÑÖª²øÈÆÂÝÏ߹ܵĽðÊôË¿µç×è½ÏС£¬¾²éÔÄ×ÊÁϵÃÖª¸Ã½ðÊôË¿µÄµç×èÂÊΪ¦Ñ=1.7¡Á10-8¦¸?m£®ËûÃÇÑ¡ÓÃÁ˶àÓõç±í¡¢µçÁ÷±í¡¢µçѹ±í¡¢¿ª¹Ø¡¢»¬¶¯±ä×èÆ÷¡¢ÂÝÐý²â΢Æ÷¡¢µ¼ÏߺÍѧÉúµçÔ´µÈÆ÷²Ä£®
£¨1£©ËûÃÇʹÓöàÓõç±í´Ö²âÂÝÏ߹ܽðÊôË¿µÄµç×裬²Ù×÷·ÖÒÔÏÂÈý¸ö²½Ö裬ÇëÌîдµÚ¢Ú²½
²Ù×÷£®
¢Ù½«ºì¡¢ºÚ±í±Ê·Ö±ð²åÈë¶àÓõç±íµÄ¡°+¡±¡¢¡°-¡±²å¿×£»Ñ¡Ôñµç×èµµ¡°¡Á1¡±
¢Ú
¢Û°Ñºì¡¢ºÚ±í±Ê·Ö±ðÓëÂÝÏ߹ܽðÊôË¿µÄÁ½¶ËÏà½Ó£¬¶àÓõç±íµÄʵÊýÈçͼ1±íʾ£®´ÓͼÖпÉÖª½ðÊôË¿µÄµç×èR= ¦¸£®
£¨2£©¸ù¾Ý¶àÓõç±íʵÊý£¬ÎªÁ˼õÉÙµç×è²âÁ¿µÄʵÑéÎó²î£¬Ä³Í¬Ñ§½«ÊµÑéÆ÷²ÄÁ¬½Ó³ÉÈçͼ2 ËùʾµÄµç·£¬ÒªÇóʵÑéÖеçѹ±íµÄʵÊýÄܹ»´ÓÁ㿪ʼ±ä»¯£¬±ÕºÏ¿ª¹ØÇ°£¬ÇëÄã¼ì²éʵÑéµç·£¬ÔÚ´íÎóµÄÁ¬ÏßÉÏ»¡°¡Á¡±£¬²¢¸ÄÕýÖÁÕýȷλÖ㮸ù¾ÝÄã¸ÄÕýµÄµç·£¬ÔÚͼ3·½¿òÖл³öµç·µÄÔÀíͼ£®
£¨3£©ËûÃÇʹÓÃÂÝÐý²â΢Æ÷²âÁ¿½ðÊôË¿µÄÖ±¾¶£¬Ê¾ÊýÈçͼ4Ëùʾ£¬½ðÊôË¿µÄÖ±¾¶Îª mm
£¨4£©¸ù¾Ý¶àÓõç±í²âµÃµÄ½ðÊôË¿µç×èÖµ£¬¿É¹ÀËã³öÈÆÖÆÕâ¸öÂÝË¿¹ÜËùÓýðÊôË¿µÄ³¤¶ÈԼΪ m
£¨½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©
![¾«Ó¢¼Ò½ÌÍø](http://thumb.1010pic.com/pic3/upload/images/201312/178/5a7ccbbb.png)
£¨1£©ËûÃÇʹÓöàÓõç±í´Ö²âÂÝÏ߹ܽðÊôË¿µÄµç×裬²Ù×÷·ÖÒÔÏÂÈý¸ö²½Ö裬ÇëÌîдµÚ¢Ú²½
²Ù×÷£®
¢Ù½«ºì¡¢ºÚ±í±Ê·Ö±ð²åÈë¶àÓõç±íµÄ¡°+¡±¡¢¡°-¡±²å¿×£»Ñ¡Ôñµç×èµµ¡°¡Á1¡±
¢Ú
¢Û°Ñºì¡¢ºÚ±í±Ê·Ö±ðÓëÂÝÏ߹ܽðÊôË¿µÄÁ½¶ËÏà½Ó£¬¶àÓõç±íµÄʵÊýÈçͼ1±íʾ£®´ÓͼÖпÉÖª½ðÊôË¿µÄµç×èR=
