Distributed Dynamic Load in Structural Dynamics by the Impulse-Based Force Estimation Algorithm

作     者：Yuantian Qin Yucheng Zhang Vadim V.Silberschmidt 

作者机构：College of AstronauticsNanjing University of Aeronautics and AstronauticsNanjing210016China Wolfson School of MechanicalElectrical and Manufacturing EngineeringLoughborough UniversityLoughboroughLE113TUUK 

出 版 物：《Computer Modeling in Engineering & Sciences》 (工程与科学中的计算机建模（英文）)

年 卷 期：2024年第139卷第6期

页      面：2865-2891页

核心收录：

学科分类：08[工学] 081402[工学-结构工程] 081304[工学-建筑技术科学] 0813[工学-建筑学] 0814[工学-土木工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：Distributed force estimation time domain deconvolution recursion 

摘      要：This paper proposes a novel approach for identifying distributed dynamic loads in the time *** polynomial andmodal analysis,the load is transformed intomodal space for coefficient *** allows the distributed dynamic load with a two-dimensional form in terms of time and space to be simultaneously identified in the form of modal force,thereby achieving dimensionality *** Impulse-based Force Estimation Algorithm is proposed to identify dynamic loads in the time ***,the algorithm establishes a recursion scheme based on convolution integral,enabling it to identify loads with a long history and rapidly changing forms over ***,the algorithm introduces moving mean and polynomial fitting to detrend,enhancing its applicability in load *** aforementioned methodology successfully accomplishes the reconstruction of distributed,instead of centralized,dynamic loads on the continuum in the time domain by utilizing acceleration *** validate the effectiveness of the method,computational and experimental verification were conducted.