Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2002.11b
  • /
  • Pages.719-724
  • /
  • 2002
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지

Improved dynamic model of the impact hammer

개선된 충격해머의 동역학적 모델

  • 임병덕 (영남대학교 기계공학부) ;
  • 최정현 (영남대학교 대학원 기계공학부) ;
  • 허준혁 (영남대학교 대학원 기계공학부)
  • Published : 2002.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

Impact hammer is widely used as a convenient excitation tool in structural modal testing though, little is known about the dynamic characteristics of its impulse mechanism. Transmission of the impulsive force to the structure depends m the dynamic properties of the impact hammer as well as the stiffness of the tip. In this study an improved dynamic model of the impact hammer is proposed with the consideration of structure to be tested. The deformation masses of hammer tip and structure are as well as their contact stiffness. Numerical results show that this model is useful for the prediction of the impulse duration and the condition of rebounce..

Keywords