Paper Information

Journal:   MODARES MECHANICAL ENGINEERING   JANUARY 2017 , Volume 16 , Number 10 #F0070; Page(s) 412 To 420.
 
Paper: 

PARAMETER ESTIMATION OF STOCKBRIDGE DAMPER AND STUDYING ITS ENERGY ABSORPTION USING MODEL UPDATING METHOD AND EXPERIMENTAL MODAL ANALYSIS

 
 
Author(s):  MINAEI MASOUD, SADEGHI MORTEZA*
 
* MECHANICAL ENGINEERING DEPARTMENT, UNIVERSITY OF TABRIZ, TABRIZ, IRAN
 
Abstract: 

In transmission lines the environmental disturbances causes vibration of the lines (cables) as well as the structure which have destructive effect on the line and its components. To overcome this harmful effect, it seems necessary to reduce the transmission line vibration level. One of the most frequent methods for reducing the transverse vibration of cables is using dynamical dampers such as Stockbridge damper.
Complication of calculating the bending stiffness as well as the energy absorption mechanism of these dampers makes it more difficult to be modeled. In this study the dynamical characteristics of Stockbridge damper considering the damping effect are studied. For system identification of Stockbridge damper, it is modeled as a 4DOF system and its various unknown parameters are obtained using model updating method and experimental modal analysis (EMA) which is optimized by Artificial Intelligence (AI) method. Then the effects of varying these parameters on its energy absorption are discussed. Finally, to validate the analytical results, some experimental tests were carried out on the energy absorption of Stockbridge damper. The analytical results are in good agreement with the experiments.

 
Keyword(s): STOCKBRIDGE DAMPER, VIBRATION OF POWER TRANSMISSION LINE, MESSENGER CABLE, EXPERIMENTAL MODAL ANALYSIS (EMA), MODEL UPDATING
 
References: 
  • ندارد
 
  Persian Abstract Yearly Visit 23
 
Latest on Blog
Enter SID Blog