Journal of the Korea institute for structural maintenance and inspection (한국구조물진단유지관리공학회 논문집)

Korea Institute for Structural Maintenance Inspection (한국구조물진단유지관리공학회)
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A Study on Dynamic Analysis Model and Stability of Stone Cultural Properties of Inverted Pendulum Type with 5 Joints

5개의 연결부를 가지는 역진자형 석조문화재의 동적 해석모델 및 안정성 연구

  • Received : 2021.02.01
  • Accepted : 2021.04.12
  • Published : 2021.06.30
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Abstract

Architectural cultural properties suffer a lot of damage due to various environmental factors. In order to preserve damaged cultural properties, preventive preservation and long-term preservation management are becoming more important. Therefore, research on a scientific non-destructive testing method applicable to regular inspection is required. For related research, DangGan with a high flag-pole shape was selected as the subject of study among various cultural properties. Among the preserved DangGans, a basic study was conducted on the analysis technique to evaluate the structural stability by selecting Treasure No. 49 Naju SeokDangGan. An idealized model was presented and a multi-degree of freedom equation of motion was derived. In addition, an equation for estimating the critical stiffness value for each joint position is presented.

건축문화재들은 다양한 환경적 요인들로 인해 많은 손상이 발생된다. 손상된 문화재를 보존하기 위해서 예방보존 및 장기적인 보존관리가 더욱 중요해지고 있다. 그래서 정기적인 점검 시에 적용 가능한 과학적인 비파괴 검사 방법에 대한 연구가 요구되고 있다. 관련된 연구를 위해서, 여러 문화재들 중에서 높은 깃대 형상의 당간을 연구 대상으로 선정하였다. 보존되고 있는 당간들 중에서 보물 제49호 나주 석당간을 선정하여, 구조 안정성을 평가하기 위한 분석 기법에 대한 기초적인 연구를 진행하였다. 이상화된 모델을 제시하고, 다자유도 운동방정식을 유도하였다. 그리고 연결부 위치별 임계 강성 값을 추정할 수 있는 식을 제시하였다.

Keywords

References

  1. Eom, G. P. (2007), Buddhist Banner Pole and Stone Posts in Korea, Hakyoun, 15-23, 118-134.
  2. Korea Institute of Construction Safety Technology (KICST). (2004), Report on the Precision Safety Diagnosis of Naju Suk-Dang-Gan, KICST, Korea, Seoul, 1-165.
  3. Korea Institute of Structural Safety (KISS). (2011), Structural Safety Evaluation Report after Restoration of Naju Suk-Dang-Gan, Report, KISS, Korea, Gwangju Metropolitan City, 1-117.
  4. Cultural Heritage Administration (CHA). (2021), Korea National Heritage Online. Korea, Daejeon: Naju SukDangGan. Available at: http://www.heritage.go.kr/heri/idx/index.do.
  5. Choi, J. S., and Cho, C. H. (2021), Estimation of Dynamic Characteristics Before and After Restoration of the Stone Cultural Heritage by Vibration Measurement, Journal of the Korea Institute for Structural Maintenance and Inspection, KSMI, 25(1), 103-111. https://doi.org/10.11112/JKSMI.2021.25.1.103
  6. Downs, B. (1977), Transverse Vibrations of Cantilever Beams Having Unequal Breadth and Depth Tapers, Journal of Applied Mechanics, ASME, 44, 737-742. https://doi.org/10.1115/1.3424165
  7. Karnovsky, I. A., and Lebed, O. I. (2000), Formulas for Structural Dynamics: Tables, Graphs and Solutions, McGraw-Hill, 355-395.
  8. Yadav, S. K., Sharma, S., and Singh, N. (2012), Optimal Control of Double Inverted Pendulum Using LQR Controller, IJARCS, 2(2), 189-192.
  9. Kim, H. S. (2002), A Study on the Posture Stabilization of Single Leg Robot, KAIST, Master's thesis, 1-11.
  10. Meriam, J. L., and Kraige, L. G. (2013), Dynamics, Wiley, 7th ed., Ch. 1, Ch. 5, Ch. 6., and App. B.
  11. Thomson, W. T. (1993), Theory of Vibration with Applications, Prentice Hall, 4th ed., Ch. 7.
  12. Chopra, A. K. (2017), Dynamics of Structures, Pearson, 5th ed., Ch.1.
  13. National Research Institute of Cultural Heritage (NRICH). (2018), Periodic Survey of Nationally Designated Buildings and Cultural Properties 2017, Korea, 3, 406-419.
  14. Gere, J. M., Timoshenko, S., Mechanics of Materials, Kim, M. S., Bang, S. H., Yang, W. H., Chang, D. I., and Cho, H. N. (1996), Cheong-Moon-Gak Publishing Co., Korea, 2nd., Ch. 11.