东南大学学报（自然科学版）2026，Vol.56Issue(5)：655-663,9.DOI:10.3969/j.issn.1001-0505.2026.05.002
基于现场实测的拉线式测风塔风致振动响应及模态特性研究
Study of wind-induced vibration responses and modal characteristics of a guyed anemometer tower based on field measurement
摘要
Abstract
This study investigates the dynamic characteristics and their variation with vibration amplitude of a 110-meter-high guyed anemometer tower through integrated theoretical analysis and field measurements.Field dynamic tests were conducted to evaluate the dynamic behavior of the stay cables and determine the cable ten-sions.A finite element model of the tower was developed incorporating the measured cable forces,and the modal properties of the structure were analytically evaluated.A monitoring system was established to record structural dynamic response and wind conditions,enabling identification of the modal parameters.The results demonstrate that:Cable tension significantly influences the modal properties,with measured tensions in cables at the same height varying by up to 40%,underscoring the importance of accurate tension measurement for pre-cise modeling;The wind-induced vibration response exhibits notable multi-modal participation,and the mea-sured natural frequencies show less than 3.5%discrepancy from the finite element predictions with good agree-ment in mode shapes;Under low-amplitude vibrations,the first three natural frequencies and damping ratios in two orthogonal directions vary only slightly with the root-mean-square of acceleration response,while the modal damping ratio decreases with increasing mode order.关键词
拉线式测风塔/风致响应/实测/模态识别Key words
guyed anemometer tower/wind-induced response/field measurement/modal identification分类
建筑与水利引用本文复制引用
华旭刚,肖子渊,温青,秦志清,任臣捷..基于现场实测的拉线式测风塔风致振动响应及模态特性研究[J].东南大学学报（自然科学版）,2026,56(5):655-663,9.基金项目
国家重点研发计划重点专项资助项目(2022YFC3005300) （2022YFC3005300）
国家自然科学基金杰出青年基金资助项目(52025082). （52025082）
