The use of integrated pressures to determine overall wind- induced response

Steckley, Andrew; Accardo, Marco; Gamble, Scott; Irwin, Peter

doi:10.1016/0167-6105(92)90108-m

Cited by 24 publications

(6 citation statements)

References 1 publication

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“…It is noteworthy that the contribution of higher modes to the response can be estimated as the distributed force at different levels is obtained. Furthermore, the local aerodynamic characteristics of a test model can also be analyzed [23,24]. In addition, a SMPSS test with a lumped mass test model allows to estimate the contribution of both the inertial force and the external pressure to the shear, torque, bending moment along the height of the test model.…”

Section: Smpss Testmentioning

confidence: 99%

“…is the mass ratio. Solving Equation (23), yields y = −a + a − 4a (a + S ) 2a (24) By using the developed polynomial, the aerodynamic damping of a test model was evaluated and compared with that estimated by Equation (18) and the quasi-steady theory (Figure 14). The identified aerodynamic damping has been well used for response predictions and fatigue estimations of structures.…”

Section: Aerodynamic Damping Forcementioning

confidence: 99%

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Wind Tunnel Measurement Systems for Unsteady Aerodynamic Forces on Bluff Bodies: Review and New Perspective

Chen

Huang

et al. 2020

Sensors

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Wind tunnel tests have become one of the most effective ways to evaluate aerodynamics and aeroelasticity in bluff bodies. This paper has firstly overviewed the development of conventional wind tunnel test techniques, including high frequency base balance technique, static synchronous multi-pressure sensing system test technique and aeroelastic test, and summarized their advantages and shortcomings. Subsequently, two advanced test approaches, a forced vibration test technique and hybrid aeroelastic- force balance wind tunnel test technique have been comprehensively reviewed. Then the characteristics and calculation procedure of the conventional and advanced wind tunnel test techniques were discussed and summarized. The results indicated that the conventional wind tunnel test techniques ignored the effect of structural oscillation on the measured aerodynamics as the test model is rigid. A forced vibration test can include that effect. Unfortunately, a test model in a forced vibration test cannot respond like a structure in the real world; it only includes the effect of structural oscillation on the surrounding flow and cannot consider the feedback from the surrounding flow to the oscillation test model. A hybrid aeroelastic-pressure/force balance test technique that can observe unsteady aerodynamics of a test model during its aeroelastic oscillation completely takes the effect of structural oscillation into consideration and is, therefore, effective in evaluation of aerodynamics and aeroelasticity in bluff bodies. This paper has not only advanced our understanding for aerodynamics and aeroelasticity in bluff bodies, but also provided a new perspective for advanced wind tunnel test techniques that can be used for fundamental studies and engineering applications.

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Section: Smpss Testmentioning

confidence: 99%

Section: Aerodynamic Damping Forcementioning

confidence: 99%

Wind Tunnel Measurement Systems for Unsteady Aerodynamic Forces on Bluff Bodies: Review and New Perspective

Chen

Huang

et al. 2020

Sensors

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“…Nonetheless, the HFBB maintains its attractiveness in cases where the mode shapes do not depart too far from linear. Individual researchers (e.g., Chen and Kareem 2005;Huang and Chen 2006) and wind tunnel laboratories (e.g., Steckley et al 1992;Ho et al 1999) have their own favorite analysis format based on either SPM or HFBB. Some groups (e.g., Kareem 2004, 2005) prefer to establish equivalent static wind loads (ESWL) from either SPM or HFBB for subsequent response analysis, while others directly employ the data for calculating response components (Steckley et al 1992;Tamura et al 1996;Ho et al 1999;Fritz and Simiu 2005).…”

Section: Estimation Of Aerodynamic Loadsmentioning

confidence: 99%

e-Analysis of High-Rise Buildings Subjected to Wind Loads

2008

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The NatHaz Aerodynamic Loads Database (NALD) (http://aerodata.ce.nd.edu) introduced in 2000 has served an important first step in establishing an on-line experimental archive of high frequency base balance (HFBB) data for use in the preliminary design of high-rise buildings subjected to wind loads. As a result, NALD was recently introduced in the Commentary of ASCE 7-05 (C6.5.8) as an alternative means of assessing the dynamic wind load effects on high-rise buildings. This paper presents NALD v. 2.0, integrating the latest advances in data management and mining for interactive queries of aerodynamic load data and an integrated on-line analysis framework for determining the resulting base moments and equivalent static wind loads (ESWL) for survivability and accelerations for serviceability (habitability). The key feature of NALD v. 2.0 is the flexibility it's analysis module offers: users may select not only the data from the on-line NatHaz aerodynamic loads database, but also may implement any arbitrary power spectral density (PSD) expression or wind tunnel-derived PSD data set for the evaluation of

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“…The High Frequency Pressure Integration (HFPI) method is widely adopted to determine the overall wind-induced response with the development of the synchronous pressure measurement technique [Steckley et al (1992), Cermak (2003)]. The traditional ways to predict the response is usually based on the complete quadratic combination (CQC) method.…”

Section: Introductionmentioning

confidence: 99%

Applications of Generalized Coordinate Synthesis Method in Wind Engineering

Chen¹,

Fu²,

Jihong³

et al. 2013

Proceedings of the Eighth Asia-Pacific Conference on Wind Engineering

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Generalized Coordinates Synthesis (GCS) method is a convenient approach to predict wind-induced responses of buildings and structures based on the wind pressure time histories obtained by wind tunnel tests. Unlike traditional ways in frequency domain, GCS method calculates the wind-induced responses in time domain. The wind pressure time histories are firstly transformed into modal forces by matrix multiplication and consequently the single-degree-of-freedom generalized coordinate equations are solved readily by Fast Fourier Transform in frequency domain. Finally the responses can be obtained by the mode superposition. GCS method generally takes less than 10% of time consuming of traditional methods while the results are mathematically equivalent with them. In addition, further applications can be developed easily since the time histories of modal forces have been explicitly given using GCS.

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The use of integrated pressures to determine overall wind- induced response

Cited by 24 publications

References 1 publication

Wind Tunnel Measurement Systems for Unsteady Aerodynamic Forces on Bluff Bodies: Review and New Perspective

Wind Tunnel Measurement Systems for Unsteady Aerodynamic Forces on Bluff Bodies: Review and New Perspective

e-Analysis of High-Rise Buildings Subjected to Wind Loads

Applications of Generalized Coordinate Synthesis Method in Wind Engineering

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