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Wind-induced vibration control of Hefei TV tower with fluid viscous damper
Zhiqiang ZHANG , Aiqun LI , Jianping HE , Jianlei WANG ,
《结构与土木工程前沿(英文)》 2009年 第3卷 第3期 页码 249-254 doi: 10.1007/s11709-009-0038-x
关键词: high-rise structure wind-induced response fluid viscous damper vibration control
Control of wind-induced vibration of long-span bridges and tall buildings
GU Ming
《结构与土木工程前沿(英文)》 2007年 第1卷 第1期 页码 51-62 doi: 10.1007/s11709-007-0005-3
关键词: torsional buffeting large-scale semiactive adjustable frequency building aeroelastic
Time-domain and frequency-domain approaches to identification of bridge flutter derivatives
Zhengqing CHEN
《结构与土木工程前沿(英文)》 2009年 第3卷 第2期 页码 173-179 doi: 10.1007/s11709-009-0034-1
关键词: long-span bridges wind-induced vibration flutter derivatives forced vibration test time-domain method frequency-domain method
项海帆,葛耀君
《中国工程科学》 2011年 第13卷 第9期 页码 8-21
以我国30年大跨度桥梁的快速发展为研究背景,对3种大跨度桥梁的抗风技术挑战进行了基础性研究和应用性研究,着重探讨了悬索桥的颤振性能及其控制、斜拉桥风振性能与拉索风雨振控制、拱式桥涡激共振及其控制、特大桥梁风振精细化理论等一系列抗风关键问题。研究结果表明:悬索桥的颤振稳定性跨径上限约为1 500 m,超过甚至接近这一上限时,必须采取措施改善加劲梁的抗风稳定性;千米级大跨度斜拉桥仍具有足够高的颤振临界风速,其主要抗风问题是长拉索的风雨振动;大跨径拱桥除了个别有涡振问题之外,还没有受到结构抗风性能的影响。文章还提出了三维桥梁颤振精确分析的全模态方法、任意斜风作用下桥梁抖振频域分析方法、基于二阶矩理论和首次超越理论的桥梁颤振和抖振可靠性评价方法,揭示了桥梁颤振演化规律、驱动机理和控制原理。
Mean wind load induced incompatibility in nonlinear aeroelastic simulations of bridge spans
Zhitian ZHANG
《结构与土木工程前沿(英文)》 2019年 第13卷 第3期 页码 605-617 doi: 10.1007/s11709-018-0499-x
关键词: bridge aerodynamics nonlinear aeroelastic model Pseudo-steady mean wind loads
Aerodynamic impact of train-induced wind on a moving motor-van
Jiajun HE; Huoyue XIANG; Yongle LI; Bin HAN
《结构与土木工程前沿(英文)》 2022年 第16卷 第7期 页码 909-927 doi: 10.1007/s11709-022-0833-1
关键词: rail-cum-road bridge aerodynamic impact train-induced wind CFD aerodynamic force quantitative analysis fitting
Effect of friction coefficients on the dynamic response of gear systems
Lingli JIANG, Zhenyong DENG, Fengshou GU, Andrew D. BALL, Xuejun LI
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 397-405 doi: 10.1007/s11465-017-0415-4
The inevitable deterioration of the lubrication conditions in a gearbox in service can change the tribological properties of the meshing teeth. In turn, such changes can significantly affect the dynamic responses and running status of gear systems. This paper investigates such an effect by utilizing virtual prototype technology to model and simulate the dynamics of a wind turbine gearbox system. The change in the lubrication conditions is modeled by the changes in the friction coefficients, thereby indicating that poor lubrication causes not only increased frictional losses but also significant changes in the dynamic responses. These results are further demonstrated by the mean and root mean square values calculated by the simulated responses under different friction coefficients. In addition, the spectrum exhibits significant changes in the first, second, and third harmonics of the meshing components. The findings and simulation method of this study provide theoretical bases for the development of accurate diagnostic techniques.
