Numerical study of a new variable friction TMD - Details

Author：

Qin, Li (Qin, Li.) | Yan, Weiming (Yan, Weiming.) (Scholars：闫维明) | Guo, Shengbo (Guo, Shengbo.)

Indexed by：

EI Scopus

Abstract：

The　paper　proposes　a　new　variable　friction　system,　of　which　the　friction　force　can　increase　linearly　with　the　displacement　of　system.　This　new　system　can　be　used　in　TMD　to　avoid　the　disadvantage　of　Coulomb　friction　TMD.　Using　first　order　harmonic　balance　method,　the　equivalent　damping　ratio　and　frequency　of　SDOF　variable　friction　system　is　deduced　and　analyzed.　The　frequency　response　characteristics　of　SDOF　variable　friction　system　is　discussed.　The　control　effectiveness　of　variable　friction　TMD　under　harmonic　excitation　is　analyzed　theoretically.　The　results　demonstrate　that　the　frequency　response　curves　of　variable　friction　TMD　and　classically　damped　TMD　are　similar　and　both　can　effectively　reduce　structural　response　under　harmonic　excitation.　©　(2011)　Trans　Tech　Publications.

Keyword：

Friction Frequency response Harmonic analysis Construction equipment Civil engineering Building materials Tribology

Author Community：

[ 1 ] [Qin, Li]School of Architecture and Civil Engineering, Xiangfan University, No. 7, Longzhong Road, Xiangcheng District, Xiangyang, 441021, China
[ 2 ] [Yan, Weiming]Beijing Laboratory of Earthquake Engineering and Structure Retrofit, Beijing University of Technology, No.100, Ping Le Yuan, Chao Yang District, Beijing, 100124, China
[ 3 ] [Guo, Shengbo]School of Architecture and Civil Engineering, Xiangfan University, No. 7, Longzhong Road, Xiangcheng District, Xiangyang, 441021, China