CAJ | 학술논문

利用CFD软件Star-ccm＋对某型号防爆柴油机射流干式排气管的流动过程进行数值模拟，得到了射流干式排气管内部流场的压力、速度，以及温度分布云图。分析了在一定工况下，射流干式排气管的结构参数，如喉口尺寸、射流入射角度、管长等因素对其性能影响；为使排放尾气温度达到煤矿安全使用标准，通过控制各参数对引射系数的影响，达到降低尾气温度的目的；同时得出了该型号防爆柴油机射流干式排气管的优化参数，为射流干式排气管的结构改进和优化提供了依据。
이용CFD연건Star-ccm＋대모형호방폭시유궤사류간식배기관적류동과정진행수치모의，득도료사류간식배기관내부류장적압력、속도，이급온도분포운도。분석료재일정공황하，사류간식배기관적결구삼수，여후구척촌、사류입사각도、관장등인소대기성능영향；위사배방미기온도체도매광안전사용표준，통과공제각삼수대인사계수적영향，체도강저미기온도적목적；동시득출료해형호방폭시유궤사류간식배기관적우화삼수，위사류간식배기관적결구개진화우화제공료의거。
A new basic principle of traction suspension was put forward to solve the vibration problems of precision equipment in the semi-trailer transport;and its prototype was designed .Then its structural design was given .Finally, a parametrical vi-bration model was proposed .Simulation analysis on ride comfort shows that the trailer ride comfort has been greatly improved with the installation of the new traction suspension device .