Earticle

초록

영어

To improve the seismic performance of a cabinet, a TMD was designed and its dynamic behavior was experimentally investigated as a basic study on vibration reduction. For TMD vibration test, a testing machine base, sliding base and jig were constructed. TMD and base were excited at the same frequency, and their natural frequencies showed a phase difference of approximately 90 degrees. The specifications of the experimental TMD were 20 kg mass, 10% damping ratio, and 7 L of oil. Seismic tests were conducted to investigate the dynamic behavior of the cabinet under earthquakes and the vibration characteristics of the cabinet with and without TMD. Vibration tests were conducted with the cabinet door fully closed, and the acceleration at the top of the cabinet was measured. The maximum acceleration was reduced by approximately 36% when TMD was installed compared to when it was not installed. The experimental results clearly demonstrated the effectiveness of TMD in reducing cabinet vibration.

목차

Abstract
1. 서론
2. TMD 설계 및 실험
2.1 TMD 설계 및 제작
2.2 TMD 실험 방법
2.3 캐비닛 TMD 실험방법
3. 실험 결과
3.1 TMD 감쇠 실험
3.2 TMD에 의한 캐비닛의 진동특성
4. 결론
References

키워드

캐비닛 동적거동 주파수 내진성능 동조질량댐퍼 진동 Cabinet Dynamic behavior Frequency Seismic performance TMD Vibration

저자

• 이창수 [ Chang Soo Lee | RMS Technology Co., LTD., Researcher, Ph.D. Student (Dept. of Mechanical Engineering, Sunmoon University) ]
• 정규철 [ Kyu Chul Jung | RMS Technology Co., LTD., Researcher, Ph.D. Student (Dept. of Mechanical Engineering, Sunmoon University) ]
• 권영철 [ Young Chul Kwon | Department of Mechanical Engineering, Sunmoon University ] Corresponding Author

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