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J. Cent. South Univ. (2016) 23: 220-232 DOI: 10.1007/s11771-016-3065-5 Vertical vibration of a floating pile in a saturated viscoelastic soil layer overlaying bedrock CUI Chun-yi(崔春义)1, 2, ZHANG Shi...-harmonic vibration of a floating pile in a saturated viscoelastic soil layer overlaying bedrock. The soil is described by porous medium model established by Boer, while the pile is described by a beam......
J. Cent. South Univ. (2016) 23: 1264-1272 DOI: 10.1007/s11771-016-0376-5 Effects of fundamental factors on coupled vibration of wind-rail vehicle-bridge system for long-span cable-stayed bridge... Heidelberg 2016 Abstract: In a wind-vehicle-bridge (WVB) system, there are various interactions among wind, vehicle and bridge. The mechanism for coupling vibration of wind-vehicle-bridge systems is explored......
Preparation and Properties of Epoxy Piezoelectric Vibration Reduction Composites汤重1,2,郝华2,WAN Baoquan1,CAO Minghe2,YAO Zhonghua2,LIU Hanxing21. State Key Laboratory of Power Grid Environmental... content reaches 40 wt%,the optimized vibration attenuation properties of PZT/CB/EP materials could be achieved with a loss factor of 0.9 from room temperature to 60 ℃.With the increase of PZT content......
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Trans. Nonferrous Met. Soc. China 20(2010) s763-s767 Microstructure and properties of rheo-diecast Al-20Si-2Cu-1Ni-0.4Mg alloy with direct ultrasonic vibration process WU Shu-sen (吴树森... developed direct ultrasonic vibration process (DUV process) was used in the preparation of the semi-solid slurry of this alloy. The results show that the primary Si particles in this alloy is about 20 μm......
J. Cent. South Univ. Technol. (2009) 16: 0520-0524 DOI: 10.1007/s11771-009-0086-3 Effect of cross-wind on spatial vibration responses of train and track system XIANG Jun(向 俊), HE Dan(赫 丹), ZENG... of the cross-wind and high-speed train and slab track system was proposed on the basis of the analysis theory of spatial vibration of high-speed train and slab track system. The corresponding computer......
FM458在连铸机结晶器振动中的应用高爱国,赵延军河北理工大学计控学院摘 要:针对连铸机结晶器液压振动控制实现方式的多元化,深入分析了基于FM458功能模板的液压振动控制系统,结合系统组成分析FM458功能模板在控制系统中的作用,功能,扩展特性,通讯方式,运行特性.从硬件参数和软件程序设计2个方面给出了此模板在中薄板坯连铸机结晶器液压振动的控制系统中的具体的设计和研究,合理的硬件参数系统使输入/输出时序适配进而保障系统的稳定运行;控制程序通过PI调节器实现位置闭环控制.关键词:FM458;连铸;液压vibration振动;PI;......
Self-excited vibration problems of maglev vehicle-bridge interaction systemLI Jin-hui(李金辉), LI Jie(李杰), ZHOU Dan-feng(周丹峰), YU Pei-chang(余佩倡) (College of Mechatronics Engineering and Automation, National University of Defense Technology,Changsha 410073, China)Abstract:The self-excited vibration problems of maglev vehicle-bridge interaction system were addressed, which greatly degrades......
Evaluation of vibration stress of TA11 titanium alloy blade by quantitative fractographyXin-Ling Liu1,2,3,Yuan-Ming Xu4,Chun-Hu Tao1,5,31. Beijing Institute of Aeronautical Materials, Aviation Industries of China4. School of Aeronautical Science and Engineering, Beijing University of Aeronautics and Astronautics摘 要:Vibration fatigue is the main failure......