内燃泵工作过程的不动点迭代法仿真  

Simulation of iteration method with stationary point in working process of internal combustion pump

作　　者：杨道斋[1] 张洪信[1] 姜勇[1] 张铁柱[1] 孟祥踪[1] 

机构地区：[1]青岛大学机电工程学院,青岛266071

出　　处：《农业工程学报》2011年第11期90-94,共5页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家自然科学基金项目(50975146/50875134);山东省自然科学基金项目(ZR2010EM06)

摘　　要：为了使内燃泵(ICP)工作过程仿真更真实、全面、深入,提出了不动点迭代法,即以实际需要的工况转速为不动点,根据仿真转速和需要转速之差不断调整曲轴端扭矩,使ICP仿真收敛到需要转速并按实际工况运转。基于计算机辅助设计软件Solidworks和计算机辅助工程软件Adams建立了三缸ICP的虚拟样机,阐述了不动点迭代法的原理、流程和应用。标定工况下,ICP经过13个工作循环即可收敛,运转不均匀度为3.62%,满足使用要求;此时曲轴角速度计算精度比传统方法提高了2.13%。Iteration method with stationary point was put forward for making working process simulation of internal combustion pump more actual,comprehensive and embedded,in which,the required working condition rotational speed was the stationary point.Through iteration of the torque to crankshaft end according to the difference between required and simulating rotational speed,internal combustion pump（ICP） will converge at the required condition.Based on the computer aided design（CAD） software of Solid works and computer aided engineering（CAE） software of Adams,the virtual prototype of three-cylinder,ICP was constructed,then the principle,flow chart and application of iteration method with stationary point were described.Under calibrated working condition,the simulation of ICP can converge through 13 working cycles,and the running stability reaches 3.62% which can fullfill the application;the computational accuracy of angular speed of crankshaft is improved by 2.13% than traditional method.

关 键 词：泵 发动机 仿真 虚拟样机 

分 类 号：TK402[动力工程及工程热物理—动力机械及工程]