{"id":345,"date":"2023-06-21T03:56:41","date_gmt":"2023-06-21T03:56:41","guid":{"rendered":"https:\/\/physigeek.com\/cn\/%e6%9c%ba%e6%a2%b0%e4%bc%98%e5%8a%bf\/"},"modified":"2023-06-21T03:56:41","modified_gmt":"2023-06-21T03:56:41","slug":"%e6%9c%ba%e6%a2%b0%e4%bc%98%e5%8a%bf","status":"publish","type":"post","link":"https:\/\/physigeek.com\/cn\/%e6%9c%ba%e6%a2%b0%e4%bc%98%e5%8a%bf\/","title":{"rendered":"\u673a\u68b0\u4f18\u52bf"},"content":{"rendered":"<p>\u672c\u6587\u89e3\u91ca\u4e86\u4ec0\u4e48\u662f\u673a\u68b0\u4f18\u52bf\u3002\u56e0\u6b64\uff0c\u60a8\u5c06\u4e86\u89e3\u673a\u68b0\u4f18\u52bf\u7684\u542b\u4e49\u3001\u5982\u4f55\u8ba1\u7b97\u673a\u68b0\u4f18\u52bf\u4ee5\u53ca\u7406\u60f3\u673a\u68b0\u4f18\u52bf\u4e0e\u5b9e\u9645\u673a\u68b0\u4f18\u52bf\u4e4b\u95f4\u7684\u533a\u522b\u3002<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue-es-la-ventaja-mecanica\"><\/span>\u4ec0\u4e48\u662f\u673a\u68b0\u4f18\u52bf\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u673a\u68b0\u4f18\u52bf<\/strong>\u662f\u8868\u793a\u65bd\u52a0\u5230\u673a\u6784\u7684\u529b\u6240\u4e58\u4ee5\u7684\u7cfb\u6570\u7684\u91cf\u5ea6\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u673a\u68b0\u6548\u76ca\u662f\u673a\u6784\u7684\u7279\u5f81\u53c2\u6570\uff0c\u8868\u793a\u4f7f\u7528\u8be5\u673a\u6784\u7684\u529b\u7684\u653e\u5927\u7a0b\u5ea6\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u5982\u679c<a href=\"https:\/\/physigeek.com\/cn\/\u7b80\u5355\u7684\u673a\u5668\/\">\u7b80\u5355\u673a\u5668<\/a>\u7684\u673a\u68b0\u6548\u76ca\u7b49\u4e8e 2\uff0c\u8fd9\u610f\u5473\u7740\u8be5\u673a\u6784\u5c06\u65bd\u52a0\u7684\u529b\u52a0\u500d\u3002<\/p>\n<p>\u901a\u5e38\uff0c\u7b80\u5355\u7684\u673a\u5668\u7528\u4e8e\u589e\u52a0\u529b\u7684\u503c\uff0c\u4f8b\u5982\uff0c<a href=\"https:\/\/physigeek.com\/cn\/\u63d0\u5347\/\">\u8d77\u91cd\u673a<\/a>\u53ef\u4ee5\u8ba9\u60a8\u8f7b\u677e\u79fb\u52a8\u91cd\u7269\u3002\u56e0\u6b64\uff0c\u673a\u68b0\u6548\u76ca\u662f\u6307\u793a\u65bd\u52a0\u5230\u673a\u68b0\u88c5\u7f6e\u7684\u529b\u589e\u52a0\u7684\u56e0\u7d20\u7684\u503c\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Formula-de-la-ventaja-mecanica\"><\/span>\u673a\u68b0\u4f18\u52bf\u516c\u5f0f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u673a\u68b0\u6548\u76ca\u662f\u673a\u6784\u7684\u8f93\u51fa\u529b\u4e0e\u8f93\u5165\u529b\u7684\u6bd4\u7387\u3002\u56e0\u6b64\uff0c\u673a\u68b0\u6548\u76ca\u7b49\u4e8e\u8f93\u51fa\u529b\u4e0e\u8f93\u5165\u529b\u4e4b\u6bd4\u3002<\/p>\n<p>\u56e0\u6b64\uff0c<strong>\u8ba1\u7b97\u673a\u6784\u673a\u68b0\u6548\u76ca\u7684\u516c\u5f0f<\/strong>\u5982\u4e0b\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-e69615adb7195faa10ab23bb2d0c127a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"VM=\\cfrac{F_s}{F_e}\" title=\"Rendered by QuickLaTeX.com\" height=\"41\" width=\"78\" style=\"vertical-align: -15px;\"><\/p>\n<\/p>\n<p>\u7b80\u5355\u673a\u5668\u7684\u673a\u68b0\u6548\u76ca\u4e5f\u53ef\u4ee5\u901a\u8fc7\u5c06\u65bd\u52a0\u7684\u529b\u7684\u901f\u5ea6\u9664\u4ee5\u8d1f\u8f7d\u79fb\u52a8\u7684\u901f\u5ea6\u6765\u8ba1\u7b97\u3002\u540c\u6837\uff0c\u8be5\u8868\u8fbe\u5f0f\u4e5f\u7b49\u4e8e\u65bd\u52a0\u529b\u70b9\u7684\u4f4d\u79fb\u9664\u4ee5\u8f7d\u8377\u7684\u4f4d\u79fb\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-49a79c6eb08e6c7dfa1dc38c72dfa12d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"VM=\\cfrac{F_s}{F_e}=\\cfrac{v_e}{v_s}=\\cfrac{d_e}{d_s}\" title=\"Rendered by