Composites Research

The Korean Society for Composite Materials (한국복합재료학회)
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Research of Vibration Analysis and Resonance Avoidance Design of Composite Quadcopter

복합재 쿼드콥터의 진동 특성 분석과 공진 회피에 대한 연구

  • Kim, Sang-Ryul (Aircraft Structural Design Laboratory, Pusan National University) ;
  • Kim, Wie-Dae (Aircraft Structural Design Laboratory, Pusan National University)
  • Received : 2019.12.12
  • Accepted : 2020.05.27
  • Published : 2020.06.30
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Abstract

In this research, the vibration characteristics of composite quadcopter are analyzed, and avoidance design and analysis are performed to avoid resonance. The full platform of a commercial quadcopter with composite rotor arm is analyzed to see the vibration characteristics using FEM program. The manufactured stacking sequences of rotor arm is used for analysis, and the natural frequencies are compared with experimental results and simple analytic model results. It is also confirmed that the natural frequency of the particular mode is included within the operation range of the motor. The resonance avoidance design is carried out by selecting three variables from the existing model: stacking sequence, rotor-arm pipe length, and pipe thickness.

본 연구에서는 복합재료가 적용된 쿼드콥터의 진동 특성을 분석하고, 공진에 대해 회피 설계 및 해석을 수행하였다. 로터-암의 파이프가 복합재료로 구성된 상용 쿼드콥터의 플랫폼을 모사하고 상용 해석 프로그램을 이용하여 진동 특성 분석을 하였다. 실제 적층 배열을 해석에 적용하고, 참고 문헌과의 비교를 통해 신뢰성을 판단하였다. 그리고 모터의 가동범위 내에 특정 모드의 고유 진동수가 포함되는 것을 확인하였다. 기존 모델에서 적층 배열, 로터-암의 길이, 두께의 총 3가지의 변수를 선정해 공진 회피 설계를 수행하였다. 공진 회피 설계의 3가지 변수에서 각 해석의 결과를 비교한 후, 공진 회피 설계의 효율성 측면에서 방향을 제시하였다.

Keywords

References

  1. Jeong, J.H., "Development Status of the Drones and Prospect for the Market," The Optical Journal, Vol. 158, No. 6, 2015, pp. 40-47.
  2. Park, J.K., Seo, B.K., and Oh, C., "Development of High-tech Industry and the Evolution of Chinese Industrial Policy: Case of Drone Industry," The Journal of Modern China Studies, Vol. 19, No. 1, 2017, pp. 175-210. https://doi.org/10.35820/JMCS.19.1.6
  3. Paredes, J.A., Acevedo, J., Mogrovejo, H., Vilaita, J., and Furukawa, R., "Quadcopter Design for Medicine Transportation in the Peruvian Amazon Rainforest," Proceeding of IEEE XXIII International Congress on Electronics, Electrical Engineering and Computing. IEEE, Piura, Peru, Aug. 2016.
  4. Verbeke, J., and Debruyne, S., "Vibration Analysis of a UAV Multirotor Frame," Proceedings of ISMA 2016 Inernational Conference on Noise and Vibration Engineering, Leuven, Belgium, Sep. 2016.
  5. Kim, M.S., Kim, J.N., Kim, J., and Kang, B.S., "Study on Analysis of Vibration Characteristics and Modal Test for a Quad- Rotor Drone," Journal of the Korean Society for Precision Engineering, Vol. 33, No. 9, 2016, pp. 707-714. https://doi.org/10.7736/KSPE.2016.33.9.707
  6. Lee, S.C., Son, I.S., and Heo, K.D., "Vibration Analyses and Design of Resonance Avoidance of the Unmanned Helicopter Master," Journal of the Korean Society for Precision Engineering, Vol. 28, No. 8, 2011, pp. 951-958.
  7. Thomson, W., Theory of Vibration with Applications, CRC Press, 2018.
  8. Barbero, E.J., Finite Element Analysis of Composite Materials Using ABAQUS, CRC Press, 2013.
  9. Hong, D.K., Jeong, J.B., Jung, S.W., Kim, G.B., and Ahn, C.W., "Investigating Natural Frequency Analysis and Measurement of Railway Vehicle to Avoid Resonance," The Korean Society for Noise and Vibration Engineering, Vol. 22, No. 8, 2012, pp. 713-719. https://doi.org/10.5050/KSNVE.2012.22.8.713