摘要
民用飞机登机门为了满足应急逃生需求,舱门开关需平稳,不能出现明显晃动。登机门铰链臂作为舱门开关过程中的重要连接结构,刚度要求很高,同时作为多个机构的连接界面,载荷工况种类繁多。针对登机门铰链臂结构的设计,提出了较为全面的设计优化流程方法,包含设计空间的定义、载荷及约束、几何重构步骤和强度校核。结合工程经验、拓扑优化以及厚度尺寸优化,能在少量的设计迭代次数下确定铰链臂的外形及尺寸,减少了铰链臂设计周期,实现铰链臂的轻量化设计,同时结构满足强度、刚度、功能性的要求。对于设计中的关键参数的定义和设置,结合工程经验给出建议,形成的通用方法可以推广至多功能,高刚度要求结构,为类似结构的设计提供了参考模板。
In order to meet the requirements of emergency escape, the door opening and closing process of civil aircraft needs to be stable and should not be significantly shaken. The boarding door hinge arm is an important connection structure in the process of door opening and closing, which requires high rigidity. As the connection interface of multiple mechanisms, there are many types of load conditions applied on it. For the design of the boarding door hinge arm structure, a more comprehensive optimization design process is proposed, including design space definition, loads and boundary conditions, geometric reconstruction and stress analysis. Combining engineering experience, topology optimization, and thickness size optimization, the shape and size of the hinge arm can be determined in a small number of design iterations, which reduces the design period of the hinge arm and achieves lightweight design of hinge arm, while meeting the requirements for strength, stiffness, and functionality. For the key parameter settings in the design, suggestions are given to provide a reference for the design of similar structures.
作者
张文斌
马大卫
ZHANG Wenbin;MA Dawai(Shanghai Aircrat Design and Research Institute,Shanghai 201210,China)
出处
《民用飞机设计与研究》
2020年第1期6-11,共6页
Civil Aircraft Design & Research
关键词
铰链臂
优化设计
拓扑优化
尺寸优化
hinge arm
optimization design
topology optimization
size optimization
