中国特种设备安全
中國特種設備安全
중국특충설비안전
CHINA SPECIAL EQUIPMENT SAFETY
2015年
5期
13-17
,共5页
李国栋%张憬%马文江%刘学%乔松
李國棟%張憬%馬文江%劉學%喬鬆
리국동%장경%마문강%류학%교송
空冷换热器%管与管板胀接%胀接残余应力%拉%压脱失效载荷
空冷換熱器%管與管闆脹接%脹接殘餘應力%拉%壓脫失效載荷
공랭환열기%관여관판창접%창접잔여응력%랍%압탈실효재하
Air-cooling heat exchanger%Expansion of aluminum tube and tubesheet%Residual stress in expanded joints%Failure loads to pull off and to press off
针对一类空冷换热器铝管与铝管板胀接工艺过程，进行了有限元数值模拟分析，计算了胀接后胀接界面附近的变形和残余应力。设计并实施了胀接铝管-管板试件的拉脱和压脱实验，得到了相应的失效载荷。本文的数值分析和实验测试的结果可为空冷换热器管-管板接头的设计提供参考。
針對一類空冷換熱器鋁管與鋁管闆脹接工藝過程，進行瞭有限元數值模擬分析，計算瞭脹接後脹接界麵附近的變形和殘餘應力。設計併實施瞭脹接鋁管-管闆試件的拉脫和壓脫實驗，得到瞭相應的失效載荷。本文的數值分析和實驗測試的結果可為空冷換熱器管-管闆接頭的設計提供參攷。
침대일류공랭환열기려관여려관판창접공예과정，진행료유한원수치모의분석，계산료창접후창접계면부근적변형화잔여응력。설계병실시료창접려관-관판시건적랍탈화압탈실험，득도료상응적실효재하。본문적수치분석화실험측시적결과가위공랭환열기관-관판접두적설계제공삼고。
For a class of expanding joint process of aluminum tube-tube sheet in air-cooling heat exchanger, the deformation and residual stress near the expanded interface of the aluminum tube-tube sheet is computed using ifnite element numerical simulation, The tension and compression failure experiments of tube-tube sheet specimens expanded were designed and implemented, and the corresponding failure loads were obtained. The numerical analysis and the experimental results in this paper could provide a reference to design aluminum tube-tube sheet expanded joint in air-cooling heat exchanger.
