| 钟广顺,肖平,章锐,曹洁.发动机扭转减振器建模仿真研究[J].井冈山大学自然版,2019,40(6):52-58 |
| 发动机扭转减振器建模仿真研究 |
| RESEARCH ON MODELING AND SIMULATION OF ENGINE TORSIONAL ABSORBER DAMPER |
| 投稿时间：2019-03-13 修订日期：2019-05-20 |
| DOI：10.3969/j.issn.1674-8085.2019.06.010 |
| 中文关键词: 发动机 扭转减振器 建模 仿真 MATLAB/SIMULINK |
| 英文关键词: engine torsional absorber damper modeling simulation MATLAB/SIMULINK |
| 基金项目:安徽省自然基金面上项目（1708085ME127）；安徽省省级示范实验实训中心——汽车工程虚拟仿真实验教学中心基金项目（2017sxzx24） |
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| 中文摘要: |
| 为了减小发动机的振动伤害，对发动机的扭转减振器进行了研究。首先，对其工作原理进行了研究，在此基础上建立数学模型；基于MATLAB/SIMULINK软件，建立发动机扭转减振器仿真模型，在不同的工况下进行了仿真实验。实验结果表明，扭转减振器的工作性能主要与其振幅放大系数的值有着直接关系。扭转减振器的阻尼系数、刚度以及转动惯量等都对振幅放大系数有一定的影响；并且从实验还可以看出发动机扭转角度的平衡点起初随阻尼系数的增加而增大，到了临界点后将随着阻尼系数的增加而减小，因此，在设计发动机扭转减振系统时应综合各参数建模，将阻尼系数的值设置在平衡点附近，以取得最佳的阻尼效果。 |
| 英文摘要: |
| In order to reduce the vibration damage of the engine, the torsional vibration damper of the engine is studied. Firstly, the working principle is studied, and the mathematical model is established. Based on MATLAB/SIMULINK software, the simulation model of the engine torsional vibration damper is established, and the simulation experiment is carried out under different working conditions. The experimental results show that the performance of the torsional vibration damper is mainly related to the value of the amplitude amplification factor. The damping coefficient, stiffness and moment of inertia of the torsional vibration damper have certain influence on the amplitude amplification factor. It can also be seen from the experiment that the equilibrium point of the engine torsion angle initially increases with the increase of the damping coefficient, and reaches the critical point. It will decrease with the increase of the damping coefficient. Therefore, when designing the engine torsional vibration damping system, the parameters should be integrated and the damping coefficient should be set near the equilibrium point to obtain the best damping effect. |
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