£¨2£©¸ù¾Ý¶àÓõç±íʵÊý£¬ÎªÁ˼õÉÙµç×è²âÁ¿µÄʵÑéÎó²î£¬Ä³Í¬Ñ§½«ÊµÑéÆ÷²ÄÁ¬½Ó³ÉÈçͼ2 ËùʾµÄµç·£¬ÒªÇóʵÑéÖеçѹ±íµÄʵÊýÄܹ»´ÓÁ㿪ʼ±ä»¯£¬±ÕºÏ¿ª¹ØÇ°£¬ÇëÄã¼ì²éʵÑéµç·£¬ÔÚ´íÎóµÄÁ¬ÏßÉÏ»¡°¡Á¡±£¬²¢¸ÄÕýÖÁÕýȷλÖ㮸ù¾ÝÄã¸ÄÕýµÄµç·£¬ÔÚͼ3·½¿òÖл³öµç·µÄÔÀíͼ£®
£¨3£©ËûÃÇʹÓÃÂÝÐý²â΢Æ÷²âÁ¿½ðÊôË¿µÄÖ±¾¶£¬Ê¾ÊýÈçͼ4Ëùʾ£¬½ðÊôË¿µÄÖ±¾¶Îª
£¨4£©¸ù¾Ý¶àÓõç±í²âµÃµÄ½ðÊôË¿µç×èÖµ£¬¿É¹ÀËã³öÈÆÖÆÕâ¸öÂÝË¿¹ÜËùÓýðÊôË¿µÄ³¤¶ÈԼΪ
£¨½á¹û±£ÁôÁ½Î»ÓÐЧÊý×Ö£©
![¾«Ó¢¼Ò½ÌÍø](http://thumb.1010pic.com/pic3/upload/images/201312/178/5a7ccbbb.png)
·ÖÎö£º£¨1£©¢ÚÅ·Ä·±íÊDzâÁ¿µç×èµÄÒÇ±í£¬°Ñ±»²âµç×è´®ÁªÔÚºìºÚ±í±ÊÖ®¼ä£¬Å·Ä·±íµçÁ÷ÊÇ´ÓºÚ±í±ÊÁ÷³öºì±í±ÊÁ÷È룬ÓÃÅ·Ä·±í²âµç×裬ÿ´Î»»µ²ºóºÍ²âÁ¿Ç°¶¼ÒªÖØе÷Á㣨ָŷķµ÷Á㣩£®¢ÛÅ·Ä·±í¶ÁÊýµÈÓÚ±íÅÌÖ¸ÕëµÄʾÊý³ËÒÔ±¶ÂÊ£»
£¨2£©±ÕºÏ¿ª¹ØÇ°£¬±ä×èÆ÷Êä³öµçѹӦ×îС£®µçѹ±íµÄ¶ÁÊý´ÓÁ㿪ʼ±ä»¯£¬±ä×èÆ÷±ØÐë½Ó³É·Öѹʽ£®Ð¡µç×è²ÉÓõçÁ÷±íµÄÍâ½Ó·¨£¬²âÁ¿Îó²î½ÏС£®
£¨3£©ÂÝÐý²â΢Æ÷µÄ¶ÁÊýÏȶÁ³ö¹Ì¶¨¿Ì¶ÈµÄÊýÖµ£¬ÔÙ¶Á³ö¿É¶¯¿Ì¶ÈµÄÊýÖµ£¬Á½ÕßÏà¼Ó¼´Îª½ðÊôË¿µÄÖ±¾¶£®
£¨4£©¸ù¾Ýµç×趨ÂÉ£ºR=¦Ñ
£¬´úÈëÊý¾Ý¼´¿ÉÇóµÃ½ðÊôË¿µÄ³¤¶È£®
£¨2£©±ÕºÏ¿ª¹ØÇ°£¬±ä×èÆ÷Êä³öµçѹӦ×îС£®µçѹ±íµÄ¶ÁÊý´ÓÁ㿪ʼ±ä»¯£¬±ä×èÆ÷±ØÐë½Ó³É·Öѹʽ£®Ð¡µç×è²ÉÓõçÁ÷±íµÄÍâ½Ó·¨£¬²âÁ¿Îó²î½ÏС£®
£¨3£©ÂÝÐý²â΢Æ÷µÄ¶ÁÊýÏȶÁ³ö¹Ì¶¨¿Ì¶ÈµÄÊýÖµ£¬ÔÙ¶Á³ö¿É¶¯¿Ì¶ÈµÄÊýÖµ£¬Á½ÕßÏà¼Ó¼´Îª½ðÊôË¿µÄÖ±¾¶£®
£¨4£©¸ù¾Ýµç×趨ÂÉ£ºR=¦Ñ
L |
S |
½â´ð£º½â£º£¨1£©¢Ú½«ºì¡¢ºÚ±í±Ê¶Ì½Ó£¬µ÷Õûµ÷ÁãÐýÅ¥µ÷Á㣻
¢Û½ðÊôË¿µÄµç×èR=12.0¡Á1¦¸=12.0¦¸£®![¾«Ó¢¼Ò½ÌÍø](http://thumb.1010pic.com/pic3/upload/images/201312/178/a7517288.png)
