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美高美官网:【海外教授主讲课程】“结构振动主动控制理论”开课通知

发布时间:2019-12-10  发布作者:  点击数:

课程简介(Abstract

当前结构设计的趋势,特别是桥梁和超高层建筑,使它们变得纤细和轻柔。因此,它们对风和地震的响应特别需要衰减,以防止疲劳和灾难性的破坏。这种激励的宽频带特性不同于交通或机械诱导的激励,被动控制措施是不够的,因为它们对控制这样激励引发振动的能力有限,因此,需要考虑主动控制。本课程为主动控制器的设计提供基础性理论,着重介绍适用于多输入多输出系统的现代控制技术,并将讲授极点配置设计以及使用状态/输出反馈的最优控制器设计。课程还将涉及作动器动力学(这需要用在控制回路中),以及它们的位置(和传感器的位置)对于有效控制的重要性。课程还将讲述对时滞和模态截断的处理。课程还将介绍主讲人和他在印度理工学院研究小组关于地震和风振控制的最新研究成果。

Current trends in design of structures, especially bridges and super tall buildings, have rendered them slender and quite flexible. Hence, their responses to wind and seismic excitations in particular need attenuation in order to prevent fatigue and catastrophic failure. The broadband nature of such excitations is unlike traffic or machinery induced excitation. Passive control measures are thus insufficient due to their limited ability to control vibration in the presence of such excitation. Hence active control need to be considered. The course provides a basis for research in active controller design methods, by focussing on modern control techniques which are suitable for multi-input multi-output systems, as in the present case. Pole placement design, and optimal controller designs using state/output feedback will be taught. Actuator dynamics (which needs to be in the control loop) will be discussed, as will the importance of their placement (and that of sensors) for efficient control. Practical considerations arising out of time-delay and modal truncation will be addressed. Recent studies on seismic and wind induced vibration control, considered by the instructor and his research group at IITB, will be presented.

 

 

Naresh K. Chandiramani教授简介(Short Bio Sketch

Chandiramani教授在印度德里理工学院完成土木工程学士学位,在美国弗吉尼亚理工大学完成工程力学硕士和博士学位。他曾是印度理工学院古瓦哈蒂分校机械工程系的一名教师(1995-2005),自2005年以来,他一直在印度理工学院孟买分校土木工程系任教。他的研究领域为计算力学、动力学和控制。主要从事复合材料板颤振和刀具颤振的非线性动力学研究;旋转复合梁的压电辅助机械热致振动控制;列车车厢的稳定性和铁路货车摩擦楔块阻尼减振;利用磁流变阻尼器进行建筑物减震的最优控制器设计,和利用变刚度/摆锤装置进行建筑物风振控制的最优控制器设计。目前研究的课题为斜拉桥风振控制以及桥梁流固耦合气弹问题的研究。他在同行评议的国际期刊上发表了大约30篇高质量学术论文,在国际会议上也发表了相当数量的论文。

Prof. Chandiramani completed his BTech in Civil Engineering from IIT Delhi, India, and MS and PhD from Virginia Tech., USA, in Engineering Mechanics. He was a faculty in Mechanical Engineering at IIT Guwahati (1995-2005), and is presently a faculty in Civil Engineering at IIT Bombay since 2005. His area of research is computational mechanics, and dynamics & control. His research has been on nonlinear dynamics of fluttering composite panels and cutting tool chatter; piezo aided mechano-thermal induced vibration control of rotating composite beams; hunting stability of railcars, and friction wedge damping for railway freight cars; optimal controller design using Magnetorheological dampers for seismically excited buildings, and variable stiffness/pendulum devices for wind excited buildings. Presently he works on wind induced vibration control of cable supported bridges and study of bridge aeroelasticity as a fluid-structure interaction problem. He has around 30 publications in peer reviewed international journals and a comparable number in international conferences.

课程安排 (Course Arrangement)

日期

Date

时间

Time

地点

Venue

主题

Topics

1224

Dec   24

9:00am~11:35am

研楼B102

B102,   Building of Graduate School

现代控制基础与最优控制

Modern   Control Basics & Optimal Control

2:30pm~4:10pm

研楼B102

B102,   Building of Graduate School

1225

Dec   25

9:00am~11:35am

研楼B102

B102,   Building of Graduate School

最优控制与作动器动力学;

半主动控制与主动控制

Optimal Control & Actuator Dynamics Semi-active   Control & Active Control

2:30pm~4:10pm

研楼B102

B102,   Building of Graduate School

1226

Dec   26

9:00am~10:40am

研楼B102

B102,   Building of Graduate School

主动控制与主动控制结构的优化

Active control & Optimization of   Actively Controlled Structures

 

国内联系老师(Contacts

华旭刚(联系方式Email:cexghua@hnu.edu.cn

封周权(联系方式Email:zqfeng@hnu.edu.cn

欢迎全体在校的土木工程专业硕士研究生及博士研究生前往学习交流。

本课程替换研究生课程《工程抗风设计》和《桥梁风致振动与控制理论》的部分学分,请培养计划中选修了A1601032M,A1601023D ,B1601035M,C1801028M的同学按时听课。

 

Xugang Hua (Email:cexghua@hnu.edu.cn)

Zhouquan Feng (Email:zqfeng@hnu.edu.cn)

All master and doctoral students in civil engineering are welcome to attend this course.

This course replaces part of the credits of the graduate courses "engineering wind-resistant design" and "Wind-induced vibration of bridges and its control ". Please attend the class on time if you have selected the courses A1601032M, A1601023D, B1601035M and C1801028M in the training program.

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