{"id":729836,"date":"2024-11-01T23:56:29","date_gmt":"2024-11-01T22:56:29","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=729836"},"modified":"2024-11-01T23:56:29","modified_gmt":"2024-11-01T22:56:29","slug":"%e5%9f%ba%e7%a1%80%e8%ae%be%e6%96%bd%e7%9a%84%e7%83%ad%e9%9f%a7%e6%80%a7","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e5%9f%ba%e7%a1%80%e8%ae%be%e6%96%bd%e7%9a%84%e7%83%ad%e9%9f%a7%e6%80%a7\/","title":{"rendered":"\u57fa\u7840\u8bbe\u65bd\u7684\u70ed\u97e7\u6027"},"content":{"rendered":"<p class=\"sidekick\">\u57fa\u7840\u8bbe\u65bd\u7684\u70ed\u97e7\u6027\u6307\u5728\u9ad8\u6e29\u6216\u6781\u7aef\u6c14\u5019\u6761\u4ef6\u4e0b\u7ef4\u62a4\u7ed3\u6784\u548c\u7cfb\u7edf\u6b63\u5e38\u529f\u80fd\u7684\u80fd\u529b\uff0c\u786e\u4fdd\u80fd\u6e90\u3001\u4ea4\u901a\u548c\u5efa\u7b51\u7684\u6709\u6548\u8fd0\u884c\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u57fa\u7840\u8bbe\u65bd\u7684\u70ed\u97e7\u6027.png\" alt=\"\u57fa\u7840\u8bbe\u65bd\u7684\u70ed\u97e7\u6027\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u57fa\u7840\u8bbe\u65bd\u7684\u70ed\u97e7\u6027<\/h2>\n<p>\u70ed\u97e7\u6027\u662f\u6307\u57fa\u7840\u8bbe\u65bd\u5728\u6781\u7aef\u6e29\u5ea6\u6761\u4ef6\u4e0b\u7684\u8010\u53d7\u80fd\u529b\u548c\u9002\u5e94\u6027\u3002\u968f\u7740\u6c14\u5019\u53d8\u5316\u5f15\u8d77\u7684\u6781\u7aef\u5929\u6c14\u4e8b\u4ef6\u9891\u7387\u589e\u52a0\uff0c\u7814\u7a76\u548c\u63d0\u9ad8\u57fa\u7840\u8bbe\u65bd\u7684\u70ed\u97e7\u6027\u53d8\u5f97\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n<h2>\u6982\u8ff0<\/h2>\n<p>\u57fa\u7840\u8bbe\u65bd\u5305\u62ec\u9053\u8def\u3001\u6865\u6881\u3001\u5efa\u7b51\u7269\u3001\u8f93\u7535\u7ebf\u8def\u7b49\uff0c\u8fd9\u4e9b\u8bbe\u65bd\u90fd\u9700\u8981\u5728\u5404\u79cd\u6e29\u5ea6\u6761\u4ef6\u4e0b\u4fdd\u6301\u529f\u80fd\u548c\u7ed3\u6784\u5b8c\u6574\u6027\u3002\u70ed\u97e7\u6027\u6d89\u53ca\u6750\u6599\u79d1\u5b66\u3001\u7ed3\u6784\u5de5\u7a0b\u3001\u4ee5\u53ca\u70ed\u529b\u5b66\u7b49\u591a\u4e2a\u5b66\u79d1\u7684\u4ea4\u53c9\u7814\u7a76\u3002<\/p>\n<h2>\u6750\u6599\u79d1\u5b66\u7684\u89d2\u8272<\/h2>\n<p>\u9009\u7528\u5408\u9002\u7684\u5efa\u7b51\u6750\u6599\u662f\u63d0\u9ad8\u57fa\u7840\u8bbe\u65bd\u70ed\u97e7\u6027\u7684\u5173\u952e\u3002\u4f8b\u5982\uff0c\u67d0\u4e9b\u9ad8\u5206\u5b50\u6750\u6599\u5728\u9ad8\u6e29\u4e0b\u6613\u53d8\u5f62\uff0c\u800c\u91d1\u5c5e\u6750\u6599\u5219\u53ef\u80fd\u5728\u4f4e\u6e29\u4e0b\u53d8\u8106\u3002\u56e0\u6b64\uff0c\u6750\u6599\u7684\u9009\u62e9\u5fc5\u987b\u8003\u8651\u5230\u5176\u70ed\u81a8\u80c0\u7cfb\u6570\u3001\u5bfc\u70ed\u6027\u548c\u6613\u71c3\u6027\u7b49\u7279\u6027\u3002<\/p>\n<h2>\u70ed\u81a8\u80c0<\/h2>\n<p>\u4e0d\u540c\u6750\u6599\u7684\u70ed\u81a8\u80c0\u7cfb\u6570\u4e0d\u540c\uff0c\u4f1a\u5bfc\u81f4\u7ed3\u6784\u6027\u7684\u53d8\u5316\u3002\u4f8b\u5982\uff0c\u6df7\u51dd\u571f\u548c\u94a2\u6750\u7684\u70ed\u81a8\u80c0\u7cfb\u6570\u4e0d\u540c\uff0c\u53ef\u80fd\u4f1a\u5728\u9ad8\u6e29\u4e0b\u5f15\u53d1\u590d\u6742\u7684\u5e94\u529b\u548c\u5f62\u53d8\u3002\u70ed\u81a8\u80c0\u7cfb\u6570\u4e00\u822c\u7528\\(\\alpha\\)\u8868\u793a\uff0c\u5176\u8ba1\u7b97\u65b9\u5f0f\u4e3a\uff1a<\/p>\n<p>\\[ \\Delta L = \\alpha \\cdot L \\cdot \\Delta T \\]\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>\\(\\Delta L\\)\u8868\u793a\u957f\u5ea6\u7684\u53d8\u5316<\/li>\n<li> \\(\\alpha\\)\u8868\u793a\u70ed\u81a8\u80c0\u7cfb\u6570<\/li>\n<li> \\(L\\)\u8868\u793a\u521d\u59cb\u957f\u5ea6<\/li>\n<li> \\(\\Delta T\\)\u8868\u793a\u6e29\u5ea6\u53d8\u5316<\/li>\n<\/ul>\n<h2>\u70ed\u5e94\u529b\u53ca\u5176\u7ba1\u7406<\/h2>\n<p>\u4e0d\u540c\u6750\u6599\u7684\u70ed\u81a8\u80c0\u4f1a\u5f15\u8d77\u70ed\u5e94\u529b\u3002\u4f8b\u5982\uff0c\u5728\u6865\u6881\u8bbe\u8ba1\u4e2d\u8981\u8003\u8651\u94a2\u6750\u7684\u70ed\u80c0\u51b7\u7f29\uff0c\u4ee5\u907f\u514d\u4ea7\u751f\u8fc7\u5927\u7684\u5e94\u529b\u3002\u5e94\u529b\u7684\u8ba1\u7b97\u516c\u5f0f\u4e3a\uff1a<\/p>\n<p>\\[ \\sigma = E \\cdot \\alpha \\cdot \\Delta T \\]\n<p>\u5176\u4e2d\\(\\sigma\\)\u8868\u793a\u5e94\u529b\uff0c\\(E\\)\u8868\u793a\u6750\u6599\u7684\u5f39\u6027\u6a21\u91cf\uff0c\\(\\alpha\\)\u8868\u793a\u70ed\u81a8\u80c0\u7cfb\u6570\uff0c\\(\\Delta 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