QuickLaTeX.com\" height=\"41\" width=\"162\" style=\"vertical-align: -15px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:5px\">\u91d1\u5b50\uff1a <\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-500d3f864dff26e3d484896a16aa89bb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"VM\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"33\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u662f\u673a\u68b0\u4f18\u52bf\u3002 <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-7fd810be78178579eb8b816e030d2e47_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_s\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"17\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u662f\u8f93\u51fa\u529b\u3002 <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-a7461483124af31f0d50f7ea272abe88_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_e\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"17\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u662f\u8f93\u5165\u529b\u3002 <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-f0fb407b2238594ffcad367247047a66_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"v_e\" title=\"Rendered by QuickLaTeX.com\" height=\"11\" width=\"15\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u662f\u8f93\u5165\u901f\u5ea6\u3002 <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-f8074c6444affce8b175811c73865d6f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"v_s\" title=\"Rendered by QuickLaTeX.com\" height=\"11\" width=\"15\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u662f\u9000\u51fa\u901f\u5ea6\u3002 <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-b24a5a6c9ba906559f3e7e1d1526215e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"d_e\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"15\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u662f\u6761\u76ee\u7ecf\u8fc7\u7684\u8ddd\u79bb\u3002 <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-9cced61ff93d503087688559c27938d8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"d_s\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"15\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u662f\u8f93\u51fa\u884c\u8fdb\u7684\u8ddd\u79bb\u3002<\/span><\/li>\n<\/ul>\n<p>\u53e6\u4e00\u65b9\u9762\uff0c\u5982\u679c\u6211\u4eec\u60f3\u4f20\u9012\u529b\u77e9\u800c\u4e0d\u662f\u529b\uff0c\u5219\u901a\u8fc7\u5c06\u8f93\u51fa\u529b\u77e9\u9664\u4ee5\u8f93\u5165\u529b\u77e9\u6765\u8ba1\u7b97\u673a\u68b0\u4f18\u52bf\u3002\u4f8b\u5982\uff0c\u9f7f\u8f6e\u7684\u673a\u68b0\u6548\u76ca\u662f\u901a\u8fc7\u4f20\u9012\u529b\u77e9\u7684\u6bd4\u7387\u6765\u8861\u91cf\u7684\u3002<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-ce804815f519a2d3de8ecd89712cec39_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"VM=\\cfrac{M_s}{M_e}=\\cfrac{\\omega_e}{\\omega_s}\" title=\"Rendered by QuickLaTeX.com\" height=\"41\" width=\"128\" style=\"vertical-align: -15px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:5px\">\u91d1\u5b50\uff1a <\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-500d3f864dff26e3d484896a16aa89bb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"VM\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"33\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u662f\u673a\u68b0\u4f18\u52bf\u3002 <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-42cd8a130aafc0647b524300a8f11904_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"M_s\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"23\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u662f\u91ca\u653e\u65f6\u95f4\u3002 <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-b181a2eb5b07a415c45d53de9ee4763a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"M_e\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"23\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u662f\u8fdb\u5165\u65f6\u95f4\u3002 <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-cae20b713a1dc40d4936cd350395dec8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\omega_e\" title=\"Rendered by QuickLaTeX.com\" height=\"11\" width=\"17\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u662f\u8f93\u5165\u89d2\u901f\u5ea6\u3002 <\/span><\/li>\n<li style=\"margin-bottom:5px\"><span style=\"color:#101010;font-weight: normal;\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-92a244bfae254aef445ef84c075111a3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\omega_s\" title=\"Rendered by QuickLaTeX.com\" height=\"11\" width=\"17\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u662f\u9000\u51fa\u89d2\u901f\u5ea6\u3002<\/span><\/li>\n<\/ul>\n<p>\u90a3\u4e48\uff0c\u6839\u636e\u673a\u68b0\u6548\u76ca\u516c\u5f0f\uff0c\u53ef\u4ee5\u63a8\u5bfc\u51fa\u4ee5\u4e0b\u5173\u7cfb\uff1a<\/p>\n<ul style=\"color:#4fd12f; font-weight: bold;\">\n<li style=\"margin-bottom:20px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>VM&gt;1<\/strong> \uff1a\u8f93\u51fa\u529b\u5927\u4e8e\u65bd\u52a0\u7684\u529b\uff0c\u56e0\u6b64\u8be5\u673a\u6784\u589e\u52a0\u529b\u7684\u5927\u5c0f\u3002\u53e6\u4e00\u65b9\u9762\uff0c\u8d1f\u8f7d\u884c\u8fdb\u7684\u8ddd\u79bb\u5c0f\u4e8e\u65bd\u52a0\u529b\u7684\u70b9\u884c\u8fdb\u7684\u8ddd\u79bb\u3002<\/span><\/li>\n<li style=\"margin-bottom:20px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>VM&lt;1<\/strong> \uff1a\u8f93\u51fa\u529b\u5c0f\u4e8e\u65bd\u52a0\u529b\uff0c\u56e0\u6b64\u673a\u6784\u51cf\u5c0f\u529b\u503c\u3002\u7136\u800c\uff0c\u6211\u4eec\u83b7\u5f97\u7684\u8d1f\u8f7d\u4f4d\u79fb\u5927\u4e8e\u529b\u65bd\u52a0\u70b9\u5904\u4ea7\u751f\u7684\u4f4d\u79fb\u3002<\/span><\/li>\n<li style=\"margin-bottom:20px\"> <span style=\"color:#101010;font-weight: normal;\"><strong>VM=1<\/strong> \uff1a\u673a\u6784\u7684\u8f93\u51fa\u529b\u7b49\u4e8e\u65bd\u52a0\u5728\u5176\u4e0a\u7684\u529b\u3002\u8d1f\u8f7d\u7684\u4f4d\u79fb\u548c\u529b\u7684\u4f5c\u7528\u70b9\u4e5f\u76f8\u540c\u3002\u5c3d\u7ba1\u8fd9\u4e9b\u7c7b\u578b\u7684\u673a\u6784\u6ca1\u6709\u63d0\u4f9b\u673a\u68b0\u4f18\u52bf\uff0c\u4f46\u5b83\u4eec\u901a\u5e38\u7528\u4e8e\u66f4\u8212\u9002\u5730\u65bd\u52a0\u529b\u3002\u4f8b\u5982\uff0c\u4e00\u4e2a<a href=\"https:\/\/physigeek.com\/cn\/\u6ed1\u8f6e\/\">\u7b80\u5355\u7684\u6ed1\u8f6e<\/a>\u5141\u8bb8\u5411\u4e0b\u7684\u529b\u6765\u63d0\u5347\u91cd\u7269\uff0c\u4ece\u800c\u66f4\u5bb9\u6613\u63d0\u5347\u8d1f\u8f7d\u3002<\/span> <\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejemplos-de-ventaja-mecanica\"><\/span>\u673a\u68b0\u4f18\u52bf\u7684\u4f8b\u5b50<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u4e86\u89e3\u4e86\u673a\u68b0\u6548\u76ca\u7684\u5b9a\u4e49\u53ca\u5176\u516c\u5f0f\u540e\uff0c\u6211\u4eec\u73b0\u5728\u5c06\u770b\u5230\u4e24\u4e2a\u8ba1\u7b97\u673a\u6784\u673a\u68b0\u6548\u76ca\u7684\u793a\u4f8b\u3002<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Palanca\"><\/span>\u4e3e\u8d77<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>\u6760\u6746\u7684\u652f\u70b9\u8ddd\u65bd\u529b\u70b9 70 \u5398\u7c73\uff0c\u8ddd\u8d1f\u8f7d 30 \u5398\u7c73\u3002\u6760\u6746\u7684\u673a\u68b0\u4f18\u52bf\u662f\u4ec0\u4e48\uff1f<\/li>\n<\/ul>\n<p>\u5728\u6760\u6746\u4e2d\uff0c\u901a\u8fc7\u52a8\u529b\u81c2\u7684\u8f93\u5165\u529b\u7b49\u4e8e\u901a\u8fc7\u963b\u529b\u81c2\u7684\u8f93\u51fa\u529b\uff08\u6760\u6746\u5b9a\u5f8b\uff09\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5728\u8fd9\u79cd\u7c7b\u578b\u7684\u7b80\u5355\u673a\u5668\u4e2d\uff0c\u6ee1\u8db3\u4ee5\u4e0b\u65b9\u7a0b\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-1cca3975321b9b4c1826d726153b8812_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"F_e\\cdot B_p=F_s\\cdot B_r\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"127\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p>\u56e0\u6b64\uff0c\u6839\u636e\u524d\u9762\u7684\u7b49\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u63a8\u65ad\u51fa\u6760\u6746\u7684\u673a\u68b0\u6548\u76ca\u53ef\u4ee5\u7531\u4ee5\u4e0b\u8868\u8fbe\u5f0f\u786e\u5b9a\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-21acc35962741d8fbe01fb4adbf0e085_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"VM=\\cfrac{F_s}{F_e}=\\cfrac{B_p}{B_r}\" title=\"Rendered by QuickLaTeX.com\" height=\"41\" width=\"125\" style=\"vertical-align: -15px;\"><\/p>\n<\/p>\n<p>\u95ee\u9898\u9648\u8ff0\u544a\u8bc9\u6211\u4eec\u6760\u6746\u7684\u52a8\u529b\u81c2\u662f70\u5398\u7c73\uff0c\u963b\u529b\u81c2\u662f30\u5398\u7c73\u3002\u56e0\u6b64\uff0c\u901a\u8fc7\u5c06\u6570\u636e\u4ee3\u5165\u516c\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u6c42\u51fa\u6760\u6746\u7684\u673a\u68b0\u6548\u76ca\uff1a <\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-24cc43684b2fdca85799535e18d99846_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"VM=\\cfrac{F_s}{F_e}=\\cfrac{B_p}{B_r}=\\cfrac{70}{30}=2.33\" title=\"Rendered by QuickLaTeX.com\" height=\"42\" width=\"223\" style=\"vertical-align: -15px;\"><\/p>\n<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ruedas-de-friccion\"><\/span>\u6469\u64e6\u8f6e<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>\u5982\u679c\u8f93\u5165\u8f6e\u76f4\u5f84\u4e3a 0.35 m\uff0c\u8f93\u51fa\u8f6e\u76f4\u5f84\u4e3a 0.60 m\uff0c\u6469\u64e6\u8f6e\u673a\u6784\u7684\u673a\u68b0\u4f18\u52bf\u662f\u591a\u5c11\uff1f<\/li>\n<\/ul>\n<p><a href=\"https:\/\/physigeek.com\/cn\">\u6469\u64e6\u8f6e\u7684\u516c\u5f0f<\/a>\u4f7f\u6211\u4eec\u80fd\u591f\u5c06\u8f6e\u5b50\u7684\u76f4\u5f84\u4e0e\u5176\u89d2\u901f\u5ea6\u8054\u7cfb\u8d77\u6765\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-75192997f1ea1d96e7b6e06010460785_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"D_e\\cdot \\omega_e =D_s\\cdot \\omega_s\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"128\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p>\u56e0\u6b64\uff0c\u7531\u4e8e\u6211\u4eec\u611f\u5174\u8da3\u7684\u662f\u4f20\u9012\u529b\u77e9\u7684\u673a\u5236\uff0c\u56e0\u6b64\u673a\u68b0\u4f18\u52bf\u4f7f\u7528\u4ee5\u4e0b\u8868\u8fbe\u5f0f\u8ba1\u7b97\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-524a732c1e98cc788e2147ad52305e64_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"VM=\\cfrac{M_s}{M_e}=\\cfrac{\\omega_e}{\\omega_s}=\\cfrac{D_s}{D_e}\" title=\"Rendered by QuickLaTeX.com\" height=\"41\" width=\"175\" style=\"vertical-align: -15px;\"><\/p>\n<\/p>\n<p>\u56e0\u6b64\uff0c\u8be5\u673a\u6784\u7684\u673a\u68b0\u4f18\u52bf\u503c\u4e3a\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-7cb9af78a6c9d59a43e6d004caaa8db8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"VM=\\cfrac{M_s}{M_e}=\\cfrac{w_e}{w_s}=\\cfrac{D_s}{D_e}=\\cfrac{0.60}{0.35}=1.71[\/ latex] \n\n<h2 class=&quot;wp-block-heading&quot;><span class=&quot;ez-toc-section&quot; id=&quot;Ventaja-mecanica-real-y-ventaja-mecanica-ideal&quot;><\/span> Avantage m\u00e9canique r\u00e9el et avantage m\u00e9canique id\u00e9al<span class=&quot;ez-toc-section-end&quot;><\/span><\/h2>\n<p> L&#8217;avantage m\u00e9canique d&#8217;un m\u00e9canisme peut \u00eatre class\u00e9 en deux types :<\/p>\n<ul style=&quot;color:#4fd12f; font-weight: bold;&quot;>\n<li style=&quot;margin-bottom:20px&quot;> <span style=&quot;color:#101010;font-weight: normal;&quot;><strong>Avantage m\u00e9canique id\u00e9al<\/strong> : \u00e9galement appel\u00e9 avantage m\u00e9canique th\u00e9orique, lors du calcul de ce type d&#8217;avantage m\u00e9canique, on suppose des conditions id\u00e9ales (absence de frottement, de vibration, etc.). Par cons\u00e9quent, l&#8217;avantage m\u00e9canique id\u00e9al est \u00e9quivalent au rapport entre la force de sortie et la force d&#8217;entr\u00e9e.<\/span><\/li>\n<li style=&quot;margin-bottom:20px&quot;> <span style=&quot;color:#101010;font-weight: normal;&quot;><strong>Avantage m\u00e9canique r\u00e9el<\/strong> &#8211; \u00c9galement appel\u00e9es avantage m\u00e9canique pratique, les pertes du syst\u00e8me sont prises en compte dans le calcul de l&#8217;avantage m\u00e9canique. Par cons\u00e9quent, l&#8217;avantage m\u00e9canique r\u00e9el est toujours inf\u00e9rieur \u00e0 l&#8217;avantage m\u00e9canique id\u00e9al.<\/span><\/li>\n<\/ul>\n<p> Dans une situation r\u00e9elle, tout m\u00e9canisme subit des pertes d&#8217;\u00e9nergie dues au frottement, \u00e0 l&#8217;usure et \u00e0 d&#8217;autres facteurs. Ainsi, pour calculer l&#8217;avantage m\u00e9canique r\u00e9el d&#8217;un m\u00e9canisme, la force d&#8217;entr\u00e9e appliqu\u00e9e au syst\u00e8me et la force de sortie du syst\u00e8me doivent \u00eatre mesur\u00e9es exp\u00e9rimentalement, et la relation entre les deux sera la valeur de l&#8217;avantage m\u00e9canique r\u00e9el. [latex]VM_{real}=\\cfrac{F_{s_{real}}}{F_{e_{real}}}&#8221; title=&#8221;Rendered by QuickLaTeX.com&#8221; height=&#8221;392&#8243; width=&#8221;3025&#8243; style=&#8221;vertical-align: -17px;&#8221;><\/p>\n<\/p>\n<p>\u56e0\u6b64\uff0c\u673a\u6784\u7684\u673a\u68b0\u6548\u7387\u5b9a\u4e49\u4e3a\u5b9e\u9645\u673a\u68b0\u6548\u76ca\u4e0e\u7406\u60f3\u673a\u68b0\u6548\u76ca\u4e4b\u95f4\u7684\u6bd4\u7387\uff1a<\/p>\n<p class=\"has-text-align-center\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/physigeek.com\/wp-content\/ql-cache\/quicklatex.com-f25fa279101b4fd8c48956f8c18ecb7d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\eta=\\cfrac{VM_{real}}{VM_{id\u00e9al}}\" title=\"Rendered by QuickLaTeX.com\" height=\"41\" width=\"98\" style=\"vertical-align: -15px;\"><\/p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u89e3\u91ca\u4e86\u4ec0\u4e48\u662f\u673a\u68b0\u4f18\u52bf\u3002\u56e0\u6b64\uff0c\u60a8\u5c06\u4e86\u89e3\u673a\u68b0\u4f18\u52bf\u7684\u542b\u4e49\u3001\u5982\u4f55\u8ba1\u7b97\u673a\u68b0\u4f18\u52bf\u4ee5\u53ca\u7406\u60f3\u673a\u68b0\u4f18\u52bf\u4e0e\u5b9e\u9645\u673a\u68b0\u4f18\u52bf\u4e4b\u95f4\u7684\u533a &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/physigeek.com\/cn\/%e6%9c%ba%e6%a2%b0%e4%bc%98%e5%8a%bf\/\"> <span class=\"screen-reader-text\">\u673a\u68b0\u4f18\u52bf<\/span> \u67e5\u770b\u5168\u6587 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