摘要
半主动振动控制系统能较好地克服被动控制和主动控制的缺点,利用智能材料作为结构振动控制的驱动器是土木工程结构振动控制研究的热点问题。应用智能材料对结构振动进行半主动控制可以有效地减少控制过程中所需的外部能量,通过有效地布置半主动控制的驱动元件和合理地确定振动控制算法,能更好地实现对结构振动的有效控制,从而减少地震、强风等自然灾害对建筑物的损害。同时,半主动控制技术的研究也能更好地促使新型智能材料得到广泛的应用。从智能材料的主要物理力学性能、恢复力、外界影响因素等出发,分别综述了电/磁流变流体、磁致伸缩材料、压电材料、形状记忆合金材料、磁控形状记忆材料的应用研究进展,分析了目前存在的主要问题。
Semi-active control of structural vibration can effectively overcome the shortcomings of an active control system or a passive control system, when the actuator is made of intelligent materials. Semi-active control using intelligent materials can effectively reduce external energy. Through effective arrangement of semi-active control driving components and reasonable choice of the vibration control algorithm, structural vibration control can be more effective, so, damage of buildings caused by earthquake, strong winds can be effectively avoided. The semi-active control technology also can better promote a wide application of new intelligent materials. This paper analyzes the main physical and mechanical features, resilience, external influencing factors of intelligent materials, and the research progress in application fields, such as electrical/ magnetorheological fluid, magnetostrictive materials, piezoelectric materials, shape memory alloy material, magnetic shape memory alloy materials.
出处
《科技导报》
CAS
CSCD
北大核心
2009年第12期93-97,共5页
Science & Technology Review
基金
国家自然科学基金重大研究计划培育项目(90715003)
教育部高等学校博士点基金项目(20050703004)
陕西省自然科学基金项目(2007E205)
陕西工业攻关项目(2008K07-31)
关键词
结构振动
智能材料
驱动器
structural vibration
intelligent material
actuator
