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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
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
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
Seismic response reduction of a three-story building by an MR grease damper
Tomoki SAKURAI, Shin MORISHITA
《机械工程前沿(英文)》 2017年 第12卷 第2期 页码 224-233 doi: 10.1007/s11465-017-0413-6
This paper describes an application of magneto-rheological (MR) grease dampers as seismic dampers for a three-story steel structure. MR fluid is widely known as a smart material with rheological properties that can be varied by magnetic field strength. This material has been applied to various types of devices, such as dampers, clutches, and engine mounts. However, the ferromagnetic particles dispersed in MR fluid settle out of the suspension after a certain interval because of the density difference between the particles and their carrier fluid. To overcome this defect, we developed a new type of controllable working fluid using grease as the carrier of magnetic particles. MR grease was introduced into a cylindrical damper, and the seismic performance of the damper was subsequently studied via numerical analysis. The analysis results of the MR grease damper were compared with those of other seismic dampers. We confirmed that the MR grease damper is an effective seismic damper.
关键词: MR grease damper seismic damper vibration control structural response FEM analysis
Experimental research on the multilayer compartmental particle damper and its application methods on
Zhenyuan LUO, Weiming YAN, Weibing XU, Qinfei ZHENG, Baoshun WANG
《结构与土木工程前沿(英文)》 2019年 第13卷 第4期 页码 751-766 doi: 10.1007/s11709-018-0509-z
关键词: energy dissipation devices multilayer compartmental particle damper self-anchored suspension bridges shaking tables test long-period structure seismic control
Design method and verification of a hybrid prosthetic mechanism with energy-damper clutchable device
《机械工程前沿(英文)》 2021年 第16卷 第4期 页码 747-764 doi: 10.1007/s11465-021-0644-4
关键词: hybrid transfemoral prosthetic mechanism energy recycling wearable mechanical clutched device mechanical adaptive stability
Electrorheological damper for the ultra-precision air bearing stage
ZHU Yu, JIA Songtao, CHEN Yaying, LI Guang
《机械工程前沿(英文)》 2008年 第3卷 第2期 页码 158-163 doi: 10.1007/s11465-008-0031-4
关键词: post-yield linear-motor advanced sliding pre-yield position
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
张喜刚,裴岷山,袁洪,徐利平,朱斌
《中国工程科学》 2009年 第11卷 第3期 页码 20-25
苏通大桥主跨1 088m,是目前世界上最大跨径的斜拉桥。大桥桥位处建筑条件复杂,抗震和抗风要求高,选择合理的桥梁结构体系是保证结构安全和功能的关键。介绍了苏通大桥结构体系的比选过程,比较了全漂浮、黏滞阻尼器、液压缓冲器和塔梁固接4种体系,重点分析对比了不同参数下黏滞阻尼器和液压缓冲器的结构响应,首次提出了用于桥梁的带有附加限位功能的特大型液体黏滞阻尼器,对阻尼器的设计参数进行了分析研究,并在苏通大桥上实现了这一新型装置。
朱伟,马履中,陈修祥,吴伟光,谢俊
《中国工程科学》 2007年 第9卷 第11期 页码 63-67
分析了磁流变阻尼器的力学特性,将其应用于多维减振系统中。采用经典的三平移并联机构作为多维减振平台的主体机构,推导出其位置逆解公式;建立了系统动力学状态方程模型,以运动学方程得到的支路加速度作为输入信号,控制器采用了基于线性二次型最优控制理论的半主动控制算法。考虑到动态过程中机构动力学方程的复杂性,采用稳态方法对并联机构处于某一运动姿态的支路移动副振动进行控制,从而控制了整个平台的振动。仿真结果表明,所采取的控制算法有较好的控制效果。
Seismic retrofit of existing SRC frames using rocking walls and steel dampers
Akira WADA, Zhe QU, Shojiro MOTOYUI, Hiroyasu SAKATA
《结构与土木工程前沿(英文)》 2011年 第5卷 第3期 页码 259-266 doi: 10.1007/s11709-011-0114-x
关键词: building structure seismic retrofit rocking wall steel damper
Evaluation of power regeneration in primary suspension for a railway vehicle
Ruichen WANG, Zhiwei WANG
《机械工程前沿(英文)》 2020年 第15卷 第2期 页码 265-278 doi: 10.1007/s11465-019-0571-9
关键词: railway vehicle primary damper power regeneration ride comfort running safety
标题 作者 时间 类型 操作
Evaluation of a developed bypass viscous damper performance
Mahrad FAHIMINIA, Aydin SHISHEGARAN
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
Seismic response reduction of a three-story building by an MR grease damper
Tomoki SAKURAI, Shin MORISHITA
期刊论文
Experimental research on the multilayer compartmental particle damper and its application methods on
Zhenyuan LUO, Weiming YAN, Weibing XU, Qinfei ZHENG, Baoshun WANG
期刊论文
Design method and verification of a hybrid prosthetic mechanism with energy-damper clutchable device
期刊论文
Electrorheological damper for the ultra-precision air bearing stage
ZHU Yu, JIA Songtao, CHEN Yaying, LI Guang
期刊论文
Wind-induced vibration control of Hefei TV tower with fluid viscous damper
Zhiqiang ZHANG , Aiqun LI , Jianping HE , Jianlei WANG ,
期刊论文
Seismic retrofit of existing SRC frames using rocking walls and steel dampers
Akira WADA, Zhe QU, Shojiro MOTOYUI, Hiroyasu SAKATA
期刊论文