3D打印夹芯复合材料模拟冰型设计与分析

doi:10.7527/S1000-6893.2020.24536

Abstract

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

CLC Number:

V217⁺.4

PENG Jinfeng, WU Dongrun, CUI Weiyun, CAI Deng'an, ZHOU Guangming. Design and analysis of simulated ice with 3D printed sandwich composite material[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021, 42(9): 224536-224536.

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

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