杌嬮嫾姗�(j墨)杌嬪埗澹撳姏鍜岃粙鍒跺姏鐭╃殑瑷�(j矛)绠�

鍦ㄩ(y脿n)绠楄粙姗�(j墨)鐨勫挤(qi谩ng)搴�銆佹寲鎺樿粙姗�(j墨)鐨勬經鍔涘拰瑷�(sh猫)瑷�(j矛)鏂扮殑杌嬫(j墨)鏅�(sh铆)锛岃粙姗�(j墨)鐨勫昂瀵�銆佸偝鍕�(d貌ng)鐨勫姛鐜囧拰鍏佽ū鐨勫涓嬭(gu墨)绋嬪潎鍙栨焙浜庤粙鍒跺鍔涚殑澶у皬鑸囨柟鍚戙€傚湪瑷�(sh猫)瑷�(j矛)鏂扮殑杌嬫(j墨)鏅�(sh铆)锛岀偤浜嗛浂浠剁殑寮�(qi谩ng)搴﹀拰閬告搰闆诲嫊(d貌ng)姗�(j墨)鐨勫姛鐜�锛屽氨蹇呴爤鐭ラ亾杌嬫(j墨)鍦ㄤ竴瀹氳粙鍒舵浠朵笅鐨勮粙鍒跺鍔�銆佽粙鍒跺姏鐭╁拰杌嬪埗鍔熺巼銆�1杌嬪埗骞冲潎鍠綅澹撳姏鐨勭⒑瀹� 鍦ㄨ粙鍒剁殑閬庣▼涓�锛岃粙浠跺湪杌嬭讥瑕嬫壙鍙楄粙鍒跺鍔涚殑浣滅敤鑰岀櫦(f膩)鐢熷鎬ц畩鎬�锛岀敱浜庤粙浠跺鎬ц畩褰㈡檪(sh铆)鐨勯珨绌嶄笉璁�銆傚洜姝よ畩褰㈠崁(q奴)鐨勮粙浠跺湪鍨備箣鏂瑰悜涓婄敘(ch菐n)鐢熷鎵�锛屽湪杌嬩欢鏂瑰悜涓婄敘(ch菐n)鐢熷欢浼�锛屽ぇ閲忕殑瀵�(sh铆)椹�(y脿n)璩囨枡璀夊(sh铆)锛岄枊鍧�锛屽瀷閶�锛岀窔鏉愯粙姗�(j墨)鐨勮粙鍒跺鍔涳紝閲囩敤S銆傛剾鍏嬮殕寰峰叕寮忚▓(j矛)绠楄垏瀵�(sh铆)娓�(c猫)绲�(ji茅)鏋滄瘮杓冩帴杩�銆� 鎰涘厠闅嗗痉鍏紡鐨勯仼鐢ㄨ寖鍦嶏細杌嬪埗婧害楂樹簬800搴�锛岃粙鍒舵潗璩�(zh矛)鐐虹偔閶�锛岃粙鍒堕€熷害涓嶅ぇ浜�20绫�/绉�銆� 鍦ㄦ剾鍏嬮殕寰风殑鍏紡涓�锛岃粙鍒剁殑鍠綅涓嶅儏鏄粙浠舵(j墨)姊版€ц兘鐨勫嚱鏁�(sh霉)锛岃€屼笖鏄畩褰㈤€熷害銆佹懇鎿︾郴鏁�(sh霉)銆佹帴瑙稿姬闀峰拰杌嬩欢骞冲潎楂樺害涔嬫瘮鐨勫嚱鏁�(sh霉)锛岃粙鍒跺钩鍧囧柈浣嶅鍔涚敱涓夐儴鍒嗙祫鎴愶細   P=K+uP+vP (kg/2mm) 锛�1锛� 锛€�:锛偤杌嬩欢鍦ㄨ粙鍒舵韩搴搴︿笅鐨勫柈鍚戦潨澹撶府鏅�(sh铆)鐨勫柈浣嶈畩褰㈤樆鍔涳紝瑷�(j矛)绠楀叕寮忕偤:                  K=(14-0.01t)W (kg/2mm) 寮忎腑     t——杌嬪埗婧害锛� W——杌嬩欢鐨勫寲瀛�(xu茅)鎴愬垎锛岃▓(j矛)绠楀叕寮忕偤锛� W=1.4+C+0.3Cr+Mn 鍏朵腑      C鐐虹櫨鍒嗗惈閲�锛�              Mn鐐虹櫨鍒嗗惈閲�锛�              Cr鐐虹櫨鍒嗗惈閲�銆�       杌嬪埗鐨勬潗鏂欒ō(sh猫)鐐篈3閶�锛屽墖C鍙�0.3 W=1.4+0.3=1.7甯跺叆K寮忎腑鐐� K=锛�14-0.01×1000锛�×1.7=6.8锛� kg/2mm) 锛�2锛� uP鍊硷細uP鍊肩偤璁婂舰閫熷害寮曡捣鐨勮畩褰㈤樆鍔�锛屽叾瑷�(j矛)绠楀叕寮忕偤锛� P=ηU(kg/2mm) 寮忎腑  