Results 31 to 40 of about 2,493 (156)
Japan Architectural ReviewCausal hysteretic damping, extended Rayleigh damping, and uniform damping models exhibit frequency‐independent damping ratios over a wide frequency range.
Akira Ota +4 more
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INFLUENCE OF MATERIAL DAMPING ON THE RESPONSE OF UNDERGROUND STRUCTURES SUBJECTED TO EARTHQUAKE
Acta Polytechnica CTU Proceedings, 2020 The paper describes a finite element simulation of the response of a real underground structure subjected to earthquake using GEO5 FEM program. It concentrates on the influence of material damping with respect to a specific type of boundary condition ...
Veronika Pavelcová +3 more
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Frontiers in Built EnvironmentRecent seismic analyses indicate that the structural damping ratio should be considered frequency-independent, for safe and accurate estimations. In response, damping models like the Wilson–Penzien (WP) damping model, that is one of the modal damping ...
Naohiro Nakamura +3 more
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Time-history analysis method for soil-underground structure system based on equivalent linear method
Yantu gongcheng xuebao, 2018 Site seismic analysis plays an important role in the practical seismic design of underground structures, and the equivalent linear method is a widely-used approach for the seismic response analysis of one-dimensional soil layer.
DU Xiu-li , XU Zi-gang , XU Cheng-shun , LI Yang , JIANG Jia-wei
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Applied Sciences, 2021 In this paper, the vibration analysis of a partially constrained layer damping plate subjected to moving loads is investigated. In addition, the first four order damping loss factor of the system is optimized with the location of partially constrained ...
Yun Qin +3 more
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Fast frequency response computation for Rayleigh damping [PDF]
International Journal for Numerical Methods in Engineering, 2007 AbstractWe present a model reduction Lanczos method for the computation of frequency response functions of Rayleigh damping problems. The connection with modal extraction and modal superposition is made. The usual model reduction methods require complex arithmetic. With the proposed method, complex arithmetic is only used for the reduced problem.
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Equivalent Modal Damping Ratios of a Composite Tube-Type Tall Building to Dynamic Wind Loading
Shock and Vibration, 1996 This article discusses computing methods of the equivalent modal damping ratio for a composite tube-type tall building. The equivalent damping ratio of a composite structure under wind-induced vibrations encompasses the combined effects from the ...
B.C. Huang +3 more
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Unusual properties of adiabatic invariance in a billiard model related to the adiabatic Piston problem [PDF]
Theoretical and Applied MechanicsWe describe the point spectra of some dissipative version of the celebrated “Rayleigh loaded string”, an elastic string of finite length carrying a number n ⩾ 1 of equally spaced, equal point masses, which is a basic model that exhibits a band structure ...
Skinner Joshua, Neishtadt Anatoly
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Applied Sciences, 2019 Aerodynamic damping predictions are critical when analyzing aeroelastic stability. A novel method has been developed to predict aerodynamic damping by employing two single time-domain simulations, specifically, one with the blade impulsed naturally in a ...
Jianxiong Li +4 more
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Nuclear Engineering and TechnologyIn order to efficiently perform the dynamic analysis of nuclear power plants considering soil-structure interaction, two partitioned algorithms in parallel manner were proposed, in which the factors such as structural damping, soil nonlinearity, and ...
Lei Gao, Shaolin Chen, Xiaoying Sun
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