航空学报 > 2021, Vol. 42 Issue (9): 224536-224536   doi: 10.7527/S1000-6893.2020.24536

3D打印夹芯复合材料模拟冰型设计与分析

彭锦峰, 吴东润, 崔为运, 蔡登安, 周光明   

  1. 南京航空航天大学 机械结构力学及控制国家重点实验室, 南京 210016
  • 收稿日期:2020-07-16 修回日期:2020-08-19 发布日期:2020-09-24
  • 通讯作者: 蔡登安 E-mail:cda@nuaa.edu.cn
  • 基金资助:
    国家自然科学基金(52005256);江苏省基础研究计划(自然科学基金)(BK20190394);江苏省博士后科研资助计划(2020Z437);中央高校基本科研业务费专项资金(NS2019001);上海航天科技创新基金(SAST2018-071);江苏高校优势学科建设工程(PAPD)

Design and analysis of simulated ice with 3D printed sandwich composite material

PENG Jinfeng, WU Dongrun, CUI Weiyun, CAI Deng'an, ZHOU Guangming   

  1. State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2020-07-16 Revised:2020-08-19 Published:2020-09-24
  • Supported by:
    National Natural Science Foundation of China (52005256); Natural Science Foundation of Jiangsu Province (BK20190394); Jiangsu Post-doctoral Research Funding Program (2020Z437); Fundamental Research Funds for the Central Universities (NS2019001); Shanghai Aerospace Science and Technology Innovation Fund (SAST2018-071); Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)

摘要: 适航取证是所有民用飞机走向市场投入使用的必经环节。根据适航条例,测试机完成模拟冰型试飞是必须进行的Ⅰ类风险试飞课目,以考察飞机综合的气动以及操作稳定性能。由于真实结冰飞行测试难度大风险高,因此开展模拟冰型的研究设计格外重要。以某民用飞机机翼自然结冰过程为研究对象,首先,确定研究飞机的临界冰型,设计模拟冰型结构以及采用3D打印夹芯材料制作复合材料模拟冰型;其次,通过CFD仿真得到带冰模型在极端工况下所承受的气动载荷,利用有限元分析得到模拟冰型的破坏强度以及破坏形式;最后,通过静力试验验证仿真结果的有效性,继而验证3D打印夹芯复合材料模拟冰型设计方案的可行性。

关键词: 3D打印, 夹芯复合材料, 模拟冰型, 有限元分析, 强度测试

Abstract: Airworthiness certification is an indispensable link in the launching process of civil aircraft. According to the airworthiness regulations, the test aircraft are required to complete the flight test with simulated ice, which is a test flight course with class I risk, to examine comprehensive aerodynamics and operational stability of the aircraft. Because of the severe difficulty and high risk of real icing flight tests, it is extremely important to carry out research and design of simulated ice. Taking the natural icing process of a civil aircraft wing as the research object, we first determine the critical ice type of the research aircraft, design the simulated ice structure, and utilize the 3D printed sandwich material to fabricate the simulated composite ice. The aerodynamic load of the ice model under extreme working conditions is then obtained via CFD simulation, and the finite element analysis employed to acquire the damage strength and failure modes of the simulated ice. The effectiveness of the simulation results and, subsequently, the feasibility of the structural design of simulated ice with 3D printed sandwich composite are verified by the quasi-static test.

Key words: 3D printing, sandwich composite, simulated ice, finite element analysis, strength test

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