基于线性模态叠加的T型接头谐响应分析  

Harmonic Response Analysis of T-joint Based on Linear Mode Superposition

作　　者：杜梓涛 周韶泽[1] DU Zitao;ZHOU Shaoze(College of Locomotive and Rolling Stock Engineering,Dalian Jiaotong University,Dalian 116028,China)

机构地区：[1]大连交通大学机车车辆工程学院,辽宁大连116028

出　　处：《机械制造与自动化》2025年第2期192-195,共4页Machine Building & Automation

摘　　要：针对线性模态叠加原理,对T型接头进行谐响应分析,通过线性叠加进行理论数值计算并与谐响应分析数值进行对比。对T型接头建立有限元模型,介绍结构的各个属性以及运用模态分析展示出T型接头在前4阶的固有频率以及振型云图;对T型接头进行模态叠加法的谐响应分析,从而防止共振的发生;进行理论线性模态叠加的计算,将理论与实际值进行对比,从而使模态叠加更加清晰明确。According to the principle of linear modal superposition,the harmonic response of T-joint is analyzed,and the theoretical numerical calculation is compared with the harmonic response analysis by linear superposition.The finite element model of T-joint is established to introduce the various attributes of the structure,and the natural frequency and vibration pattern of T-joint in the first four order are shown by modal analysis.The harmonic response of T-joint is analyzed by modal superposition method,so as to prevent the occurrence of resonance.The theoretical linear modal superposition is calculated,and the theoretical value is compared with the actual value.Thus,the modal superposition is better clarified and explicitated.

关 键 词：模态分析 谐波响应 模态系数 固有频率 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]