瀵艰 澶у濂斤紝绮鹃€夊皬缂栨潵涓哄ぇ瀹惰в绛斾互涓婄殑闂銆傛鐨勬尃搴︾簿纭绠楀叕寮忥紝姊佹尃搴︾殑璁＄畻鍏紡鏄緢澶氫汉杩樹笉鐭ラ亾锛岀幇鍦ㄨ鎴戜滑涓€璧锋潵鐪嬬湅鍚э紒绠€鏀鍦ㄥ悇
澶у濂斤紝绮鹃€夊皬缂栨潵涓哄ぇ瀹惰в绛斾互涓婄殑闂銆傛鐨勬尃搴︾簿纭绠楀叕寮忥紝姊佹尃搴︾殑璁＄畻鍏紡鏄緢澶氫汉杩樹笉鐭ラ亾锛岀幇鍦ㄨ鎴戜滑涓€璧锋潵鐪嬬湅鍚э紒
绠€鏀鍦ㄥ悇绉嶈嵎杞戒綔鐢ㄤ笅鐨勬渶澶ф尃搴﹁绠楀叕寮忥細鍧囧竷鑽疯浇浣滅敤涓嬬殑鏈€澶ф尃搴﹀湪姊佺殑涓儴锛屽叾璁＄畻鍏紡涓猴細 ymax=5ql 4/(384ei)銆傚湪鍏紡涓紝3360ymax鏄涓棿鐨勬渶澶ф尃搴?mm)銆俼涓哄潎鍖€甯冪嚎杞借嵎鐨勬爣鍑嗗€?kn/m)銆俥鏄挗鐨勫脊鎬фā閲忋€傚浜庡伐绋嬬粨鏋勯挗锛孍=2100000 n/mm 2銆侷鏄瀷閽㈢殑鎯€х煩锛屽彲鍦ㄥ瀷閽㈣〃(mm^4).)涓壘鍒拌法涓泦涓嵎杞戒綔鐢ㄤ笅鐨勬渶澶ф尃搴﹀湪姊佺殑璺ㄤ腑锛岃绠楀叕寮忎负锛?ymax=8pl 3/(384 ei)=1pl 3/(48ei)銆傚湪鍏紡涓紝3360ymax鏄璺ㄥ害涓棿鐨勬渶澶ф尃搴?mm)銆俻鏄墍鏈夐泦涓嵎杞芥爣鍑嗗€肩殑鎬诲拰(kn)銆俥鏄挗鐨勫脊鎬фā閲忋€傚浜庡伐绋嬬敤缁撴瀯閽紝e=2100000n/銆?mm^4)鍙湪鍨嬮挗琛ㄤ腑鎵惧埌銆傝法闂寸瓑闂磋窛甯冪疆鐨勪袱涓浉绛夐泦涓嵎杞戒綔鐢ㄤ笅鐨勬渶澶ф尃搴﹀湪姊佺殑涓儴锛屽叾璁＄畻鍏紡涓猴細 ymax=6.81pl 3/(384ei)銆傚湪鍏紡涓紝3360ymax鏄璺ㄥ害鐨勬渶澶ф尃搴?mm)銆俻鏄墍鏈夐泦涓嵎杞界殑鏍囧噯鍊间箣鍜?kn)銆侲涓篍=2100000 n/mm 2銆侷涓哄瀷閽㈢殑鎯€х煩锛屽彲鏌ュ瀷閽㈣〃(mm^4).涓変釜鐩哥瓑闆嗕腑鑽疯浇浣滅敤涓嬬殑鏈€澶ф尃搴﹀湪璺ㄩ棿绛夐棿璺濆竷缃紝璁＄畻鍏紡涓猴細 ymax=6.33pl 3/(384ei)锛屽叾涓?360 ymax涓烘璺ㄧ殑鏈€澶ф尃搴?mm)锛孭涓烘墍鏈夐泦涓嵎杞界殑鏍囧噯鍊间箣鍜?kn)锛孍涓洪挗鏉愮殑寮规€фā閲忥紝瀵逛簬宸ョ▼鐢ㄧ粨鏋勯挗锛孍=210000n/mm 2.i涓洪挗鏉愮殑鎴潰鎯€х煩銆?mm^4)鍙湪鍨嬮挗琛ㄤ腑鎵惧埌銆傛偓鑷傛鍙楀潎甯冭嵎杞藉拰鑷敱绔彈闆嗕腑鑽疯浇鏃讹紝鑷敱绔殑鏈€澶ф尃搴﹀垎鍒负锛屽叾璁＄畻鍏紡涓猴細ymax=1ql 4/(8ei)銆俌max=1pl 3/(3ei)銆俼鏄钩鍧囧竷绾胯礋杞界殑鏍囧噯鍊?kn/m)銆俻鏄墍鏈夐泦涓嵎杞界殑鏍囧噯鍊间箣鍜?kn)銆傚彲浠ユ牴鎹渶澶ф尃搴︽帶鍒?/400锛岃嵎杞藉伐鍐?5kn/m绛変竴浜涜嵎杞藉伐鍐佃繘琛屽弽绠楋紝鐪嬬湅鏄惁鑳芥弧瓒充笂閮ㄨ嵎杞借姹傦紒甯屾湜瀵逛綘鏈夊府鍔╋紝鏈枃鍒版缁撴潫锛屽笇鏈涘澶у鏈夋墍甯姪銆?/p>
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