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閶侀憚杌嬫(j墨)涓粙杓ヨ桓鎵跨殑宸ヤ綔鐗归粸(di菐n)

鏇存柊鏅�(sh铆)闁擄細2019-08-27 00:46:26 渚�(l谩i)婧�:绁炲伐姗�(j墨)姊� 榛�(di菐n)鎿婃暩(sh霉)锛�

杌嬭讥杌告壙鐢ㄤ締(l谩i)鏀拹杞�(zhu菐n)鍕�(d貌ng)鐨勮粙杓ワ紝淇濇寔杌嬭讥鍦ㄦ(j墨)鏋朵腑鐨勬纰轰綅缃�锛屽苟鎵垮彈鐢辫粙杓ュ偝閬炰締(l谩i)鐨勮粙鍒跺姏锛屽叾涓昏鐗归粸(di菐n)濡備笅锛�

锛�1锛� 鎵垮彈寰堥珮鐨勫柈浣嶅鍔� 鐢变簬杌嬭讥杌告壙鐨勫鍦嶅昂瀵稿彈鍒版(j墨)鏋剁獥鍙ｅ拰杌嬭讥杓ュ緫灏哄鐨勯檺鍒�锛岃€岃純鐭殑杌嬭讥杓ラ牳鍙堝繀闋堥噰鐢ㄥ緢澶х殑瑷辩敤褰庢洸鎳�(y墨ng)鍔涳紝鎵€浠ヨ粙杌告壙鐨勫柈浣嶅鍔涘緢楂�锛岀偤鏅€氳桓鎵垮厑瑷卞柈浣嶅鍔涚殑2~5鍊嶃€�

渚嬪锛屽皪(du矛)浜庨枊(k膩i)寮忔粦鍕�(d貌ng)杌告壙锛屼綔鐢ㄤ簬鍏惰桓鐡︽姇褰遍潰涓婄殑鍠綅澹撳姏锛屽彲浠ユ牴鎿�(j霉)杓ラ牳涓婄殑瑷辩敤褰庢洸鎳�(y墨ng)鍔涚敱浠ヤ笅闂�(gu膩n)绯诲紡寰梔3

p=σ×0.1d3bl2

寮忎腑l(w猫i)鍜宐——杌哥摝鐨勯暦(zh菐ng)搴﹀拰瀵害锛�

d——杌嬭讥杓ラ牳鐩村緫锛�σ——杌嬭讥杓ラ牳涓婄殑瑷辩敤褰庢洸鎳�(y墨ng)鍔�銆�

瑷�(sh猫)b=0.8d锛宭=锛�0.8~1.2锛塪锛屽墖灏�(du矛)浜庨嫾杌嬭讥锛屽湪瑷辩敤鍔�σ=120MPa鏅�(sh铆)锛岃桓鎵夸笂鐨勫柈浣嶅鍔涚偤

P=21~47MPa

鐣�(d膩ng)杌嬭讥杓ラ牳鍦撳懆閫熷害v=2~5m/s鏅�(sh铆)锛岃垏鍏剁浉鎳�(y墨ng)鐨刾v鍊肩偤

Pv=42~235MPa·m/s

閫氬父锛屽湪鏅€氳桓鎵夸笂锛宲≪9MPa鍜宲v≪10MPa·m/s銆傚洜姝�锛岃粙杓ヨ桓鎵跨殑鍠綅澹撳姏鏄櫘閫氳桓鎵跨殑2~5鍊�锛岃€宲v鍊兼槸鏅€氳桓鎵跨殑4~24鍊�銆�

锛�2锛夎粙杓ヨ桓鎵胯閫�(j矛n)琛屼汉宸ュ喎鍗� 杌嬭讥杌告壙鐢变簬鏈夊緢楂樼殑pv鍊�锛岃€岀敘(ch菐n)鐢熷緢澶х殑鐔遍噺锛屽洜姝ゅ湪宸ヤ綔涓閫�(j矛n)琛屼汉宸ュ喎鍗�銆傛牴鎿�(j霉)杌告壙鐨勭祼(ji茅)妲�(g貌u)锛屾垨鍦ㄨ粙杓ヨ讥闋镐笂婢嗘按锛屾垨鐢ㄥ挤(qi谩ng)鍔涚殑寰挵(hu谩n)娌归仈(d谩)鍒颁汉宸ュ喎鍗汇€�

锛�3锛夊伐浣滄浠舵儭鍔� 闄や簡楂樿矤(f霉)鑽峰锛岃粙杓ヨ桓鎵挎棦瑕佹壙鍙楅珮婧紝鍚屾檪(sh铆)鍙堥爤鐢ㄦ按鍐峰嵒锛屽洜姝ゆ韩搴﹀緢涓嶇┅(w臎n)瀹�銆傝€屼笖姹℃按锛屾哀鍖栭惖鐨拰濉靛湡绛夊鏄撹惤鍏�锛屾饯(r霉n)婊戜篃杓冨洶闆�銆傚湪鏌愪簺杌嬫(j墨)涓婏紝濡傜枈杌嬭杽鏉胯粙姗�(j墨)锛岃粙杓ヨ桓鎵跨殑宸ヤ綔婧害楂橀仈(d谩)300°C鐢氳嚦鏇撮珮銆�

锛�4锛夋牴鎿�(j霉)涓婅堪杌嬭讥杌告壙鐨勫伐浣滅壒榛�(di菐n)锛岃粙杓ヨ桓鎵挎噳(y墨ng)鍏锋湁瓒冲鐨勫挤(qi谩ng)搴﹀拰鍓涘害锛屾懇鎿︾郴鏁�(sh霉)灏忥紝鑰愭矕鎿�锛岃兘鍚告敹纭洿椤嗙矑绛夛紱鍦ㄧ祼(ji茅)妲�(g貌u)涓�锛屽叾寰戝悜灏哄鎳�(y墨ng)鐩″彲鑳藉皬锛屼互渚块噰鐢ㄨ純澶х殑杌嬭讥杓ラ牳鐩村緫锛涜鏈夎壇濂界殑娼�(r霉n)婊戝拰鍐峰嵒姊濅欢锛涜渚夸簬鎻涜讥銆�

姝ｇ⒑鍦伴伕鎿囪桓鎵垮瀷寮忓強杌哥摝鏉愭枡锛屽皪(du矛)淇濊瓑杌告壙鐨勬甯稿伐浣�锛屾彁楂樼敘(ch菐n)鍝佸昂瀵哥簿纰哄害锛屽欢闀�(zh菐ng)杌告壙浣跨敤澹藉懡锛屾彁楂樿粙姗�(j墨)宸ヤ綔鏁堢巼锛屾笡灏戣桓鎵胯兘閲忔秷鑰楃瓑锛屽潎鍏锋湁閲嶈鎰忕京銆�

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