一种箭体吊具的结构强度有限元分析

Intensity Finite Element Analysis of a Lifting-Device of Rocket Body

箭体吊具是一种常见的火箭地面设备,其结构主要由横梁组件、吊耳、连接耳、弓形卸扣、轴销、钢丝绳、叉架等组成。箭体吊具起吊时需要承受产品的重力、自身重量及起吊过程纵向过载等载荷。为了保证箭体起吊过程安全,需要对吊具结构进行强度校核分析。使用Hypermesh软件建立吊具主框架结构有限元模型,并进行强度计算分析,得出了吊具主框架结构的应力和变形云图,结果表明,吊具主框架结构刚度较好,可满足使用要求。

The lifting-device is a kind of familiar ground support equipments for Rocket body,whose structure ismade up of horizontal beam module,lifting ear,connecting ear,bow shackle,axis pill,tightwire,and so on.Thelifting-device bear gravity of Rocket body,oneself weight and vertical overload during rinsing to hang.In orderto guarantee safe for process of rising to hang,strength analysis is necessary for the lifting-device.Use theHypermesh software to set up a finite-element-analysis mold for the lifting-device,and strength analysis iscarried on,the result of stress and stiffness is calculated.The results express rigidity of the lifting-device isenough,can satisfy to the usage requirements.