η——杌嬩欢鍦ㄨ粙鍒舵韩搴︾偤t搴︽檪(sh铆)鐨勭矘搴︾郴鏁�(sh霉)锛屽叾瑷�(j矛)绠楀叕寮忕偤锛�  η=0.01锛�14-0.01t锛�¢(kg ·s/2mm) ¢鐐鸿粙閶兼(j墨)鐨勮粙鍒堕€熷害鐨勪慨姝ｇ郴鏁�(sh霉)锛� U——璁婂舰閫熷害锛岃▓(j矛)绠楀叕寮忕偤锛� U=1.61.212uRhhhh∆−∆+锛�/s锛� 鍏朵腑      R鐐鸿粙杓ョ殑鍗婂緫锛�              V鐐鸿粙杓ョ殑鍦撳懆閫熷害锛堣粙鍒堕€熷害锛夛紙mm/s锛�锛�              h∆鐐洪亾娆″涓嬮噺锛岃▓(j矛)绠楀叕寮忕偤       h∆=h1-h2( 姣背) h1,h2鐐鸿粙鍒跺墠鍚庣殑杌嬩欢鐨勯珮搴�(姣背)锛� 鏌ヨ〃2—1鐨勮粙鍒剁殑淇绯绘暩(sh霉)鐐�1 鎵€浠�  η=0.01锛�14-0.01×1000锛�×1=0.04 锛坘g·s/2mm) 浠ヤ笂鍙栧€�锛屾湁璩翠簬杌嬭讥鐨勮綁(zhu菐n)閫�锛屽叾鍊肩偤40——49杞�(zhu菐n)/鍒�銆� 鍒濋伕V, 鐢辩従(xi脿n)鍫�(ch菐ng)浠∆鍚岄杌嬫(j墨)鍙栧緱锛孷=700锛坢m/s锛� h∆=25mm(鏈€澶х殑澹撲笅閲�) h1=60 mm(鍒濅娇鐨勯珮搴�) h2锛�35 mm (杌嬪埗鍚庣殑楂樺害) 甯跺叆       U锛�2×700×25/150/(6035)+=6锛坢m/s锛� 鎵€浠�      uP 锛�0.04×6=0.24锛坘g/2mm) 锛�3锛�        vP =锛圞+uP锛塎锛坘g/2mm锛� 寮忎腑    M——琛ㄧず澶栨懇鎿﹀皪(du矛)杌嬪埗骞冲潎鍠綅澹撳姏鐨勫奖闊跨郴鏁�(sh霉)锛屽叾瑷�(j矛)绠楀叕寮忕偤 P=ηU(kg/2mm) 寮忎腑  η——杌嬩欢鍦ㄨ粙鍒舵韩搴︾偤t搴︽檪(sh铆)鐨勭矘搴︾郴鏁�(sh霉)锛屽叾瑷�(j矛)绠楀叕寮忕偤锛�  η=0.01锛�14-0.01t锛�¢(kg ·s/2mm) ¢鐐鸿粙閶兼(j墨)鐨勮粙鍒堕€熷害鐨勪慨姝ｇ郴鏁�(sh霉)锛� U——璁婂舰閫熷害锛岃▓(j矛)绠楀叕寮忕偤锛� U=1.61.212uRhhhh∆−∆+锛�/s锛� 鍏朵腑      R鐐鸿粙杓ョ殑鍗婂緫锛�              V鐐鸿粙杓ョ殑鍦撳懆閫熷害锛堣粙鍒堕€熷害锛夛紙mm/s锛�锛�              h∆鐐洪亾娆″涓嬮噺锛岃▓(j矛)绠楀叕寮忕偤       h∆=h1-h2( 姣背) h1,h2鐐鸿粙鍒跺墠鍚庣殑杌嬩欢鐨勯珮搴�(姣背)锛� 鏌ヨ〃2—1鐨勮粙鍒剁殑淇绯绘暩(sh霉)鐐�1 鎵€浠�  η=0.01锛�14-0.01×1000锛�×1=0.04 锛坘g·s/2mm) 浠ヤ笂鍙栧€�锛屾湁璩翠簬杌嬭讥鐨勮綁(zhu菐n)閫�锛屽叾鍊肩偤40——49杞�(zhu菐n)/鍒�銆� 鍒濋伕V, 