大型结构应变模态分析软件的应用研究

Research on Software of Modal Analysis for Large Structure

尝试用时域应变模态参数识别法对大型结构系统进行试验研究，研制了大型结构系统应变模态分析软件，利用这一软件对港口门座起重机象鼻梁结构的模态参数（包括固有频率、模态阻尼比及模态振型）进行了有效的识别，从而探索出一种适用于大型结构系统应变模态参数识别的行之有效的方法。

This paper carries out an experimental modal analysis software in order to identify the structural modal parameters. By using this software, the modal parameters of the rigid beam of the port portal crane is identified and an effective method suit to the modal parameters identification of the large structural is explored.