The boundary reaction method(BRM) is a substructure time domain method, it removes global iterations between frequency and time domain analyses commo..
location of the dampers, is once again confirmed in the analysis. ... Steel structures with added viscoelastic dampers are analysed to investigat their behavior under earthquake ... The well known phenomenon, that the effectiveness of the viscoelastic dampers depends greatly on the
본 연구에서는 Coil Spring과 Viscous Damper 시스템의 동특성 분석을 위한 특성실험을 수행하였다. ... Coil Spring과 Viscous Damper 시스템은 원자력발전소 비상디젤발전기의 진동저감 및 지진력 저감을 위한 장치로 선정되었다. ... The damping properties of the viscous damper changes as the variation of velocity.
First, a two span bridge was built equipped with a MR-damper, which constitutes a two-span MR-damper ... In the case where a MR-damper is employed for vibration control, it is important to decide on how much ... This paper aims to present a MR-damper's control capacity suitable for the capacities of the structure
Installation of the damper-brace system in a structure governed by flexural behavior is not suitable. ... In this paper, a friction damper applying flexibility of shear wall is proposed in order to reduce the ... To evaluate performance of the proposed friction damper, nonlinear time history analysis is executed
본 연구는 기존 보도교의 TMD를 이용한 진동제어에 대해 기술한 논문이다. 본 연구의 대상인 보도교는 단순 강 박스형 교량이고 주 경간이 47.7m이다. 교량의 중량은 11.17kN/m이고, 매우 작은 감쇠율을 갖고 있으며, 1차 고유진동수가 1.84Hz이다. 이 진동..
General method is suggested in order to reduce the structural seismic response by using friction dampers ... proposed simply design procedure of a single degree of freedom (SDOF) structure equipped with friction dampers ... It is concluded that the proposed method is quite simple for the design of friction dampers to reduce
General method is suggested in order to reduce the structural seismic response by using friction dampers ... proposed simply design procedure of a single degree of freedom (SDOF) structure equipped with friction dampers ... It is concluded that the proposed method is quite simple for the design of friction dampers to reduce
damper slip in specific stories. ... Friction dampers using the flexural deformation of shear walls can be installed as coupling beam system ... To verify the seismic control performance of proposed friction dampers, numerical nonlinear analysis
토목구조물에 능동형 질량동조감쇠장치를 설치할 경우에 설치장소의 크기는 제한되며 그에 따라 질량감쇠증기의 최대진폭이 제한되는 것이 일반적이다. 이 연구에서는 벽체 스프링과 고정장지를 이용하여 능동형 질량동조감쇠장치의 진폭을 제한하면서도 제어성능을 적절히 유지시킬 수 있는..
Installation of the damper-brace system in a structure governed by flexural behavior is not suitable. ... In this paper, a friction damper applying flexibility of shear wall is proposed in order to reduce the ... To evaluate performance of the proposed friction damper, nonlinear time history analysis is executed
The damper shows dynamic behavior of both tuned liquid column damper (TLCD) and tuned sloshing damper ... The proposed damper has the advantage of controlling both responses with a single damper. ... This study deals with the design of a bi-directional liquid damper for a SDOF structure.
Test results show that the higher level of control force generated by the Mr damper causes the lower ... In this paper, structural control performance of the magneto-rheological (MR) damper installed in a real-scaled ... structural model identified from the forced vibration testing results of a real-story building, and an MR damper
The produced energy is supplied to the MR damper. ... However, when a mount of MR dampers are used to a large? ... Thus, the MR damper with EMI system does not require any power at all.
The proposed damper acts as a liquid column vibration absorber (LCVA) and a tuned sloshing damper(TSD ... This paper proposes a tuned liquid column sloshing damper(TICSD) and its optimal design to mitigate ... terms of live load, area and volume due to its installation, comparing to each installation with two dampers
In this study, nonlinear dynamic characteristics of a tuned liquid column damper (TLCD) varying with ... The tuned mass damper (TMD) analogy of a TLCD is used to simplify the formulation, in which involves
Seismic control performance of MR dampers, which have severe nonlinearity, is different with respect ... numerical analysis for various natural frequencies of the structures and design parameters of the MR damper ... system represented by an equivalent damping ratio for single-degree-of-freedom (SDOF) systems with a MR damper
The purpose of this paper is to present the optimal design method of viscoelastic dampers and support ... The dynamics of visco-elastic dampers and support braces connected in series is modeled by state equation ... In the design example, it is confirmed that the design of dampers considering support brace stiffnesses