Wind loads and wind-induced dynamic behavior of a single-layer latticed dome

Uematsu, Yasushi; Yamada, Motohiko; Inoue, Akira; Hongo, Takeshi

doi:10.1016/s0167-6105(97)00133-5

Cited by 58 publications

(19 citation statements)

References 9 publications

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“…The POD is a technique that allows one to obtain good approximations of the spatial modes of vibration and the dynamics of a system using the response of the system to various excitations. Introduced in the context of meteorology and wind engineering to analyze experimental data (Cenedese et al 1997;Jeong & Bienkiewicz 1997;Kikuchi et al 1997;Sahan et al 1997;Tamura et al 1997), the POD has been used for a wide variety of problems, such as wind loads calculations (Ho et al 1995;Bienkiewicz 1996;Uematsu et al 1997). The wide applicability of the method is due to the fact that it is only based on the assumption of a low-dimensionality of the dynamics of large systems (Chambers et al 1988;Georgiou & Schwartz 1996).…”

Section: Introductionmentioning

confidence: 99%

Reduced-Order Models of Unsteady Viscous Flows in Turbomachinery Using Viscous–inviscid Coupling

Epureanu

Hall

Dowell

2001

Journal of Fluids and Structures

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Section: Introductionmentioning

confidence: 99%

Reduced-Order Models of Unsteady Viscous Flows in Turbomachinery Using Viscous–inviscid Coupling

Epureanu

Hall

Dowell

2001

Journal of Fluids and Structures

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“…Many scholars have studied the calculation method of wind-induced vibration coefficient of long-span spatial structures, and the wind-induced vibration coefficient was proposed based on responses, which was defined as the ratio of the possible maximum wind-induced response to the mean response of the structure in the wind duration (Chen et al [23] and Uematsu et al [24]). Also, the wind-induced vibration coefficient of element internal force and that of nodal displacement are commonly adopted.…”

Section: Analysis Of Wind-induced Vibration Coefficientmentioning

confidence: 99%

Wind-Induced Response Analysis of the Cylindrical Reticulated Mega-Structures

He¹,

Zhou²,

Hai-shun³

2016

Volume 12 Number 1

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ABSTRACT:With the further increase of span of spatial structures, wind load becomes one of the governing factors in structural design. Attention is paid to wind-induced response analysis of spatial grid structures in the recent years. Research on the wind-induced responses of the cylindrical reticulated mega-structure with double-layer plane-plate grid substructures is conducted by time-history method in this paper. The basic distribution laws of the wind-induced member internal forces and nodal displacements of both the main structure and substructures are first analyzed. By detailed parametric analyses, the effect of the geometric parameters, damping ratio, load, boundary condition, and wind velocity on structural wind-induced response is then studied. Finally the structural wind-induced vibration coefficients are analyzed, and their rational values are recommended. All this work will provide theoretical guidance to the wind-resistance design of this kind of structure.

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“…For wind pressure field reconstruction on indirectly measured points on a model surface, Uematsu and Yamada [8] applied POD to investigate the structure of the pressure field on spherical domes and to generate wind loads at the interior nodes of the network by superimposing the first eight eigenfunctions of pressure obtained from POD analysis. They considered that mismatch between high-frequency pressure fluctuations of experiment and simulation may not significantly affect the dome's general response.…”

Section: List Of Symbolsmentioning

confidence: 99%

Wind Tunnel Tests and Wind-Induced Vibration Analysis of Spherical Domes

Tamura¹

2006

Volume 2 Number 1

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A series of wind pressure measurements on the surfaces of spherical domes are carried out in an atmospheric boundary-layer wind tunnel. The wind pressure distributions on the surfaces of spherical domes including mean and standard deviation are presented.Effects on wind pressure distribution due to wall-height-to-span ratio and rise-to-span ratio, terrain type and Reynolds number are discussed. This study focuses on wind-induced vibration analysis. The Proper Orthogonal Decomposition (POD) technique is adopted to reconstruct the wind pressure field for reticulated spherical domes with different mesh size and shape, and compared with those obtained from a wind-tunnel test model. A new treatment of non-uniformly distributed taps is proposed. Different treatments lead to different optimal problems with different physical meanings. For mode superposition analysis of wind-induced vibration analysis, a new matrix, designated by the authors as a mode-load-correlation matrix, is proposed to determine the special mode that contributes most to the wind effects. This mode contributes most to the background response and significantly to the resonant part. The physical meaning of this matrix is the spatial distribution of structural response. The advantage is that it only takes into account the known variables in the motion equation, without any quasi-static or dynamic assumption. Finally, the application of this matrix to background response is presented.

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Wind loads and wind-induced dynamic behavior of a single-layer latticed dome

Cited by 58 publications

References 9 publications

Reduced-Order Models of Unsteady Viscous Flows in Turbomachinery Using Viscous–inviscid Coupling

Reduced-Order Models of Unsteady Viscous Flows in Turbomachinery Using Viscous–inviscid Coupling

Wind-Induced Response Analysis of the Cylindrical Reticulated Mega-Structures

Wind Tunnel Tests and Wind-Induced Vibration Analysis of Spherical Domes

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