摘要
利用ANSYS软件二次开发功能中的APDL命令流对空心气门进行建模,并对其进行热-应力耦合分析,研究空心气门在高温高压状态下的应力和变形情况。结果表明:气门盘部、过渡圆弧和锁夹槽位置应力较大,而气门盘部和过渡圆弧位置的变形也容易导致气门疲劳失效。研究结果可为空心气门的疲劳寿命分析提供参考。
By using the APDL command of secondary development function of the ANSYS, the model of the hollow valve is built, thermal - structural coupling analysis is carried out to research the stress and deformation distribution of hollow valve in the conditions of high temperature and high pressure. The results show that the stress of the hollow valve plate, transition arc and lock clamp slot is larger, and the deformation of the valve plate and transition arc is also easy to cause the valve fatigue failure. The research can provide theoretical basis for fatigue life analysis of the hollow valve.
出处
《农业装备与车辆工程》
2016年第9期46-48,共3页
Agricultural Equipment & Vehicle Engineering
