增材制造阵风锁支座的装机应用研究  

Research on installation and application of an additive manufacturing gust lock bracket

作　　者：李磊[1] 张仲桢[1] 张浩[1] LI Lei;ZHANG Zhongzhen;ZHANG Hao(Test Verification Center,Shanghai Aircraft Design and Research Institute,Shanghai 201210,China)

机构地区：[1]上海飞机设计研究院试验验证中心,上海201210

出　　处：《航空工程进展》2023年第6期160-166,共7页Advances in Aeronautical Science and Engineering

摘　　要：根据3D打印技术的装机推进要求,在完成材料及工艺的验证后,即开始进行试片级增材制造材料许用值试验以及增材制造零件级试验。增材制造的零件由于其工艺特点,通常X-Y方向与Z方向力学性能有差异,与传统金属零件设计时各向同性的特点有差异,因此有必要在接近真实飞行状态下测试其力学性能。以增材制造阵风锁支座为例,计算飞机运营过程中最大载荷状态,选取最典型的载荷方向进行工装试验方案设计;在试验开始前,进行工程计算和软件仿真,预测失效模式和失效载荷。结果表明:软件仿真和工程计算的结果准确有效,增材制造钛合金阵风锁支座的力学性能稳定,能够承受极端工况的考验,满足装机要求。According to the requirement of the installation of 3D printing technology,after the completion of the verification of materials and processes,the permissible value test of specimen level additive manufacturing materials and the additive manufacturing part-level test are begun.Due to the process characteristics of additively manufactured parts,there is usually a difference in the mechanical properties of X-Y direction and Z direction,and there is a difference in the isotropic characteristics of the same sex in the design of traditional metal parts,so it is necessary to test its mechanical properties in simulating the real flight state.Taking the additive manufacturing gust lock bracket as an example,the maximum load state in the operation process of the aircraft is calculated,and the most typical load direction for tooling test scheme design is selected.Before the test starts,the engineering calculation and software simulation are carried out to predict the failure mode and failure load.The results show that the results of software simulation and engineering calculation are accurate and effective,and the mechanical properties of the additive manufacturing titanium alloy gust lock bracket are stable,which can withstand the test of extreme working conditions,and meet the installation requirements.

关 键 词：增材制造 阵风锁支座 突风载荷 拉剪复合载荷 间隙 

分 类 号：V262[航空宇航科学与技术—航空宇航制造工程]