柴油机配气机构动力学建模与分析

发动机配气机构有限元分析作为基础试验的重要支撑,在现代机械设计中非常必要.以直列四缸柴油机配气机构性能优化设计为研究目标,系统计算与确定柴油机热力学与动力学关键参数.首先采用多体动力学方法建立配气机构动力学模型,计算静应力有限元分析结果,得出零部件动力学模型中的模块参数.然后利用Sharp 3D软件对配气机构进行动力学...

Dynamic modeling and analysis of diesel engine valve mechanism

Finite element analysis of engine valve mechanism is very necessary in modern mechanical design as an important support for basic experiment. Aiming at the optimal design of the performance for in-line four-cylinder diesel valve mechanism, the key thermodynamic and dynamic parameters of diesel engine were calculated and determined systematically. Firstly, the dynamic model of valve mechanism was established by using multi-body dynamic method, the finite element analysis results of static stress were calculated, and the module parameters in the dynamics model of parts were obtained. Then, Sharp 3D software was used to analyze the dynamics of the valve mechanism, and the camshaft strength of the valve mechanism was analyzed and optimized based on the analysis parameters. Finally, the main parts of the mechanism were analyzed through the finite element analysis function. The results show that the analysis results of the dynamics model of the valve mechanism are reliable, which are beneficial to the improvement and optimization of the dynamics design and performance parameters for the diesel engine valve mechanism.