转子动力学有限元分析与测试系统开发

发布时间：2018-03-04 08:34

本文选题：转子动力学　切入点：信号处理　出处：《华东理工大学》2011年硕士论文　论文类型：学位论文

【摘要】：旋转机械在电力、能源、交通、国防和现代化等领域中有着广泛的应用,并发挥着越来越重要的作用,因此对旋转机械进行动力学特性分析和振动测试研究有着十分重要的意义。本课题开发了RotDyn转子动力学有限元分析测试软件,软件以面向对象技术的设计方法,采用C++和FORTRAN语言混合编程,在VC++6.0的环境中开发而成。软件包括转子动力学有限元计算模块与振动测试分析模块两部分。转子动力学有限元计算模块设计了前处理器、求解器、后处理器三个功能模块,完成了转子有限元模型建立,静力学分析、模态分析和动力响应分析,以及计算结果的可视化。测试分析模块设计了信号时域分析、频域分析和时频域分析三个模块,包括信号示波、轴心轨迹、幅值谱、功率谱、三维谱阵和全息谱等分析功能。本软件为基于模型的转子动力学特性和故障诊断分析提供了一套可靠而有效的分析工具。通过对比其它软件计算的结果,验证了本软件的准确性和可靠性。软件采用标准的用户界面,操作简单、方便,功能完整,实用性强。
[Abstract]:Rotating machinery is widely used in the fields of electricity, energy, transportation, national defense and modernization, and plays an increasingly important role. Therefore, it is of great significance to analyze the dynamic characteristics and test vibration of rotating machinery. In this paper, the finite element analysis and testing software of RotDyn rotor dynamics is developed, and the software is designed by object oriented technology. The software consists of two parts: rotor dynamics finite element calculation module and vibration test and analysis module. The rotor dynamics finite element calculation module designs a preprocessor and a solver. Three functional modules of the post-processor are completed, including rotor finite element model building, static analysis, modal analysis and dynamic response analysis, and visualization of calculation results. There are three modules in frequency domain analysis and time frequency domain analysis, including signal oscillogram, axis track, amplitude spectrum, power spectrum, three-dimensional spectral array and holographic spectrum. This software provides a set of reliable and effective analysis tools for rotor dynamic characteristics and fault diagnosis analysis based on model. The accuracy and reliability of the software are verified. The software adopts standard user interface, which is simple, convenient, functional and practical.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH113

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