Earticle

초록

영어

This study investigates the effect of different objective functions on the topology optimization of a loudspeaker basket for structural resonance avoidance. Three objective functions were considered: maximization of the first natural frequency, minimization of static strain energy, and minimization of dynamic strain energy. The results show that, for all objective functions, the first natural frequency increased significantly compared to the initial design, while both static and dynamic strain energies were reduced, indicating effective suppression of structural resonance. Although the performance differences among the objective functions were not substantial, minimization of static and dynamic strain energy exhibited higher computational efficiency compared to natural frequency maximization. In particular, minimization of static strain energy demonstrated advantages in computational efficiency and ease of implementation, suggesting it as a practical alternative for resonance-avoidance design of loudspeaker baskets. This study highlights the importance of objective function selection by quantitatively comparing optimization outcomes under different formulations.

목차

Abstract
1. 서론
2. 이론적 배경
2.1 고유치 해석
2.2 정적 해석
2.3 동적 해석 – 주파수 응답 해석
3. 초기 설계 및 해석
4. 위상 최적 설계 정식화
4.1 위상 최적 설계를 위한 바스켓 모 델
4.2 위상 최적화 기법 및 파라미터 설정
5. 위상 최적화 결과
5.1 기준 파라미터 최적화 결과
5.2 필터 반경 변화에 따른 최적화 결과
5.3 페널티 계수 변화에 따른 최적화 결과
6. 결론
후기
References

키워드

저자

• 김성민 [ Seongmin Kim | School of Mechanical and Aerospace Engineering, Gyeonsang National University ]
• 국정환 [ Junghwan Kook | Member, School of Mechanical Engineering, Gyeonsang National University ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국기계항공기술학회지(구 한국기계기술학회지) [Journal of the Korean Society of Mechanical and Aviation Technology ]

• 간기

  격월간

• pISSN

  1229-604X

• eISSN

  2508-3805

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 550 DDC 620