摘要
曲柄连杆活塞机构是发动机的重要组成部分,在运动中会受到周期性的激振力作用,直接影响着系统工作的平顺性和零部件的寿命。针对某直列6缸柴油机使用虚拟样机仿真软件ADAMS搭建了曲轴缸体系统的刚柔耦合多体动力学仿真平台,通过对活塞的位移、速度和加速度的运动规律进行模拟,以及对气缸体所受侧向冲击力和曲轴载荷及主轴颈最小油膜厚度等特性进行仿真,得到了较为可靠的运动学和力学数据。结果表明,软件模拟仿真结果与柴油机实际情况基本一致,为曲轴缸体系统进一步优化设计和提高整体性能提供了理论依据。
Crankshaft and cylinder system is an important part of the engine,and can be affected by the periodic excitation force in motion,which directly affects the smoothness and life of the parts during work.This design uses virtual simulation software ADAMS to build a coupled multi-body dynamics simulation platform of crankshaft and cylinder system for an inline six-cylinder diesel engine.The reliable data of kinematics and mechanics are obtained by simulating the characteristics such as displacement,velocity,acceleration of piston,lateral impact force to the cylinder block and the minimum thickness of oil film.The analysis shows that the software simulation results are generally the same as the actual situation,which provides theory basis for further optimization design and overall performance improving of the crankshaft and cylinder system.
出处
《石家庄铁道大学学报（自然科学版）》
2017年第3期65-70,共6页
Journal of Shijiazhuang Tiedao University(Natural Science Edition)
基金
河北省研究生创新项目(yc2016003)
