活塞式空气压缩机的动力学仿真与瞬态响应分析  

Dynamic Simulation and Transient Analysis of Piston air Compressor

作　　者：马宽 MA Kuan(College of Mechanical Engineering,Hefei University of Technology,Heifei 230009,China)

机构地区：[1]合肥工业大学机械工程学院,合肥230009

出　　处：《机械工程师》2024年第10期49-52,57,共5页Mechanical Engineer

摘　　要：为了得出活塞式空气压缩机曲轴结构整体受力变形的情况,利用ADAMS对活塞式空气压缩机的曲柄连杆机构进行动力学建模并进行动力学仿真。在将曲柄连杆机构视为刚体的情况下,对其进行了动力学仿真,得到活塞、连杆等部件的动力特性曲线及曲轴承受载荷的变化曲线,明确了曲柄连杆机构部件的动力学规律。然后利用ANSYS Workbench对曲轴进行了瞬态响应分析。结果表明,在一个工作周期内,曲轴产生的最大应力为99.19 MPa,应力集中主要出现在曲轴两端主轴颈处及第三主轴颈与曲柄臂的交接处,曲轴平衡重的变形较为严重,需要对其进行强度和结构上的优化。In order to obtain the overall force deformation of the crankshaft structure of a piston air compressor,this paper carries out the dynamic modeling and simulation of the crank connecting rod mechanism of the piston air compressor using ADAMS.The dynamic simulation of the crank connecting rod mechanism is carried out under the condition that the crank connecting rod mechanism is regarded as a rigid body.The dynamic characteristic curve of the piston,connecting rod and other components and the load change curve of the crankshaft are obtained.The dynamic law of the crank connecting rod mechanism components is clarified.Then the transient response analysis of the crankshaft is carried out using ANSYS Workbench.The results show that the maximum stress generated by the crankshaft is 99.19 MPa in a working cycle.The stress concentration mainly occurs at the main journal at both ends of the crankshaft and at the junction of the third main journal and the crank arm.The deformation of the crankshaft balance weight is more serious,and it is necessary to optimize its strength and structure.

关 键 词：活塞式压缩机 曲柄连杆机构 动力学仿真 瞬态分析 

分 类 号：TH457[机械工程—机械制造及自动化] TH113.22