{"id":3272,"date":"2021-08-16T01:52:56","date_gmt":"2021-08-16T01:52:56","guid":{"rendered":""},"modified":"2021-08-16T09:51:19","modified_gmt":"2021-08-16T01:51:19","slug":"%e5%8f%af%e6%8e%a7%e7%a1%85%e6%95%b4%e6%b5%81%e7%94%b5%e8%b7%af%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=3272","title":{"rendered":"\u53ef\u63a7\u7845\u6574\u6d41\u7535\u8def\u8be6\u89e3"},"content":{"rendered":"
\n\t1\u3001\u5de5\u4f5c\u539f\u7406<\/div>\n
\n\t\u7535\u8def\u548c\u6ce2\u5f62\u5982\u56fe 1 \u6240\u793a\uff0c\u8bbe u2= U2sinω\u3002<\/div>\n
\n\t\u6b63\u534a\u5468\uff1a<\/div>\n
\n\t0\uff1ct\uff1ct1,ug=0,T \u6b63\u5411\u963b\u65ad\uff0cid=0,uT=u2,ud=0<\/div>\n
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\n\t\u8d1f\u534a\u5468\uff1a<\/div>\n
\n\tπ≤t\uff1c2π\u5f53 u2 \u81ea\u7136\u8fc7\u96f6\u65f6\uff0cT \u81ea\u884c\u5173\u65ad\u800c\u5904\u4e8e\u53cd\u5411\u963b\u65ad\u72b6\u6001\uff0cut=0,ud=0,id=0\u3002<\/div>\n
\n\t\u4ece 0 \u5230 t1 \u7684\u7535\u5ea6\u89d2\u4e3aα\uff0c\u53eb\u63a7\u5236\u89d2\u3002\u4ece t1 \u5230π\u7684\u7535\u5ea6\u89d2\u4e3aθ\uff0c\u53eb\u5bfc\u901a\u89d2\uff0c\u663e\u7136 α+θ=π\u3002\u5f53α=0\uff0cθ=180 \u5ea6\u65f6\uff0c\u53ef\u63a7\u7845\u5168\u5bfc\u901a\uff0c\u4e0e\u4e0d\u63a7\u6574\u6d41\u4e00\u6837\uff0c\u5f53α=180 \u5ea6\uff0cθ=0 \u5ea6\u65f6\uff0c\u53ef<\/div>\n
\n\t\u63a7\u7845\u5168\u5173\u65ad\uff0c\u8f93\u51fa\u7535\u538b\u4e3a\u96f6\u3002
\n\t\"\"<\/p>\n
\n\t\t2\u3001\u5404\u7535\u91cf\u5173\u7cfb<\/div>\n
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\n\t\tud=(1\/2π) u2sinωtd(ωt)=(0.45u2)[1+cosα)\/2]-------------\u5f0f 1<\/div>\n
\n\t\t\u7531\u4e0a\u5f0f\u53ef\u89c1\uff0c\u8d1f\u8f7d\u7535\u963b Rd\u4e0a\u7684\u76f4\u6d41\u7535\u538b\u662f\u63a7\u5236\u89d2α\u7684\u51fd\u6570\uff0c\u6240\u4ee5\u6539\u53d8α\u7684\u5927\u5c0f\u5c31\u53ef\u4ee5\u63a7\u5236\u76f4<\/div>\n
\n\t\t\u6d41\u7535\u538bUd \u7684\u6570\u503c\uff0c\u8fd9\u5c31\u662f\u53ef\u63a7\u6574\u6d41\u610f\u4e49\u4e4b\u6240\u5728\u3002<\/div>\n
\n\t\t\u6d41\u8fc7 Rd\u7684\u76f4\u6d41\u7535\u6d41 Id\uff1a<\/div>\n
\n\t\tId=(Ud\/Rd)=0.45(u2\/Rd)×[(1+cosα)\/2]--------------------------\u5f0f 2<\/div>\n
\n\t\tUd\u7684\u6709\u6548\u503c\uff08\u5747\u65b9\u6839\u503c\uff09\uff1a
\n\t\t\"\"
\n\t\t\u6d41\u8fc7 Rd\u7684\u7535\u6d41\u6709\u6548\u503c<\/p>\n
\n\t\t\tI=U\/Rd=(U2\/Rd) ---------------------------------\u5f0f 4<\/div>\n
\n\t\t\t\u7531\u4e8e\u7535\u6e90\u63d0\u4f9b\u7684\u6709\u529f\u529f\u7387 P=UI\uff0c\u7535\u6e90\u89c6\u5728\u529f\u7387 S=U2I\uff08U2 \u662f\u7535\u6e90\u7535\u538b\u6709\u6548\u503c\uff09\uff0c\u6240\u4ee5\u529f\u7387\u56e0<\/div>\n
\n\t\t\t\u6570\uff1a<\/div>\n
\n\t\t\tcosψ=P\/S= -------------------------------------\u5f0f 5<\/div>\n
\n\t\t\t\u7531\u4e0a\u5f0f\u53ef\u89c1\uff0c\u529f\u7387\u56e0\u6570 cosψ\u4e5f\u662fα\u7684\u51fd\u6570\uff0c\u5f53α=0\u65f6\uff0ccosψ=0.707\u3002\u663e\u7136\uff0c\u5bf9\u4e8e\u7535\u963b\u6027\u8d1f<\/div>\n
\n\t\t\t\u8f7d\uff0c\u5355\u76f8\u534a\u6ce2\u53ef\u63a7\u6574\u6d41\u7684\u529f\u7387\u56e0\u6570\u4e5f\u4e0d\u4f1a\u662f 1\u3002<\/div>\n
\n\t\t\t\u6bd4\u503c Ud\/U\u3001I\/Id \u548c cosψ\u968fα\u7684\u53d8\u5316\u6570\u503c\uff0c\u89c1\u8868\u4e00\uff0c\u5b83\u4eec\u76f8\u5e94\u7684\u5173\u7cfb\u66f2\u7ebf\uff0c\u5982\u56fe 2\u6240\u793a<\/div>\n
\n\t\t\t\u8868\u4e00 Ud\/U\u3001I\/Id\u548c cosψ\u7684\u5173\u7cfb\uff0c\u8be6\u7ec6\u8bf7\u770b\u672c\u9875PDF\u6587\u4ef6<\/div>\n<\/p><\/div>\n<\/div>\n

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1\u3001\u5de5\u4f5c\u539f\u7406 \u7535\u8def\u548c\u6ce2\u5f62\u5982\u56fe 1 \u6240\u793a\uff0c\u8bbe u2= U2sin\u3002 \u6b63\u534a\u5468\uff1a 0\uff1ct\uff1ct1,ug=0,T \u6b63\u5411\u963b\u65ad\uff0cid=0,uT=u2,ud=0 t=t \u65f6,\u52a0\u5165 ug \u8109\u51b2\uff0cT \u5bfc\u901a\uff0c\u5ffd\u7565\u5176\u6b63\u5411\u538b\u964d\uff0cuT=0,ud=u2,id=ud\/Rd\u3002 \u8d1f\u534a\u5468\uff1a t\uff1c2\u5f53 u2 \u81ea<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"_links":{"self":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/3272"}],"collection":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3272"}],"version-history":[{"count":0,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/3272\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3272"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}