燃爆类应急离机门作动器冲击强度分析

Impact Strength Analysis of Fire and Explosion Emergency Door Actuator

目前,有关应急离机的研究多是对离机轨迹或离机系统构成的探讨,对于应急离机门作动器的强度分析鲜有涉及。基于功能转换思想,利用瞬态动力学分析方法对应急离机门作动器冲击强度进行分析。结果表明:燃爆类应急离机门作动器冲击强度与燃爆气压、燃爆室体积及活塞杆组件的质量均有很大关系;作动器活塞杆与外筒冲击部位附近的倒圆角处为作动器抗冲击的薄弱环节和危险区域。

At present,the research on emergency departure is mostly about the departure track or the departure system.The strength analysis of the emergency door actuator is rarely involved.Based on the idea of function conversion,the transient dynamic analysis method is used to analyze the impact strength of an emergency door actuator.The calculation results show that the impact strength of the emergency exit door actuator has a great relationship with the explosion pressure,the volume of the combustion chamber and the quality of the piston rod assembly.At the same time,the weak link and dangerous area of the actuator are also obtained.Fillet section between actuator piston rod and impact parts of outer cylinder is the weak link and dangerous area.