简介：配气机构作为柴油机的两大机构之一，其组件的工作条件比较恶劣。本文以TBD234V6型柴油机作为动态强度和寿命计算方法的验证对象，基于多体动力学软件ADAMS/Views和疲劳寿命分析软件MSC.Fatigue，对配气机构中推杆、摇臂、气门等建立刚柔耦合多体动力学模型，进行动态强度和寿命计算，并作出相应判断。

简介：Inordertostudytheeffectsofwetcompressiononatransoniccompressor,afull3-Dsteadynumericalsimulationwascarriedoutundervaryingconditions.Differentinjectedwaterflowratesanddropletdiameterswereconsidered.Theeffectofwetcompressionontheshock,separatedflow,pressureratio,andefficiencywasinvestigated.Additionally,theeffectofwetcompressiononthetipclearancewhenthecompressorrunsinthenear-stallandstallsituationswasemphasized.Analysisoftheresultsshowsthattherangeofstableoperationisextended,andthatthepressureratioandinletairflowratearealsoincreasedatthenear-stallpoint.Inaddition,itseemsthatthereisanoptimumsizeofthedropletdiameter.