建筑结构学报2025，Vol.46Issue(12)：108-126,19.DOI:10.14006/j.jzjgxb.2025.0009
基于改进滑模控制算法的附加阻尼网斜底式主动调谐液体阻尼器减震控制理论与试验研究
Theoretical and experimental study on ADNS-TLD damping control based on improved sliding mode control algorithm
摘要
Abstract
To address the shortcomings of existing research on tuned liquid-based passive and active control devices,an active damping net and sloped-bottom tuned liquid damper(ADNS-TLD)based on an improved sliding mode control(SMC)algorithm was proposed.A theoretical mechanical model of the ADNS-TLD-SDOF controlled structural system was established by incorporating the active control force generated by a linear motor actuator and the passive control force provided by the damping-net and sloped-bottom tuned liquid damper(DNS-TLD).In order to verify the accuracy of the theoretical mechanical model and investigate the effectiveness of ADNS-TLD on the damping control of the controlled structure,three single-story steel frame structures with different natural periods of 0.83 s,0.66 s and 0.57 s were fabricated.Several improved SMC algorithms were developed,and 20 natural seismic waves under Class Ⅰ-Ⅳ sites were selected to carry out seismic simulation shaker test research.The experimental results show that the damping performance of ADNS-TLD is significantly enhanced compared to traditional passive control devices with AMD due to the introduction of active control force between the structure and DNS-TLD.The vibration damping performance of DNS-TLD can be increased by more than 40％compared to TLD.Among the improved SMC algorithms,the fuzzy sliding mode control algorithm has optimal engineering applicability due to its low energy consumption and stable performance.The mean absolute percentage error between numerical calculation and experimental results is only 4.533％,which shows a good agreement.ANDS-TLD exhibits good damping control effectiveness under seismic waves of various site categories,and the damping effect of ADNS-TLD improves with the site category.The maximum displacement reduction can reach 90％under seismic waves of category Ⅳ sites,which has good engineering application prospects.关键词
结构减震控制/调谐液体阻尼器/主动控制/滑模控制/场地类别Key words
structural damping control/tuned liquid damper/active control/sliding mode control/site category分类
建筑与水利引用本文复制引用
孙澔鼎,何浩祥,高晓建,密嘉豪..基于改进滑模控制算法的附加阻尼网斜底式主动调谐液体阻尼器减震控制理论与试验研究[J].建筑结构学报,2025,46(12):108-126,19.基金项目
国家自然科学基金项目(52378469). （52378469）
