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http://dx.doi.org/10.14775/ksmpe.2022.21.01.073

Vibration Fatigue Life for Slot Array RF Antenna Applied to Small Aviation Platform  

Kim, Ki-Seung (LIGNEX1)
Kim, Hyo-Tae (LIGNEX1)
Choi, Hye-Yoon (LIGNEX1)
Jung, Hwa-Young (LIGNEX1)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.21, no.1, 2022 , pp. 73-80 More about this Journal
Abstract
Sensors are applied to small aviation platforms for various purposes. Radio frequency (RF) antennas, which are representative sensors, are available in many forms but require the application of slot array RF antennas to ensure high performance and designation. Slot RF array antennas are applied to dip brazing techniques, but the yield and production time are determined by the proficiency of production personnel in a labor-intensive form. Unmanned aerial vehicles or drones, which are representative small aviation platforms, are continuously exposed to various random vibrations because propellers and multiple power sources are used in them. In this study, the fatigue life of slot array RF antennas applied with additive manufacturing was evaluated through the cumulative damage method (Miner's rule) in a vibration environment with a small aviation platform. For the evaluation, an S N curve obtained from a fatigue strength test was used.
Keywords
Additive Manufacturing; Slot Array RF Antenna; Random Vibration; Fatigue Strength; Miner's Rule;
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  • Reference
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