Research on the wind-induced vibration response of adhesive integral-lift scaffold

2015 ◽  
pp. 887-891
Author(s):  
Weimin Pan ◽  
Ningning Kong ◽  
Xin Ye ◽  
Guohua Li
Keyword(s):  
Vibration Response ◽  
Wind Induced Vibration ◽  
Wind Induced Vibration Response

scholarly journals Wind-Induced Vibration Response of an Inspection Vehicle for Main Cables Based on Computer Simulation

2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Lu Zhang ◽  
Shaohua Wang ◽  
Peng Guo ◽  
Qunsheng Wang
Keyword(s):  
Finite Element ◽  
Wind Speed ◽  
Ride Comfort ◽  
Suspension Bridge ◽  
Vibration Response ◽  
Fe Model ◽  
Main Cable ◽  
Main Cables ◽  
Wind Induced Vibration ◽  
Wind Induced Vibration Response

This paper presents a simulation approach based on the finite element method (FEM) to analyze the wind-induced vibration response of an inspection vehicle for main cables. First, two finite element (FE) models of a suspension bridge and a main cable-inspection vehicle coupled system are established using MIDAS Civil software and ANSYS software, respectively. Second, the mean wind speed distribution characteristics at a bridge site are analyzed, and the wind field is simulated based on the spectral representation method (SRM). Third, a modal analysis and a wind-induced vibration response transient analysis of the suspension bridge FE model are completed. Fourth, the vibration characteristics of the inspection vehicle are analyzed by applying fluctuating wind conditions and main cable vibration displacements in the main cable-inspection vehicle coupled FE model. Finally, based on the ISO2631-1-1997 standard, a vehicle ride comfort evaluation is performed. The results of the suspension bridge FE modal analysis are in good accordance with those of the experimental modal test. The effects of the working height, number of nonworking compressing wheels, and number of nonworking driving wheels during driving are discussed. When the average wind speed is less than 13.3 m/s, the maximum total weighted root mean square acceleration (av) is 0.1646 m/s2 and the vehicle ride comfort level is classified as “not uncomfortable.” This approach provides a foundation for the design and application of inspection vehicles.

Analysis of Wind-Induced Vibration Response for a Long-Span Double-Arch-Support Steel Structure

2014 ◽  
Vol 578-579 ◽  
pp. 313-317
Author(s):  
Lan Chen ◽  
Bo Yin ◽  
Zhi Guang Huang
Keyword(s):  
Simulation Analysis ◽  
Wind Tunnel Test ◽  
Steel Structure ◽  
Vibration Response ◽  
Natural Vibration Frequency ◽  
Long Span ◽  
Roof Structure ◽  
Arch Support ◽  
Wind Induced Vibration ◽  
Wind Induced Vibration Response

As a new long-span double-arch-support steel structure system is applied to a stadium, it is necessary to study the wind-induced vibration response of the roof structure to meet the need of design. The modal analysis and the response analyses which include static wind response and wind-induced vibration response are calculated by ANSYS. The results show that the natural vibration frequency of structure is intensive (0.93 Hz~4.2 Hz). The most unfavorable wind direction angle of 135o is selected to study the wind-induced vibration response. And the wind-induced vibration coefficient calculated is satisfactory when compared with the wind tunnel test. It can be seen that it is feasible to use the stochastic simulation analysis method of wind-induced vibration response to get the wind-induced vibration coefficient.

Wind-induced vibration response analysis of Chinese solar greenhouses

2021 ◽  
Vol 181 ◽  
pp. 105954
Author(s):  
Cong Wang ◽  
Yingchun Jiang ◽  
Xiaoye Li ◽  
Yikui Bai ◽  
Tieliang Wang
Keyword(s):  
Vibration Response ◽  
Response Analysis ◽  
Wind Induced Vibration ◽  
Wind Induced Vibration Response

scholarly journals The Wind-Induced Vibration Response for Tower Crane Based on Virtual Excitation Method

2014 ◽  
Vol 8 (1) ◽  
pp. 201-205 ◽  
Author(s):  
Hongqi Jiang ◽  
Shuncai Li
Keyword(s):  
Response Spectra ◽  
Vibration Response ◽  
Induced Response ◽  
Response Analysis ◽  
Multiple Point ◽  
Tower Crane ◽  
Virtual Excitation ◽  
Wind Induced Vibration ◽  
Wind Induced Vibration Response ◽  
Excitation Method

The dynamics of Tower Crane is complicated by wind excitation which complicates the wind-induced vibration response analysis. The random wind-induced response analysis of tower crane is presented based on finite element method and virtual excitation method. The pulsating wind loads change into multiple-point correlation stationary excitation. This paper uses Davenport’s wind speed spectrum which does not change with height, and considers multiplepoint correlation of wind-induction. The tower crane was employed as a numerical example; the response spectra and Mean Square Root (RMS) of the tower crane were obtained by wind-induced vibration. The results indicate that the vibration of the tower crane showed a greater response in low frequency with the One-third Octave acceleration RMS being lower. Finally, the influences of the wind-induced vibration on comfort were analyzed.

Dominant Modals of Wind-Induced Vibration Response for Spherical Kiewitt Cable Dome

2014 ◽  
Vol 1065-1069 ◽  
pp. 1156-1159 ◽  
Author(s):  
De Min Wei ◽  
Di Li ◽  
Ya Qing Liu
Keyword(s):  
Frequency Domain ◽  
Correlation Coefficients ◽  
Frequency Domain Analysis ◽  
Vibration Response ◽  
Induced Response ◽  
Response Analysis ◽  
Computational Results ◽  
Cable Dome ◽  
Wind Induced Vibration ◽  
Wind Induced Vibration Response

Correlation coefficients of mode shape between higher frequency modes and lower frequency modes are given. Then 17 high modes were initially selected as the dominant high modes in the analysis of wind-induced response, and cumulative mode correlation was used to judge the rationality of the method of selecting dominant high modals, so dominant modals of wind-induced response analysis are constructed. Based on these, the wind-induced vibration response of spherical Kiewitt cable dome was analyzed in frequency domain using CQC method. Through analyses of computational results, it is found that the selecting method of dominant modals by using the mode correlation coefficient can be applied in frequency domain analysis for wind-induced vibration response of cable dome structures. If the first 100 modals are considered into the analysis, the computational results obtained will be high precision.

Wind-Induced Vibration Analysis of Wind Fence Structure

2012 ◽  
Vol 226-228 ◽  
pp. 355-358
Author(s):  
Gao Feng Ma ◽  
Ting Guo Chen
Keyword(s):  
Response Spectrum ◽  
Wind Load ◽  
Vibration Response ◽  
Dust Control ◽  
Frame Structure ◽  
Frequency Domain Method ◽  
Wind Fence ◽  
Equivalent Static Wind Load ◽  
Wind Induced Vibration ◽  
Wind Induced Vibration Response

As a new wind-break and dust-control technology, the wind fence is widely used at storage yards in factories and ports. The wind fence structure is a new high-rise wind-resistant structure with light damp and very heavy wind load, and the wind-induced vibration response is unknown and equivalent static wind load is hard to determine in design. Based on the Davenport spectrum, wind-induced vibration of the plane frame structure was analyzed with frequency domain method and the response spectrum of displacement and acceleration were obtained. The equivalent static wind load was studied and the wind-induced vibration coefficient and gust loading factor were gained. The results show that the wind-induced vibration response of the structure is significant, and it should be taken into consideration in structural design.

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