Matching Design of Mechanical-thermal-electromagnetic of Honeycomb Sandwich Absorptive/Transmissive Structure

doi:10.3901/JME.260130

Abstract

Abstract: The honeycomb sandwich absorptive/transmissive radome structures of high-speed aircraft are subjected to severe mechanical and thermal loads during service. However, current research lacks a matching design study of the mechanical, thermal and electromagnetic performance of absorptive/transmissive structures under high-temperature load-bearing conditions. To ensure stable and excellent mechanical-thermal-electromagnetic performance in high-temperature load-bearing environments, a matching design method for the mechanical-thermal-electromagnetic properties of honeycomb sandwich absorptive/transmissive structures is proposed. Firstly, the influence of mechanical and thermal loads on the mechanical-thermal-electromagnetic performance of a honeycomb sandwich absorptive/transmissive structure is analyzed. Then, a mechanical-thermal-electromagnetic coupling analysis model of a honeycomb sandwich absorptive/transmissive structure is established and an optimization design model for mechanical- thermal-electromagnetic design is constructed. Next, a honeycomb sandwich absorptive/transmissive structure with low-frequency absorption and high-frequency transmission properties is designed. The accuracy of the mechanical-thermal-electromagnetic coupling analysis model is then verified through simulation and experiment. Finally, the geometric parameters of the structure are determined based on the proposed matching design method. The results demonstrate that the designed honeycomb sandwich absorptive/ transmissive structure exhibits stable, broadband, and wide-angle absorptive/transmissive performance. In a high-temperature environment of 1 000 ℃, within an incident range of 0°～40°, the absorption bandwidth is 4.3 GHz and the transmission bandwidth exceeds 1.3 GHz. The proposed method for mechanical-thermal-electromagnetic matching design improves the level of design of the honeycomb sandwich absorptive/transmissive structure.

Key words: mechanical-thermal-electromagnetic coupling analysis, honeycomb sandwich absorptive/transmissive structure, high temperature resistance, mechanical-thermal-electromagnetic matching design

CLC Number:

V414
O32

DING Xuegang, YANG Lixin, LI Yanbin, FEI Qingguo. Matching Design of Mechanical-thermal-electromagnetic of Honeycomb Sandwich Absorptive/Transmissive Structure[J]. Journal of Mechanical Engineering, 2026, 62(4): 342-354.

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