新型SMA复合悬摆减震系统对小雁塔减震控制分析  

Analysis of SMA-SPDS vibration control for the Small Wild Goose Pagoda

作　　者：董朕 王社良[1] 苏三庆[1] 杨涛[1] 展猛 DONG Zhen;WANG Sheliang;SU Sanqing;YANG Tao;ZHAN Meng(School of Civil Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China)

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《哈尔滨工程大学学报》2018年第4期695-702,共8页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(51678480);陕西省科技统筹创新计划(2013SZS01-Z02;-K01);陕西省工业攻关项目(2014K06-34)

摘　　要：为了对现存的古塔建筑进行有效地抗震保护,根据悬摆减震原理,结合形状记忆合金,设计并制作了一种新型形状记忆合金复合悬摆减震系统(shape memory alloy-suspension pendulum damping system,SMA-SPDS),并对该减震系统进行了动力测试。采用有限元软件ANSYS建立小雁塔模型结构减震控制模型,并将模拟分析值同试验结果作对比,验证减震控制模型的可靠性,同时,将该控制方法进一步应用于小雁塔原型结构。结果表明:本文研发的SMA-SPDS频率和阻尼均可调可控,系统性能稳定,减震效果明显;小雁塔模型结构减震控制模拟计算值与试验值基本吻合;随着控制模态阶次的提高,需要SMA-SPDS的数量增加,对小雁塔结构的控制效果也明显提高。To enable anti-seismic protection of existing ancient pagodas,a new shape memory alloy-suspension pendulum damping system(SMA-SPDS)is designed and manufactured based on suspension pendulum damping theory and a shape memory alloy.The system is then examined using dynamic tests.To verify reliability of the vibration control model,the finite element software ANSYS is used to establish a vibration control model for the model structure of the Small Wild Goose Pagoda,and simulation analysis values are compared with experimental results.In addition,the vibration control method is further employed with a prototype structure of the Small Wild Goose Pagoda.Results show that frequency and damping of the SMA-SPD are both adjustable and controllable;the system performance is stable,and the damping effect is obvious.Furthermore,simulative calculation values are basically consistent with experimental results.Therefore,by improving the controlling mode order,quantity demands for SMA-SPDS will increase,and the controlled effect for the Small Wild Goose Pagoda structure will also be visibly improved.

关 键 词：小雁塔 形状记忆合金 悬摆减震系统 ANSYS 优化设计 振动台试验 

分 类 号：TU362[建筑科学—结构工程]