基于Matlab/Simulink的高速压力机曲柄滑块机构的动力学研究  

Dynamic of Slider-Crank Mechanism in High-Speed Press Based on Matlab/Simulink

作　　者：蔡玉强 朱东升 吴楠 

机构地区：[1]华北理工大学机械工程学院,河北唐山063000

出　　处：《机械设计与制造》2018年第1期192-194,共3页Machinery Design & Manufacture

基　　金：河北省高层次人才资助项目(A201400214)

摘　　要：采用联立约束法对高速压力机中曲柄滑块机构进行了动力学建模,并用Matlab/Simulink对其进行了动力学仿真分析。快速地求解出了冲压力为800KN时,不同转速下,曲轴的输入转矩、曲轴支撑处和曲轴连杆处的约束反力随时间的变化规律。仿真结果表明:随着曲轴转速的增加,曲轴的惯性力增大,引起的附加转矩增大,而且增量远大于冲压力引起的附加转矩增量。曲轴转速增加引起的约束反力增量远大于冲压力引起的约束反力增量。所得结论为高速压力机主传动形式的选择、曲柄滑块机构的动平衡结构的设计及曲轴的设计提供了研究依据。A dynamics model is established for a slider-crank mechanism of high-speed press by using simultaneous constraint method.And the simulation analysis is implemented by using Matlab/SimulinL Under the condition of the speed of crankshaft is different and the pressing force is 800KN,quickly solved the change rule of the input torque of crankshafi,coustraint reaction of the crankshaft support and crankshaft connecting rod.The results of simulation show that with the increase of the crankshaft speed, the inertia force of the crankshaft is increased,additional torque is increased,and it＇s increment far more than the increment of additional torque caused by the pressing force.The increment of constraint reaction caused by the crankshaft speed increases far more than that caused by pressing force.The conclusions provide the research basis for the selection of main drive form of high-speed press and the design of the dynamic balance structure of the slider-crank mechanism and crankshaft.

关 键 词：联立约束法 曲柄滑块机构 MATLAB/SIMULINK 动力学仿真 

分 类 号：TH16[机械工程—机械制造及自动化]