民用飞机舱门连杆支架优化研究

民用飞机舱门闩机构是防止舱门意外开启的机构部件。当机构发生卡阻且强制操作时,将产生较大的内力。在设备舱门闩机构中除连杆支架外都是杆形件且载荷较小,连杆支架结构形式复杂且载荷较大。在分析机构卡阻载荷的基础上使用有限元分析软件HyperMesh和Opti-Struct对三种结构形式的连杆支架进行了数值模拟。通过对比分析,得到了满足样机设备舱门功能要求和试验目的的连杆支架形式,为后续真实产品的设计提供参考。

The Optimization Design of Door Connecting Rod Bracket Structure of Civil Aircraft

The cabin latch mechanism of civil aircraft is to prevent the door accidentally open parts. When a jam occurs forced operation, it will produce a greater internal force. The equipment door latch mechanism is all stem shape and load is small except the connecting rod bracket. Connecting rod bracket structure is complex and load is bigger. Based on analyzingresistance load ,using the finite element analysis software HyperMesh and Opti-Struct ,three kinds of structure forms of connecting rod bracket are simulated. With comparison and analysis, connecting rod bracket structure satisfied equipment doors functional requirements and prototype test purpose, which provides reference for the follow-up of the real product design.