Journal of Engineering Education Research (공학교육연구)

Korean Society for Engineering Education (한국공학교육학회)
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A Study on Jet Engine Noise Analysis and Reduction for a Capstone Design Project

캡스톤 디자인 프로젝트 수행을 통한 제트엔진 소음특성 파악 및 저감 방안 연구

  • Kim, Sitae (Department of Mechanical Engineering, Korea Air Force Academy) ;
  • Kim, Hyuksoo (Department of Mechanical Engineering, Korea Air Force Academy) ;
  • Cho, Minhyuk (Department of Mechanical Engineering, Korea Air Force Academy)
  • 김시태 (공군사관학교 기계공학과) ;
  • 김혁수 (공군사관학교 기계공학과) ;
  • 조민혁 (공군사관학교 기계공학과)
  • Received : 2024.04.23
  • Accepted : 2024.06.21
  • Published : 2024.07.31
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Abstract

This study introduces a series of processes aimed at understanding the noise characteristics generated by jet engines and devising measures to mitigate them through interdisciplinary capstone design projects. During the project execution, educational methods were applied to foster 4Cs (creativity, communication, collaboration, critical thinking) competencies. Project objectives were set through team discussions, and individual team members were assigned primary roles to act as subgroup leaders. As a result, the project was executed as follows: combustion tests were conducted using an SR-30 turbojet engine to generate noise, and the locations and characteristics of the noise sources were identified using beamforming techniques and frequency analysis applied to a 30-microphone array. Additionally, chevron nozzles were designed and fabricated to confirm their noise reduction performance.

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References

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