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直接分支模态综合法
相关语句
  direct component modal synthesis method
     Improved direct component modal synthesis method
     改进的直接分支模态综合法
短句来源
     Mixed Interface Direct Component Modal Synthesis Method
     混合界面直接分支模态综合法
短句来源
     The direct component modal synthesis method was introduced and tested, the very low accuracy of which was explained.
     介绍了直接分支模态综合法的基本原理并通过算例对算法进行验算,分析了该方法计算结果很不准确的原因并进行了改进。
短句来源
     A new method called Mixed Interface Direct Component Modal Synthesis Method is proposed. The method is developed on the basis of DCMS (Direct Component Modal Synthesis Method) which is essentially a free interface modal synthesis method.
     在直接分支模态综合法(本质上属自由界面模态综合法)的基础上,提出并深入研究了混合界面直接分支模态综合法
短句来源
  相似匹配句对
     Improved direct component modal synthesis method
     改进的直接分支模态综合
短句来源
     Mixed Interface Direct Component Modal Synthesis Method
     混合界面直接分支模态综合
短句来源
     An Improved Method of Direct Component Modal Synthesis Technique for Structure Dynamic Analysis
     改进的直接部件模态综合
短句来源
     The improvements on the fixed-interface modal synthesis method
     约束模态综合的改进措施
短句来源
     Component Mode Synthesis Methods under the Elastic-connecting Condition
     弹性联接模态综合
短句来源
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The direct component modal synthesis method was introduced and tested, the very low accuracy of which was explained. An improved method was developed to lower the error arising from the neglect of the higherorder modes by adding the remaining modes of the main substructure. The results calculated by the improved method were consistent with results obtained by ANSYS with an error of less than 2%. The improved method is not only exact but also keeps the advantages of the original method, so it is suitable for...

The direct component modal synthesis method was introduced and tested, the very low accuracy of which was explained. An improved method was developed to lower the error arising from the neglect of the higherorder modes by adding the remaining modes of the main substructure. The results calculated by the improved method were consistent with results obtained by ANSYS with an error of less than 2%. The improved method is not only exact but also keeps the advantages of the original method, so it is suitable for engineering applications.

介绍了直接分支模态综合法的基本原理并通过算例对算法进行验算,分析了该方法计算结果很不准确的原因并进行了改进。改进的分支模态法将系统中主子结构的剩余模态加入,降低了略去高阶模态带来的严重误差。计算结果与有限元软件ANSYS的计算结果吻合较好,误差小于2%。改进的方法不仅使计算结果准确,而且保持了原方法的优点,适用于工程计算。

A new method called Mixed Interface Direct Component Modal Synthesis Method is proposed. The method is developed on the basis of DCMS (Direct Component Modal Synthesis Method) which is essentially a free interface modal synthesis method. According to the proposed method, the whole structure is divided into several parts. The complex part named main substructure is considered as free-interface, and the other branch substructures as fixed-interface. The computation of each substructure is entirely independent....

A new method called Mixed Interface Direct Component Modal Synthesis Method is proposed. The method is developed on the basis of DCMS (Direct Component Modal Synthesis Method) which is essentially a free interface modal synthesis method. According to the proposed method, the whole structure is divided into several parts. The complex part named main substructure is considered as free-interface, and the other branch substructures as fixed-interface. The computation of each substructure is entirely independent. Residual modes of both main and branch substructures are taken into account to improve the accuracy. The numerical examples confirm the validity, especially for an outer case-pipeline system of aero engine.

直接分支模态综合法(本质上属自由界面模态综合法)的基础上,提出并深入研究了混合界面直接分支模态综合法。混合界面法将复杂庞大的结构取做主体部件,而将与此主体部件相连的其余部分视为分支部件。对主体部件采用自由界面,分支部件则采用固定界面。各子结构之间完全独立计算,并且通过计入主、从子结构的剩余模态矩阵的办法来补偿所舍去的高阶模态分量,保证了计算精度。本方法从工程应用的实际出发,通过模拟航空发动机机匣管路系统的数值算例,验证了混合界面法的正确性。

 
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