Paper
Optimum Parameter of Viscous Damper for Damped Adjacent Coupled System
- Authors:
- C C Patel; R S Jangid
- Abstract
- In this paper, the dynamic response of two adjacent single-degree-of-freedom (SDOF) structures connected by viscous damper is investigated under base acceleration. The base acceleration is modeled as harmonic excitation as well as stationary white noise random process. The governing equations of motion of the coupled structure are derived and solved for relative displacement and absolute acceleration responses. The viscous damper is found to be effective for response control of adjacent structures by connecting with appropriate damping coefficient of damper. The optimum damping of viscous damper and corresponding response quantities are obtained for different frequency ratio and mass ratio for viscously damped connected structures. Explicit expressions for optimum damper damping are then obtained for minimum responses of the coupled structures using curve-fitting technique that can be conveniently used for applications in dynamical systems. The error in these expressions is found to be negligible. Further, numerical results had indicated that the frequency ratio affect the optimum damper damping and corresponding responses, where as mass ratio and damping of the connected structures does not have noticeable effect on the optimum responses. A simulation study has also been carried out to examine the effectiveness of the explicit expressions.
- Keywords
- adjacent structures; optimum damping; steady-state response; stationary response; viscous damper
- StartPage
- 22
- EndPage
- 30
- Doi