关键词: dynamic response friction coefficient wind loads wind turbine gearbox
日本桥梁和建筑结构监测的研究与实施综述 Review
Yozo Fujino, Dionysius M. Siringoringo, Yoshiki Ikeda, Tomonori Nagayama, Tsukasa Mizutani
《工程(英文)》 2019年 第5卷 第6期 页码 1093-1119 doi: 10.1016/j.eng.2019.09.006
本文对日本建筑结构监测技术的发展进行了综述,重点介绍了监测系统的类型、策略和开发利用。本文主要对基于振动技术的桥梁和建筑结构进行了介绍。日本的建筑结构监测系统历来都是以评估建筑结构对极端事件的响应程度为目标的。在建筑结构监测技术的开发中,监测系统和所收集到的数据被用来验证设计假设、更新技术参数并优化振动控制系统的性能。本文对大跨度桥梁和高层建筑的设计验证、建筑物和桥梁的隔震系统性能、建筑结构改造和加固验证、结构控制系统验证(被动式、半主动式和主动式)、结构评估和损伤检测进行了研究。近年来,监测系统的应用范围被逐步扩大,监测数据的充分利用使得风险和资产管理趋于合理化,从而进一步提升了监测系统的高效运作和有效维护。本文还从对日本桥梁和建筑结构监测案例研究中总结了一些经验教训和反馈意见。
Dynamic response of a long span suspension bridge and running safety of a train under wind action
GUO Weiwei, XIA He, XU You-lin
《结构与土木工程前沿(英文)》 2007年 第1卷 第1期 页码 71-79 doi: 10.1007/s11709-007-0007-1
Effects of elastic support on the dynamic behaviors of the wind turbine drive train
Shuaishuai WANG, Caichao ZHU, Chaosheng SONG, Huali HAN
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 348-356 doi: 10.1007/s11465-017-0420-7
The reliability and service life of wind turbines are influenced by the complex loading applied on the hub, especially amidst a poor external wind environment. A three-point elastic support, which includes the main bearing and two torque arms, was considered in this study. Based on the flexibilities of the planet carrier and the housing, a coupled dynamic model was developed for a wind turbine drive train. Then, the dynamic behaviors of the drive train for different elastic support parameters were computed and analyzed. Frequency response functions were used to examine how different elastic support parameters influence the dynamic behaviors of the drive train. Results showed that the elastic support parameters considerably influenced the dynamic behaviors of the wind turbine drive train. A large support stiffness of the torque arms decreased the dynamic response of the planet carrier and the main bearing, whereas a large support stiffness of the main bearing decreased the dynamic response of planet carrier while increasing that of the main bearing. The findings of this study provide the foundation for optimizing the elastic support stiffness of the wind turbine drive train.
关键词: wind turbine drive train elastic support dynamic behavior frequency response function
Tian ZHANG, He XIA, Weiwei GUO
《结构与土木工程前沿(英文)》 2018年 第12卷 第4期 页码 558-567 doi: 10.1007/s11709-017-0455-1
关键词: wind barrier sudden change of wind load dynamic response running safety comfort
《能源前沿(英文)》 2022年 第16卷 第6期 页码 943-955 doi: 10.1007/s11708-021-0793-5
关键词: weak grids voltage source (VS) control wind turbine (WT) stabilization control wind farm inertial response
Linjia BAI, Yunfeng ZHANG
《结构与土木工程前沿(英文)》 2012年 第6卷 第3期 页码 199-209 doi: 10.1007/s11709-012-0168-4
关键词: collapse dynamic response fragility analysis Monte Carlo simulation wind load
Comparison and harmonization of building wind loading codes among the Asia-Pacific Economies
Yaojun GE, Shuyang CAO, Xinyang JIN
《结构与土木工程前沿(英文)》 2013年 第7卷 第4期 页码 402-410 doi: 10.1007/s11709-013-0230-x
关键词: wind loading codification velocity pressure exposure factor pressure coefficient gust response factor
标题 作者 时间 类型 操作
Wind-induced vibration control of Hefei TV tower with fluid viscous damper
Zhiqiang ZHANG , Aiqun LI , Jianping HE , Jianlei WANG ,
期刊论文
Time-domain and frequency-domain approaches to identification of bridge flutter derivatives
Zhengqing CHEN
期刊论文
Mean wind load induced incompatibility in nonlinear aeroelastic simulations of bridge spans
Zhitian ZHANG
期刊论文
Aerodynamic impact of train-induced wind on a moving motor-van
Jiajun HE; Huoyue XIANG; Yongle LI; Bin HAN
期刊论文
Effect of friction coefficients on the dynamic response of gear systems
Lingli JIANG, Zhenyong DENG, Fengshou GU, Andrew D. BALL, Xuejun LI
期刊论文
日本桥梁和建筑结构监测的研究与实施综述
Yozo Fujino, Dionysius M. Siringoringo, Yoshiki Ikeda, Tomonori Nagayama, Tsukasa Mizutani
期刊论文
Dynamic response of a long span suspension bridge and running safety of a train under wind action
GUO Weiwei, XIA He, XU You-lin
期刊论文
Effects of elastic support on the dynamic behaviors of the wind turbine drive train
Shuaishuai WANG, Caichao ZHU, Chaosheng SONG, Huali HAN
期刊论文
Analysis on running safety of train on the bridge considering sudden change of wind load caused by wind
Tian ZHANG, He XIA, Weiwei GUO
期刊论文
Analysis and stabilization control of a voltage source controlled wind farm under weak grid conditions
期刊论文
Collapse fragility assessment of steel roof framings with force limiting devices under transient wind
Linjia BAI, Yunfeng ZHANG
期刊论文