NEHRP Clearinghouse
- Title
- Dynamic Response of Tuned Secondary Systems.
- File
- PB81175820.pdf
- Author(s)
- Ruzicka, G. C.; Robinson, A. R.
- Source
- National Science Foundation, Washington, DC. Office of Planning and Resources Management., November 1980, 145 p.
- Identifying Number(s)
- ['STRUCTURAL RESEARCH SER-485', 'UILU-ENG-80-2020']
- Abstract
- This study investigates the dynamic response of secondary systems tuned to a natural frequency of the primary system. Consideration is given to simple structural models composed of a single-degree-of-freedom secondary system attached to a single-degree-of-freedom primary system. Formulas for the response of the secondary system are obtained for various damping configurations. The effects of a slight detuning of the secondary system are also examined. The response expressions are then used to develop estimates for the maximum response of the secondary system. The accuracy of these estimates is assessed in a numerical study in which the exact and approximate responses are compared. Lastly, an expression is obtained for the response of a multi-degree-of-freedom tuned secondary system attached to a multi-degree-of-freedom primary system.
- Keywords
- Structures; Seismic waves; Mathematical models; Dynamic response; Ground motion; Earthquake engineering; Degrees of freedom; Earthquakes; Dynamic structural analysis