[1]胡乾善.振动系统模态分析的时域技术[J].东南大学学报(自然科学版),1982,12(2):1-16.[doi:10.3969/j.issn.1001-0505.1982.02.001]
 Hu Qian-shan.The Time-Domain Technique of Modal Analysis of Vibration Systems[J].Journal of Southeast University (Natural Science Edition),1982,12(2):1-16.[doi:10.3969/j.issn.1001-0505.1982.02.001]
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振动系统模态分析的时域技术()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
12
期数:
1982年第2期
页码:
1-16
栏目:
本刊信息
出版日期:
1982-06-20

文章信息/Info

Title:
The Time-Domain Technique of Modal Analysis of Vibration Systems
作者:
胡乾善
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Author(s):
Hu Qian-shan
关键词:
模态分析技术 时域技术 振动系统 随机减量 主模态 模态参数 自由响应 固有频率 密集模态 状态变量法
分类号:
+
DOI:
10.3969/j.issn.1001-0505.1982.02.001
摘要:
模态分析的时域技术是模态分析技术晚近的重要发展。它包括状态变量法,直接自由响应法(包括单站时域技术),以及随机减量图象法等内容。与习用已久的频域技术相比,它有需用的分析设备简单,模态分辨率高,能分离密集模态以及能用于结构在噪声环境中的的模态分析等重要优点。本文对这个技术的理论与实际问题作了整理与系统的介绍,井提出关于这个技术值得进一步探讨的问题。
Abstract:
The time-domain techique of modal analysis is an important recent devel-opment of modal analysis technique. It consists of the method of statevariables,the method of direct free response, including the SSTD technique,and the method of random decrement signature. As compared with the long-used frequency-domain technique, it has the important advantages of simplicity of equipments required for analysis, high resolving power useful for separating close-spaced modes, and the ability to perform good modal analysis in a noisy environment.This paper presents the theoretical and practical aspects of this new technique and discusses what is worth doing in the future.
更新日期/Last Update: 2013-05-01