CAJ | 학술논문

增压器压气机叶轮工作过程中气动压力载荷、热载荷和离心载荷会对叶轮的应力产生影响，针对该问题，利用流-热耦合方法建立了压气机叶轮流-热耦合计算模型；进行了压气机叶轮流-热耦合计算，得到了压气机叶轮工作过程中受到的气体压力载荷和热载荷；利用得到的气体压力载荷和热载荷进行了气体压力载荷、热载荷和离心载荷作用下的压气机叶轮应力计算，对比研究了气体压力载荷、热载荷和离心载荷对压气机叶轮应力状态的影响程度。
증압기압기궤협륜공작과정중기동압력재하、열재하화리심재하회대협륜적응력산생영향，침대해문제，이용류-열우합방법건립료압기궤협륜류-열우합계산모형；진행료압기궤협륜류-열우합계산，득도료압기궤협륜공작과정중수도적기체압력재하화열재하；이용득도적기체압력재하화열재하진행료기체압력재하、열재하화리심재하작용하적압기궤협륜응력계산，대비연구료기체압력재하、열재하화리심재하대압기궤협륜응력상태적영향정도。
In order to analyze the influences of pneumatic pressure load ,thermal load and centrifugal load on impeller stress during the course of turbocharger compressor ,the flow-heat coupling model of impeller was built with the flow-heat coupling method .With the model ,the coupling calculation of impeller flow-heat was conducted and the gas pressure load and thermal load were acquired .Then the stresses of compressor impeller under the conditions of gas pressure load ,thermal load and cen-trifugal load and their influences on stress state were calculated and compared .