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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
Evaluation of a developed bypass viscous damper performance
Mahrad FAHIMINIA, Aydin SHISHEGARAN
《结构与土木工程前沿(英文)》 2020年 第14卷 第3期 页码 773-791 doi: 10.1007/s11709-020-0627-2
关键词: developed viscous damper external orifice energy dissipation seismic behavior CFD model of viscous damper a simplified model
Seismic performance of steel MRF building with nonlinear viscous dampers
Baiping DONG,James M. RICLES,Richard SAUSE
《结构与土木工程前沿(英文)》 2016年 第10卷 第3期 页码 254-271 doi: 10.1007/s11709-016-0348-8
关键词: seismic response steel MRF nonlinear viscous damper design basis earthquake real-time hybrid simulation
Combined static mixers for high viscous fluids mixing
Zhenhao XI, Weizhen SUN, Ling ZHAO, Zhaoyan LIU
《化学科学与工程前沿(英文)》 2009年 第3卷 第1期 页码 93-96 doi: 10.1007/s11705-009-0112-x
关键词: static mixer Cross-over-Disc pressure drop mixing performance high viscous fluid
Vibration control of a structure using Magneto-Rheological grease damper
Shinya SUGIYAMA, Tomoki SAKURAI, Shin MORISHITA
《机械工程前沿(英文)》 2013年 第8卷 第3期 页码 261-267 doi: 10.1007/s11465-013-0268-4
This paper describes an application study of Magneto-Rheological (MR) grease damper to a structure with three stories. MR fluid is known as one of successful smart materials whose rheological properties can be varied by magnetic field strength, and has been applied to various kinds of device such as dampers, clutches, engine mounts, etc. However, ferromagnetic particles dispersed in MR fluid settle out of the suspension after a certain interval due to the density difference between the particles and their career fluid. To overcome this defect, we have developed a new type of controllable working fluid using grease as the career of magnetic particles. Network of thickener in grease is expected to hold the magnetic particles and prevent them from settled down. No or little sedimentation was observed in MR grease whose characteristics could be controlled by the magnetic field strength. MR grease was introduced into a cylindrical damper and its performance was studied. As a result, it was confirmed that the damping force of MR grease damper could be controlled by the applied electric current to the coil in the cylinder of damper. Furthermore, vibration response of a three-story model structure equipped with MR grease damper was investigated experimentally, and it was shown that MR grease damper worked effectively as a semi-active damper.
关键词: vibration control damper smart material Magneto-Rheological (MR) grease MR fluid
张凤久,姜伟,孙福街,周守为
《中国工程科学》 2011年 第13卷 第5期 页码 28-33
在深入分析海上稠油聚合物驱提高采收率的难点与挑战的基础上,通过近10年的攻关和矿场试验,研制出适合海上稠油油藏条件的驱替液技术、平台聚合物配注技术、海上稠油含聚采出液处理技术及早期注聚效果评价等一系列技术,初步形成了海上油田聚合物驱油技术体系,并在渤海绥中36-1、旅大10-1及锦州9-3等3个油田进行了不同规模的现场试验,取得了明显的增油降水效果。证明了聚合物驱提高采收率技术在海上稠油油田应用的技术可行性和经济有效性,为海上油田高效开发探索出了一条崭新的道路,具有广阔的应用前景。
Chunji YAN, Maozhao XIE,
《能源前沿(英文)》 2010年 第4卷 第2期 页码 198-204 doi: 10.1007/s11708-009-0054-5
关键词: liquid jet dominant wave number compressibility instability
Min-Ho CHEY, Jae-Ung KIM
《结构与土木工程前沿(英文)》 2012年 第6卷 第3期 页码 267-280 doi: 10.1007/s11709-012-0170-x
关键词: tuned mass damper parametric optimization passive control white noise earthquake excitation
王立智,王云龙
《中国工程科学》 2012年 第14卷 第4期 页码 88-94
为了探索高粘稀油油藏降低储层原油粘度、提高渗流能力、增加流度,进一步研究区块加密后提高采收率的新技术、新方法,2006—2008年开展了“蒸汽驱油现场先导试验”。针对油藏原油粘度高、渗透率低、粘土含量高、有效厚度小等特点,开展了室内物模实验,进行了蒸汽驱油可行性研究;应用数值模拟技术优选了注汽参数和驱替方式;开展了地层防膨预处理和井筒隔热技术研究。现场试验3个井组,累积增油1.81×104 t。通过试验研究,给出了低渗高粘稀油油藏适合蒸汽驱油技术的地质条件。
Hysteretic behavior of cambered surface steel tube damper: Theoretical and experimental research
《结构与土木工程前沿(英文)》 2023年 第17卷 第4期 页码 606-624 doi: 10.1007/s11709-023-0925-6
关键词: cambered surface steel tube damper energy dissipation capacity finite element model hysteretic performance parametric study
Effect of magneto rheological damper on tool vibration during hard turning
P. Sam PAUL, A. S. VARADARAJAN
《机械工程前沿(英文)》 2012年 第7卷 第4期 页码 410-416 doi: 10.1007/s11465-012-0341-4
Recently, the concept of hard turning has gained considerable attention in metal cutting as it can apparently replace the traditional process cycle of turning, heat treating, and finish grinding for assembly of hard wear resistant steel parts. The present investigation aims at developing a magneto rheological (MR) fluid damper for suppressing tool vibration and promoting better cutting performance during hard turning. The magneto rheological Fluid acts as a viscoelastic spring with non-linear vibration characteristics that are controlled by the composition of the magneto rheological fluid, the shape of the plunger and the electric parameters of the magnetizing field. Cutting experiments were conducted to arrive at a set of electrical, compositional and shape parameters that can suppress tool vibration and promote better cutting performance during turning of AISI 4340 steel of 46 HRC with minimal fluid application using hard metal insert with sculptured rake face. It was observed that the use of MR fluid damper reduces tool vibration and improves the cutting performance effectively. Also commercialization of this idea holds promise to the metal cutting industry.
