한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제18권3호
  • /
  • Pages.175-181
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  • 2001
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

불규칙 지반 가진력을 받는 탄성진자계의 비선형진동응답

Nonlinear Vibration Responses of a Spring-Pendulum System under Random Base Excitation

  • 조덕상 (영남대학교 공업기술연구소)
  • 발행 : 2001.03.01
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초록

An investigation into the response statistics of a spring-pendulum system whose base oscillates randomly along vertical and horizontal line is made. The spring-pendulum system with internal resonance examined is known to be a good model for a variety of engineering systems, including ship motions with nonlinear coupling between pitching and rolling motions. The Fokker-Planck equation is used to generate a general first-order differential equations for the random responses of the system are reduced to a system of autonomous ordinary differential equations. In view of equilibrium solutions of this system and their stability, the response statistics is examined. It is seen that increase in horizontal excitation level leads to a decreased width of the internal resonance region.

키워드

참고문헌

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