systems modeled by nonlinear function. ... Frequency domain Volterra model is applied to nonlinear parameter identification procedure for dynamic ... nonlinear differential equation of the system by Schetzen's method(1980), are directly used for modeling
이 논문에서는 각각 P-F 시스템, FPS, LRB 시스템이 설치되어 있을때의 세장한 강체 블록의 동적거동에 대해 살펴보았다. ... 적충되어 있는 다중 블록 시스템은 역사적 건물이나 문화재등에 자주 사용되고 있다. ... 이러한 구조시스템은 지진에 매우 취약하고, 특히 세장한 구조물인 경우에는 낮은 수준의 지반가속도에 대해서도 전도가 일어날 수 있다.
구조물 지진해석을 위한 구조물 -지반 상호작용 해석에서도 비선형 지반 특성을 고려한 비선형해석이 요구되고 있어 구조물 비선형 지진 해석을 위해 기초 지반에 대한 수평방향 비선형 해석을 수행하였다. 기초지반은 UBC 분류에서 규정한 보통지반인 Sn 지반과 연약지반인 SE..
were designed, and the seismic performance thereof was compared using nonlineardynamic analysis. ... The seismic force to equipment calculated from the nonlineardynamic analysis was significantly lower ... In this study, alternative seismic force-resisting systems for plant structure supporting equipment
slenderness ratio >> Boundary condition : nonlinear kinematic/dynamic boundary condition ... variation of the submerged depth of source and inflow speed, and discuss the difference of the wave systems ... kinematic/dynamic boundary condition × Uniform flow + disturbed potential due to an object × In small
통해 그 시스템의 특성을 알아내는 방법이다. ... 시뮬레이션의 역사와 분자동력학먼저 처음 컴퓨터 시뮬레이션은 역시 첫 세대 컴퓨터인 MANIAC으로 시작된다.1951년 개발된 MANIAC은 1953년 Fermi, Pasta와 Ulam의 Nonlinear ... 그리고 1957년 Alder과 Wainwright가 hard sphere(분자를 단단한 공으로 묘사) 모델을 이용해 분자동역학 (Molecular dynamics) 방식으로 뉴턴의
dynamic responses are expected, are modeled by nonlinear finite elements. ... It is observed that the dynamic responses of a SSI system to a three-directional motion have a predominant ... In this study, nonlinear earthquake responses of a soil-structure interaction(SSI) system which is subjected
Seismic fragility curves were developed from the incremental dynamic analyses (IDA) performed by using ... To investigate the effects of combined earthquake-resistant systems, shear walls and five types of dampers ... is evident from the results that the seismic performance of the proposed combined shear wall-damper system
of collapse mechanisms and damage distribution for dynamic loads were analyzed. ... As a result of analyzing the nonlinear response and damage distribution of the steel ordinary moment ... In this study, a procedure to improve the seismic performance and avoid inferior dynamic response was
dynamic analyses and suggestions were proposed. ... damper retrofit system is mainly to enhance the energy dissipation capacity of the system and resultes ... The original building and 3 retrofitted buildings were evaluated using the nonlinear static and nonlinear
, is evaluated through nonlineardynamic analyses. ... A total of 80 ground acceleration data were used to perform the nonlineardynamic analysis to measure ... performance of concrete-steel composite moment frame structures equipped with seismic retrofitting systems
/nonlinear structural system subjected to multiple support excitation. ... for a couple of linear and nonlinear structural systems were compared with those by a general-purpose ... This paper presents a simple modification technique of finite element model for dynamic analysis of linear
The unscented Kalman filter (UKF), which is widely used to estimate the states of nonlinear dynamic systems ... The results demonstrate that the proposed method can accurately track nonlinearsystem states even when ... 비선형 동적시스템을 표현하기 위해 널리 알려진 Bouc-Wen 모델을 사용하였고, 비선형성 고려가 가능한 칼만필터 중 UKF를 선정하였다.
Evaluating nonlinear response of a MOOF system under dynamic stochastic loads such as seismic excitation ... is replaced by a simple nonlinear
equivalent system(ENS) . ... The ENS retains the most important properties of the original system such as
dynamic characteristics
The hydrostatic force with nonlinear effects, the linearized hydrodynamic force, and the pneumatic and ... In this paper, dynamic response analysis of a heave compensation system is performed for offshore drilling ... The dynamic simulation of the heave compensation system of the semi-submersible rig, which is available
The saturation phenomenon, which is well known in deterministic nonlinearsystem, did not take place ... The nonlinear modal interaction of an autoparametric system under a broadband random excitation is investigated ... By means of Gaussian closure scheme the dynamic moment equations explaining the random responses of the
This paper established the dynamic model of a flexible Timoshenko beam capable of geometrical nonlinearities ... constraint equations are adjoined to the system using Lagrange multipliers. ... are derived by using Hamilton principle and are formulated in terms of finite elements in which the nonlinear
Nevertheless, studies on dynamic characteristics of hydraulic system including counter balance valve ... In this study, for the purpose of easy estimation about dynamic characteristics of hydraulic system including ... were analysed by numerical integration using Runge-Kutta method, because the equations contain various nonlinear
dynamic response behaviors of the system are examined. ... Nonlinearsystem responses of an impact system under randomly perturbed harmonic excitations are predicted ... 랜덤동요된 조화가진력을 받는 임팩트시스템의 비선형거동을 개발된 반해석적절차에 의해 확률영역에서 분석하였다.
The effect of the device is verified by nonlineardynamic analyses using seven earthquake records. ... energy is concentrated on the hybrid damper and the maximum interstory drift of the SMRF with damping system