£¨2£©±¾ÊµÑéÒªÇóµçѹ±íµÄ¶ÁÊýÄܹ»´ÓÁ㿪ʼ±ä»¯£¬±ä×èÆ÷±ØÐë½Ó³É·Öѹʽ£®ÔÚ´íÎóµÄÁ¬ÏßÉÏ»¡°¡Á¡±£¬Èçͼ£®
ÓÉÓÚ´ý²âµç×èµÄ×èÖµ½ÏС£¬Ó¦²ÉÓõçÁ÷±íµÄÍâ½Ó·¨£¬²âÁ¿Îó²î½ÏС£®¸ÄÕýµÄµç·£¬µç·µÄÔÀíͼÈçͼËùʾ£®
£¨3£©ÂÝÐý²â΢Æ÷µÄ¶ÁÊýÊÇÓɹ̶¨¿Ì¶ÈÓëÐýת¿Ì¶È×éºÏ£¬¹Ì¶¨¿Ì¶È¶ÁÊýΪ0£¬¿É¶¯¿Ì¶È¶ÁÊýΪ26.0¡Á0.01mm=0.260mm£¬ÔòµÃ£º½ðÊôË¿µÄÖ±¾¶Îª d=0.260mm£®
£¨4£©Óɵç×趨ÂÉ£ºR=¦Ñ
£¬µÃ£º
L=
=
=
m=39m
¹Ê´ð°¸Îª£º
£¨1£©¢Ú½«ºì¡¢ºÚ±í±Ê¶Ì½Ó£¬µ÷Õûµ÷ÁãÐýÅ¥µ÷Á㣻¢Û12.0£»
£¨2£©ÈçͼËùʾ£»
£¨3£©0.260£»
£¨4£©39£®
¢Û½ðÊôË¿µÄµç×èR=12.0¡Á1¦¸=12.0¦¸£®
![¾«Ó¢¼Ò½ÌÍø](http://thumb.1010pic.com/pic3/upload/images/201312/178/a7517288.png)
£¨2£©±¾ÊµÑéÒªÇóµçѹ±íµÄ¶ÁÊýÄܹ»´ÓÁ㿪ʼ±ä»¯£¬±ä×èÆ÷±ØÐë½Ó³É·Öѹʽ£®ÔÚ´íÎóµÄÁ¬ÏßÉÏ»¡°¡Á¡±£¬Èçͼ£®
ÓÉÓÚ´ý²âµç×èµÄ×èÖµ½ÏС£¬Ó¦²ÉÓõçÁ÷±íµÄÍâ½Ó·¨£¬²âÁ¿Îó²î½ÏС£®¸ÄÕýµÄµç·£¬µç·µÄÔÀíͼÈçͼËùʾ£®
£¨3£©ÂÝÐý²â΢Æ÷µÄ¶ÁÊýÊÇÓɹ̶¨¿Ì¶ÈÓëÐýת¿Ì¶È×éºÏ£¬¹Ì¶¨¿Ì¶È¶ÁÊýΪ0£¬¿É¶¯¿Ì¶È¶ÁÊýΪ26.0¡Á0.01mm=0.260mm£¬ÔòµÃ£º½ðÊôË¿µÄÖ±¾¶Îª d=0.260mm£®
£¨4£©Óɵç×趨ÂÉ£ºR=¦Ñ
L |
S |
L=
RS |
¦Ñ |
R?
| ||
¦Ñ |
12¡Á
| ||
1.7¡Á10-8 |
¹Ê´ð°¸Îª£º
£¨1£©¢Ú½«ºì¡¢ºÚ±í±Ê¶Ì½Ó£¬µ÷Õûµ÷ÁãÐýÅ¥µ÷Á㣻¢Û12.0£»
£¨2£©ÈçͼËùʾ£»
£¨3£©0.260£»
£¨4£©39£®
µãÆÀ£ºÅ·Ä·±í²âÁ¿µç×è֮ǰ£¬¶¼±ØÐë½øÐÐÅ·Ä·µ÷Á㣬ҪÕÆÎÕ²Ù×÷µÄÒªÇóºÍ·½·¨£®±ä×èÆ÷½Ó·¨ÖУ¬µ±ÒªÇó²âÁ¿µç·ÖеçÁ÷ºÍµçѹ´ÓÁ㿪ʼÁ¬Ðøµ÷½Úʱ£¬±ØÐë²ÉÓ÷Öѹ½Ó·¨£®
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