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2\u3001\u5047\u8bbe\u6ce2\u6cbf\u7740$x$\u8f74\u65b9\u5411\u4f20\u64ad\uff0c$u(x,t)$\u8868\u793a\u6ce2\u5728$x$\u70b9\u3001$t$\u65f6\u523b\u7684\u632f\u5e45\u3002<\/p>\n

3\u3001\u5047\u8bbe\u6ce2\u662f\u5728\u4e00\u6761\u7ef7\u7d27\u7684\u7ef3\u5b50\u4e0a\u4f20\u64ad\uff0c$T$\u8868\u793a\u7ef3\u5b50\u7684\u5f20\u529b\uff0c$\\mu$\u8868\u793a\u7ef3\u5b50\u7684\u7ebf\u5bc6\u5ea6\u3002\u8bbe\u7ef3\u5b50\u5728$x$\u70b9\u7684\u4f4d\u79fb\u4e3a$y(x,t)$\u3002<\/p>\n

4\u3001\u901a\u8fc7\u725b\u987f\u7b2c\u4e8c\u5b9a\u5f8b\u53ef\u4ee5\u5f97\u5230\uff0c$x$\u70b9\u7684\u52a0\u901f\u5ea6\u662f\u7ef3\u5b50\u53d7\u5230\u7684\u5408\u5916\u529b\u9664\u4ee5\u5355\u4f4d\u8d28\u91cf\u7684\u7ed3\u679c\uff1a$a(x,t)=\\frac{1}{\\mu}T\\frac{\\partial^2y}{\\partialt^2}$\u3002<\/p>\n

5\u3001\u5e94\u7528\u80e1\u514b\u5b9a\u5f8b\uff0c\u53ef\u4ee5\u5f97\u5230\u5355\u4f4d\u957f\u5ea6\u7684\u7ef3\u5b50\u53d7\u5230\u7684\u62c9\u529b\u7b49\u4e8e\u5b83\u7684\u4f38\u957f\u91cf\u4e0e\u5f39\u6027\u7cfb\u6570\u7684\u4e58\u79ef\uff1a$T=E\\frac{\\partialy}{\\partialx}$\uff0c\u5176\u4e2d$E$\u8868\u793a\u7ef3\u5b50\u7684\u5f39\u6027\u7cfb\u6570\u3002<\/p>\n

6\u3001\u5c06$T$\u7684\u8868\u8fbe\u5f0f\u4ee3\u5165$a(x,t)$\u7684\u8868\u8fbe\u5f0f\uff0c\u53ef\u4ee5\u5f97\u5230\uff1a$a(x,t)=\\frac{1}{\\mu}E\\frac{\\partial^2y}{\\partialx^2}\\frac{\\partial^2y}{\\partialt^2}$\u3002<\/p>\n

7\u3001\u5c06\u4e0a\u5f0f\u4e2d\u7684$a(x,t)$\u6362\u6210\u6ce2\u7684\u4f20\u64ad\u901f\u5ea6\u7684\u5e73\u65b9\u4e58\u4ee5\u6ce2\u51fd\u6570\u7684\u4e8c\u9636\u5bfc\u6570\uff0c\u5373$a(x,t)=v^2\\frac{\\partial^2u}{\\partialx^2}$\uff0c\u5176\u4e2d$v$\u8868\u793a\u6ce2\u7684\u4f20\u64ad\u901f\u5ea6\uff0c$u(x,t)$\u8868\u793a\u6ce2\u7684\u632f\u5e45\u3002<\/p>\n

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