Design and mechanical characteristics analysis of a new viscous damper for piping system

In this paper, the design of a new viscous damper is presented and its mechanical characteristics are investigated experimentally. The motion equation of a system consisting of a drop machine and the damper is set up. By numerically simulating this equation, the curve of the damper cavity generatrix is obtained on the assumption that the resisting force is constant. Then the new damper with big capacity and high-energy dissipation rate is designed. Drop tests using this damper and a Pro225-damper bought in the market are performed, respectively. On one hand, the experimental resisting forces of the new damper approximate constants, which illustrates that the simulation is viable. On the other hand, some advantages of the new damper over the Pro225-damper are found.

[1]  Luis M. Moreschi,et al.  Seismic Analysis and Design with Maxwell Dampers , 2003 .

[2]  P. Mourey,et al.  Passive Damping Devices For Aerospace Structures , 2002 .

[3]  Stuart S. Chen,et al.  The Seismic Response of a 1:3 Scale Model R.C. Structure with Elastomeric Spring Dampers , 1995 .

[4]  Michael C. Constantinou,et al.  Fractional‐Derivative Maxwell Model for Viscous Dampers , 1991 .

[5]  D. P. Taylor,et al.  Viscous damper development and future trends , 2001 .

[6]  Hua Hongxing,et al.  Design method for fluid viscous dampers , 2008 .

[7]  G. Apostolakis,et al.  Special committee review of the Nuclear Regulatory Commission's severe accident risks report (NUREG--1150) , 1990 .

[8]  Lothar Gaul,et al.  Lyapunov design of damping controllers , 2003 .

[9]  T. T. Soong,et al.  STRUCTURAL CONTROL: PAST, PRESENT, AND FUTURE , 1997 .

[10]  Gloria Terenzi,et al.  Dynamics of SDOF Systems with Nonlinear Viscous Damping , 1999 .

[11]  Rakesh K. Goel,et al.  Seismic response of linear and non‐linear asymmetric systems with non‐linear fluid viscous dampers , 2005 .

[12]  K. Li,et al.  Experiments on the Effect of an Impact Damper on a Multiple-Degree-of-Freedom System , 2006 .

[13]  M. D. Martínez-Rodrigo,et al.  An optimum retrofit strategy for moment resisting frames with nonlinear viscous dampers for seismic applications , 2003 .

[14]  Michael C. Constantinou,et al.  Seismic response of structures with supplemental damping , 1993 .

[15]  Nicos Makris,et al.  Viscous Dampers: Testing, Modeling and Application in Vibration and Seismic Isolation , 1990 .

[16]  Ming Miao.  DYNAMIC TEST AND SIMULATION TO THE NEW MODEL OF HYDRAULIC-GAP BUFFER , 2006 .

[17]  Shambhu Sinha.  Seismic Applications of Energy Dampers , 2004 .

[18]  Deh-Shiu Hsu,et al.  Shear‐thinning effects in annular‐orifice viscous fluid dampers , 2007 .

[19]  Michael C. Constantinou,et al.  Experimental study of seismic response of buildings with supplemental fluid dampers , 1993 .