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1銆佸お闄借兘璺噲鐨勫厜椤壊鎬ф瘮楂樺閳夌噲楂樺緢澶�锛岄珮澹撻垑鐕堥’鑹叉寚鏁�(sh霉)鍙23鎿哄竷锛岃€屽お闄借兘璺噲椤壊鎸囨暩(sh霉)鍒伴仈(d谩)75浠ヤ笂锛屽緸瑕栬蹇冩€濊搴﹁€冩叜锛屽埌閬�(d谩)骞崇瓑浜害锛屽お闄借兘璺噲鐨勫厜鐓у害鍧囧嫽鑳藉姣旈珮澹撻垑鐕堜笅闄�20%浠ヤ笂銆�
2銆佸お闄借兘璺噲鐨勫厜琛板皬锛屼竴骞寸殑鍏夎“涓嶅埌3%锛岄亱(y霉n)鐢�10骞翠粛鍒伴仈(d谩)璺€旈亱(y霉n)鐢ㄧ収搴﹁姹�锛岃€岄珮澹撻垑鐕堢伀琛板ぇ锛屼竴骞存摵甯冨凡缍�(j墨ng)涓嬮檷30%浠ヤ笂锛屽洜鑰�锛屽お闄借兘璺噲鍦ㄩ亱(y霉n)鐢ㄥ姛鐜囩殑瑕�(gu墨)鍔冧笂鑳藉姣旈珮澹撻垑鐕堜綆銆�
3銆佸お闄借兘璺噲鏈変富鍕曟搷鎺х瘈(ji茅)鑳借ō(sh猫)鍌�,鑳藉(sh铆)濡備粖婊挎剰涓嶄竴妯ｆ檪娈电収鏄庤姹傛儏娉佷笅鍙兘鐨勪笅闄嶅姛鐜囷紝绡€(ji茅)绱勯浕鑳�銆係park 鏅鸿兘澶櫧鑳借矾鐕堝彲瀵�(sh铆)鐝�(xi脿n)闆昏叇瑾�(di脿o)鍏�锛屽垎鏅傞枔娈垫搷鎺э紝鍏夌窔鎿嶆帶锛屾韩搴︽搷鎺�锛岄暦閫旀搷鎺�锛屼富鍕曞贰妾㈢瓑浜烘€у寲鍔熻兘銆�
璺噲鐨勫弮鏁�(sh霉)濡備笅锛�
闆绘睜鏉垮偩瑙扐 = 35° 鐕堟】楂樺害 = 5m
瑷�(sh猫)瑷�(j矛)閬稿彇鐕堟】搴曢儴鐒婄斧瀵害δ = 4mm 鐕堟】搴曢儴澶栧緫 = 168mm
鐒婄斧鎵€鍦ㄩ潰鍗崇噲妗跨牬澹為潰銆傜噲妗跨牬澹為潰鎶垫姉鐭￤ 鐨勮▓(j矛)绠楅粸(di菐n)P鍒扮噲妗垮彈鍒扮殑闆绘睜鏉夸綔鐢ㄨ嵎杓塅浣滅敤绶氱殑璺濋洟鐐�
PQ = [5000+锛�168+6锛�/tan16°]× Sin16° = 1545mm=1.545m銆傛墍浠�锛岄ⅷ(f膿ng)鑽疯級鍦ㄧ噲妗跨牬澹為潰涓婄殑浣滅敤鐭㎝ = F×1.545銆�
鏍规摎(j霉)27m/s鐨勮ō(sh猫)瑷�(j矛)鍏佽ū棰�(f膿ng)閫�锛�2×30W鐨勯洐鐕堥牠澶櫧鑳借矾鐕堥浕姹犳澘鐨勫熀鏈嵎杓夌偤730N?锛熺搐]1.3鐨勫畨鍏ㄧ郴鏁�(sh霉)锛孎(xi脿n) = 1.3×730 = 949N銆�
鎵€浠�锛孧 = F×1.545 = 949×1.545 = 1466N.m銆�
鏍规摎(j霉)鏁�(sh霉)瀛�(xu茅)鎺ㄥ皫(d菐o)锛屽湏鐠�(hu谩n)褰㈢牬澹為潰鐨勬姷鎶楃煩W = π×锛�3r2δ+3rδ2+δ3锛�銆�
涓婂紡涓�锛宺鏄湏鐠�(hu谩n)鍏�(n猫i)寰�锛�δ鏄湏鐠�(hu谩n)瀵害銆�
鐮村闈㈡姷鎶楃煩W = π×锛�3r2δ+3rδ2+δ3锛�
=π×锛�3×842×4+3×84×42+43锛�= 88768mm3
=88.768×10锛�6 m3
棰�(f膿ng)鑽疯級鍦ㄧ牬澹為潰涓婁綔鐢ㄧ煩寮曡捣鐨勬噳(y墨ng)鍔� = M/W
= 1466/锛�88.768×10锛�6锛� =16.5×106pa =16.5 Mpa<<215Mpa
鍏朵腑锛�215 Mpa鏄�Q235閶�鐨勬姉褰庡挤(qi谩ng)搴�銆�
鎵€浠ワ紝瑷�(sh猫)瑷�(j矛)閬稿彇鐨勭剨绺搴︽豢瓒宠姹�锛屽彧瑕佺剨鎺ヨ唱(zh矛)閲忚兘淇濊瓑锛岀噲妗跨殑鎶楅ⅷ(f膿ng)鏄矑鏈夊晱椤岀殑銆�
