소음진동 (Journal of KSNVE)

한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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광대역 불규칙 가진력을 받는 탄성진자계의 내부공진효과

Influence of Internal Resonance on Responses of a Spring-Pendulum System under Broad Band Random Excitation

  • 이원경 (영남대학교 공과대학 기계공학부) ;
  • 조덕상 (한국전력기술(주) 원자로설계개발단)
  • 발행 : 1998.06.01
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초록

An investigation into the modal interaction of an autoparameteric systemunder broad-band random excitation is made. The specific system examined is a spring-pendulum system with internal resonance, which is known to be a good model for a variety of engineering systems, including ship motions with nonlinear coupling between pitching and rolling motions. By means of the Gaussian closure method the dynamic moment equations explaining the random responses of the system are reduced to a system of autonomous ordinanary differential equations of the first and second moments. In view of equilibrium solutions of this system and their stability we examine the system responses. The stabilizing effect of system damping is also examined.

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참고문헌

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