Dynamic Analysis of Steel Platforms When Subjected to Mechanical Equipment-Induced Vibrations

Silva, José Guilherme S. da; Sieira, Ana Cristina Castro Fontenla; Silva, Luís A. P. Simões Da; Rimola, Bruno D.

doi:10.17265/1934-7359/2016.10.003

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…For civil engineering applications, the early prediction (and control or mitigation) of unfavorable vibration phenomena is implicitly related to the serviceability checks that should be conventionally carried out at the preliminary stage of the structural design process. In doing so, the load-bearing structure to verify must be properly characterized in the dynamic parameters [1][2][3][4][5][6][7][8]. However, the expected source of vibration needs further detailing.…”

Section: Motivationmentioning

confidence: 99%

Predictivity of CNC Machine-Induced Vibrations on Inter-Story Floors Based on Coupled Experimental-Numerical Investigations

Bedon

Bergamo

Fasan

2020

The 1st International Electronic Conference on Actuator Technology: Materials, Devices and Applications

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Machine-induced vibrations and their control represent, for several reasons, a crucial design issue for buildings, and especially for industrial facilities. A special attention is required, at the early design stage, for the structural and dynamic performance assessment of the load-bearing members, given that they should be optimally withstand potentially severe machinery operations. To this aim, however, the knowledge of the input vibration source is crucial. This paper investigates a case-study eyewear factory built in Italy during 2019 and characterized by various non-isolated computer numerical control (CNC) vertical machinery centers mounted on the inter-story floor. Accordingly, the structure started to suffer for pronounced resonance issues. Following the past experience, this paper reports on the efficiency of a coupled experimental-numerical method for generalized predictive and characterization studies. The advantage is that the machinery features are derived from on-site experiments on the equipment, as well as on the floor. The experimental outcomes are then assessed and integrated with the support of Finite Element (FE) numerical simulations, to explore the resonance performance of the floor. The predictability of marked resonance issues is thus analyzed, with respect to the reference performance indicators.

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Section: Motivationmentioning

confidence: 99%

Predictivity of CNC Machine-Induced Vibrations on Inter-Story Floors Based on Coupled Experimental-Numerical Investigations

Bedon

Bergamo

Fasan

2020

The 1st International Electronic Conference on Actuator Technology: Materials, Devices and Applications

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“…The impact of mechanical equipment (such as electrical generators and compressors) on steel structure production platform has been investigated in Guilherme et al (2016) [11], where a numerical analysis was performed to study the dynamic behavior; a steady-state analysis was conducted, where the effect of vibration on human comfort has been presented.…”

Section: Vibrationmentioning

confidence: 99%

Effectiveness of Connections Type on Vibration Response of Steel Beam

Al-Hasany¹,

Alsalmani

Al-Zaidee

2019

Civ Eng J

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In a steel structure, choosing the connections type are one of the most important parameters in design consideration. How a connection type affects the vibration of steel beams has been investigated in this paper. The most effective connection type in reducing beam vibration has been highlighted. The study was conducted using different finite element models to simulate each connection type. Firstly, the model was validated by comparing its results with the results obtained by the analytical approach. In the numerical model, a linear frequency analysis was performed to determine beam natural frequency, then it has been compared with the corresponding value obtained by the Euler-Bernoulli approximations for simply supported beams. After that, two analysis procedures have been executed, steady-state analysis and transient analysis. In the steady-state analysis, a harmonic load with different frequencies was applied to the beam mid-span, while an impulsive load has been applied in the transient analysis. The results indicate that the deflection could be reduced by 72%, furthermore steady vibration of the beam can be reduced by 81% with using one of the moment connections instead of the traditional shear connection.

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Test bench for experimental study of the geometric stiffness in vibration of beams as support of rotating machines

Wahrhaftig¹,

Brasil²,

Cordeiro³

2017

Procceedings of the 24th ABCM International Congress of Mechanicl Engineering

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Dynamic Analysis of Steel Platforms When Subjected to Mechanical Equipment-Induced Vibrations

Cited by 4 publications

References 7 publications

Predictivity of CNC Machine-Induced Vibrations on Inter-Story Floors Based on Coupled Experimental-Numerical Investigations

Predictivity of CNC Machine-Induced Vibrations on Inter-Story Floors Based on Coupled Experimental-Numerical Investigations

Effectiveness of Connections Type on Vibration Response of Steel Beam

Test bench for experimental study of the geometric stiffness in vibration of beams as support of rotating machines

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