Earticle

초록

영어

Free-vibration response of structures includes informations their inherent dynamic characteristics such as natural frequency and damping ratio. Especially, viscous and friction damping cause free-vibation response of structures to logarithmic and linear decrement, respectively. This paper proposes simultaneous estimation of viscous damping ratio and friction coefficient by using free-vibration response that inherently includes dynamic characteristics of structures. The viscous damping ratio and friction coefficient are estimated from the successive two peaks in both displacement and acceleration free-vibration response of single-degree-of-freedom(SDOF) system with both damping. The proposed method of simultaneous estimating of viscous damping ratio and friction coefficient using free-vibration response of structures was verified by numerical simulation of an assumed SDOF system.

목차

Abstract
 1. 서론
  1.1 연구배경 및 목적
 2. 점성과 마찰감쇠를 고려한 단자유도계 시스템
  2.1 운동방정식
  2.2 자유진동 변위 응답
  2.3 자유진동 가속도 응답
 3. 검증
 4. 결론
 REFERENCES

저자

• 이성경 [ Lee, Sung-Kyung | 전주비전대학교 건축과 조교수, 공학박사 ] Corresponding author

참고문헌