Accuracy of the half-power bandwidth method with a third-order correction for estimating damping in

• 作 者: Wang Jinting Lü Dandan Ji
• 机 构: StateKeyLaboratoryofHydroscienceandEngineering
• 出 处: 地震工程与工程振动：英文版
• 发表日期: 2013年1期
• 关键词: 多自由度系统 半功率带宽 校正方法 阻尼比 比估计 三阶 频率响应曲线 单自由度系统 half-power bandwidth method third-ord
• 基金项目: Supported by： National Natural Science Foundation underGrant No. 51179093, National Basic Research Program ofChina under Grant No. 2011CB013602, and Program forNew Century Excellent Talents in Univers

A third-order correction was recently suggested to improve the accuracy of the half-power bandwidth method in estimating the damping of single DOF systems.This paper analyzes the accuracy of the half-power bandwidth method with the third-order correction