关键词: tool vibration magneto rheological damper hard turning surface finish tool wear
Danxia ZHAO, Changrong LIAO, Qiong LIU, Jing LUO
《机械工程前沿(英文)》 2011年 第6卷 第3期 页码 312-317 doi: 10.1007/s11465-011-0235-x
In this paper, a small displacement-type magnetorheological grease (MRG) damper based on disk squeeze mode is proposed. The squeeze flow differential equation is obtained. The Navier slip condition is considered on the surfaces and the boundary compatible condition is established. The radial velocity profiles and the radial pressure distributions are derived respectively, and the mathematical stress expression is calculated. To verify rationality of analytical method, the MRG damper is designed and fabricated according to the technical requirements of an engine vibration isolation system. The experimental damping force from MTS870 Electro-hydraulic Servo with sine wave excitation shows that the proposed analytical method is feasible and provides the reference value for designing MRG damper based on disk squeeze mode.
Danhui DAN, Qianqing WANG, Jiongxin GONG
《结构与土木工程前沿(英文)》 2021年 第15卷 第1期 页码 244-252 doi: 10.1007/s11709-021-0696-x
关键词: granular material vibration control discrete element method particle damper cable vibration
Review of the LNG intermediate fluid vaporizer and its heat transfer characteristics
《能源前沿(英文)》 2022年 第16卷 第3期 页码 429-444 doi: 10.1007/s11708-021-0747-y
关键词: intermediate fluid vaporizer design of structure and intermediate fluid condensation heat transfer
Review of fluid and control technology of hydraulic wind turbines
Maolin CAI, Yixuan WANG, Zongxia JIAO, Yan SHI
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 312-320 doi: 10.1007/s11465-017-0433-2
This study examines the development of the fluid and control technology of hydraulic wind turbines. The current state of hydraulic wind turbines as a new technology is described, and its basic fluid model and typical control method are expounded by comparing various study results. Finally, the advantages of hydraulic wind turbines are enumerated. Hydraulic wind turbines are expected to become the main development direction of wind turbines.
关键词: wind turbine hydraulic system fluid model control technology
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
Evaluation of a developed bypass viscous damper performance
Mahrad FAHIMINIA, Aydin SHISHEGARAN
期刊论文
Seismic performance of steel MRF building with nonlinear viscous dampers
Baiping DONG,James M. RICLES,Richard SAUSE
期刊论文
Combined static mixers for high viscous fluids mixing
Zhenhao XI, Weizhen SUN, Ling ZHAO, Zhaoyan LIU
期刊论文
Vibration control of a structure using Magneto-Rheological grease damper
Shinya SUGIYAMA, Tomoki SAKURAI, Shin MORISHITA
期刊论文
Stability of an annular viscous liquid jet in compressible gases with different properties inside and
Chunji YAN, Maozhao XIE,
期刊论文
Parametric control of structural responses using an optimal passive tuned mass damper under stationary
Min-Ho CHEY, Jae-Ung KIM
期刊论文
Hysteretic behavior of cambered surface steel tube damper: Theoretical and experimental research
期刊论文
Effect of magneto rheological damper on tool vibration during hard turning
P. Sam PAUL, A. S. VARADARAJAN
期刊论文
Analytical study on damping performances of magnetorheological grease damper based on disk squeeze mode
Danxia ZHAO, Changrong LIAO, Qiong LIU, Jing LUO
期刊论文
Application of coupled multi-body dynamics–discrete element method for optimization of particle damper
Danhui DAN, Qianqing WANG, Jiongxin GONG
期刊论文