摘要
针对某新型双燃料发动机燃气进气阀,为了评估进气阀阀杆卡槽处的应力状态,首先对燃气进气阀阀杆落座过程进行动态撞击计算,得到卡槽连接处的作用力,然后对阀杆卡槽局部进行细致的建模计算,并分析了卡槽处不同凹陷深度对最小圆角应力以及卡紧区域接触压力的影响趋势,为阀杆卡槽优化设计提供了很好的参考。
For the fuel gas admission valve of a low-speed dual-fuel engine, in order to evaluate the stress state of the intake valve block slot. Firstly, the dynamic impact calculation of gas intake valve stem reset process is carried out to obtain the force at the chuck joint;then, the detailed modeling calculation is carried out for the chuck part of the valve block slot, and the influence trend of the different depth of the slot on the fillet stress and the contact pressure in the clamping area is analyzed, which provides a good reference for the optimal design of the block slot of the intake valve.
作者
王奎
吴安民
康纳新
WANG Kui;WU Anmin;KANG Naxin(China Shipbuilding Power Engineering Institute Co.,Ltd.,Shanghai 200129)
出处
《内燃机》
2019年第6期1-4,共4页
Internal Combustion Engines
基金
高技术船舶科研计划——船用低速机工程(一期)研制经费资助项目
关键词
低速双燃料
进气阀
撞击
支反力
卡槽应力
low-speed dual fuel engine
intake valve
impact
support reaction force
slot stress
