| 于晨阳,范宣华.基于模态叠加法的振动响应修正方法研究概述[J].装备环境工程,2019,16(2):90-94. YU Chen-yang,FAN Xuan-hua.Summary of Modal Superposition Method Based Correction Methods for Vibration Response[J].Equipment Environmental Engineering,2019,16(2):90-94. |
| 基于模态叠加法的振动响应修正方法研究概述 |
| Summary of Modal Superposition Method Based Correction Methods for Vibration Response |
| 投稿时间：2018-11-22 修订日期：2019-02-25 |
| DOI：10.7643/ issn.1672-9242.2019.02.019 |
| 中文关键词: 模态叠加法 模态加速度法 修正方法 大规模并行计算 |
| 英文关键词:modal superposition method mode-acceleration method correction method massively parallel processing |
| 基金项目:国家自然科学基金（11872059）；科学挑战专题项目（TZ2018002） |
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| 中文摘要: |
| 针对模态叠加法受模态选取和截断等影响，往往导致动力学计算精度不高，尤其是对高频响应难以预测这一缺点，对多个基于模态叠加的修正方法研究的现状和发展趋势进行了概述，简要分析了各个修正方法的优劣，并结合目前的大规模并行计算技术探讨了添加这些修正方法的可能性。研究表明，模态加速度法是目前相对容易实现的一种修正算法，最易于在大规模并行计算和实际工程应用中实现。 |
| 英文摘要: |
| The modal superposition method is affected by modal selection and truncation, which leads to low precision in dynamic calculation, especially for high frequency response. In response to this shortcoming of the mode superposition method, this paper summarized the research status and development trend of multiple correction methods based on the modal superposition, analyzed the advantages and disadvantages of each correction method, and discussed the possibility of adding these correction methods to massively parallel processing. Research shows that the modal acceleration method is a correction method that is easy to be implemented at present, and is most easily to be implemented in massively parallel processing and practical engineering applications. |
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