鐢辩従(xi脿n)鍫�(ch菐ng)浠∆鍚岄杌嬫(j墨)鍙栧緱锛孷=700锛坢m/s锛� h∆=25mm(鏈€澶х殑澹撲笅閲�) h1=60 mm(鍒濅娇鐨勯珮搴�) h2锛�35 mm (杌嬪埗鍚庣殑楂樺害) 甯跺叆       U锛�2×700×25/150/(6035)+=6锛坢m/s锛� 鎵€浠�      uP 锛�0.04×6=0.24锛坘g/2mm) 锛�3锛�        vP =锛圞+uP锛塎锛坘g/2mm锛� 寮忎腑    M——琛ㄧず澶栨懇鎿﹀皪(du矛)杌嬪埗骞冲潎鍠綅澹撳姏鐨勫奖闊跨郴鏁�(sh霉)锛屽叾瑷�(j矛)绠楀叕寮忕偤 2杌嬪埗绺藉鍔涚殑纰哄畾 杌嬪埗绺藉鍔涚殑瑷�(j矛)绠楀叕寮忓彲鐢ㄤ笅寮忚▓(j矛)绠�                  N=PF P——杌嬩欢鑸囪粙杓ユ帴瑙稿姬涓婄殑骞冲潎鍠綅澹撳姏 F——杌嬩欢鑸囪粙杓ラ枔鐨勬帴瑙搁潰绌嶅湪杌嬪埗绺藉鍔涘瀭鐩撮潰涓婄殑鐨勬姇褰憋紙绨�(ji菐n)绋辩偤鎺ヨЦ闈㈢⿳锛� 鍚勭ó涓嶅悓鐨勬儏娉佷笅瑷�(j矛)绠楁帴瑙搁潰绌嶇殑鏂规硶涓嶅悓锛屾湁浠ヤ笅骞剧ó鎯呮硜1杓ュ緫鐩稿悓鐨勬儏娉�2杌嬪埗鐣板瀷鏂烽潰杌嬩欢鏅�(sh铆)鐨勬儏娉�3鍐疯粙鏅�(sh铆)鐨勬儏娉�4涓紙鍘氾級鏉胯杌嬫檪(sh铆)鐨勬儏娉�銆� 鎴戦噰鐢ㄧ殑鏄讥寰戠浉鍚屾檪(sh铆)鐨勬儏娉侊紝瑷�(j矛)绠楀叕寮忕偤锛�                  F=122bbRh+∆(2mm) 寮忎腑      R——杌嬭讥鐨勫崐寰戯紙姣背锛�锛�                h∆——澹撲笅閲忥紙姣背锛夛紱                1b,2b杌嬪埗鍓�銆佸悗杌嬩欢鐨勫搴�銆� F=6052150252+×=3429锛�2mm锛� 鎵€浠�        N=P×F=8.03×3429=27537(kg) 2.3杌嬪埗鍔涚煩鐨勭⒑瀹� 鍌冲嫊(d貌ng)杌嬭讥鏅�(sh铆)锛岄浕鍕�(d貌ng)姗�(j墨)杌镐笂鐨勫姏鐭╃敱涓嬬ó鍥涚ó鍔涚煩绲勬垚锛� M= zamhdMMMMi+++   寮忎腑       zaM——杌嬪埗鍔涚煩锛� mM——闄勫姞鎽╂摝鍔涚煩锛�        hM——绌鸿綁(zhu菐n)鍔涚煩锛� dM——鍕�(d貌ng)鍔涚煩锛� i——杌嬭讥鑸囦富闆绘(j墨)闁撶殑鍌冲嫊(d貌ng)姣�銆� 鍏朵腑mM銆乭M銆乨M鑸噝aM姣旇純锛寊aM姣旇純澶�銆傛墍浠ュ彲浠ュ皣涓婂紡绨�(ji菐n)鍖�   M=KzaMi 寮忎腑K鐐哄畨鍏ㄧ郴鏁�(sh霉)锛屽彇    K=1.5锛� 鍒濋伕杌嬫(j墨)绺藉偝鍕�(d貌ng)姣�        i=10銆� 鎵€浠ヨ粙鍒跺姏鐭╃偤          M=1686.31.510×=252.9锛圢m锛� 绮楃畻鎵€闇€闆诲嫊(d貌ng)姗�(j墨)鐨勫姛鐜囷細  P=9550Mn×=252.99809550×=26锛圞W锛