| 两类数据的转角自由度模态综合法及应用 |
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| 引用本文： | 段传学,孟光. 两类数据的转角自由度模态综合法及应用[J]. 机械强度, 2006, 28(4): 498-502 |
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| 作者姓名： | 段传学 孟光 |
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| 作者单位： | 上海交通大学,振动、冲击、噪声国家重点实验室,上海,200030;上海交通大学,振动、冲击、噪声国家重点实验室,上海,200030 |
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| 摘 要： | 提出一种利用实验测试的位移自由度数据估算所需要的转角自由度数据，并以此对实验数据模型和有限元模型进行模态综合的方法。通过对一段空调配管的例子说明文中方法在MSC．NATRAN中的应用。模态综合结果显示转角自由度的应用使模态综合的频率误差和模态振型的MAC值均有显著提高。
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| 关 键 词： | 模态综合法 转角自由度 有限元法 |
| 收稿时间： | 2004-08-10 |
| 修稿时间： | 2004-08-102004-11-27 |
STUDY ON COMPONENT MODE SYNTHESIS WITH TWO TYPE DATA OF RDOFs |
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| DUAN ChuanXue,MENG Guang. STUDY ON COMPONENT MODE SYNTHESIS WITH TWO TYPE DATA OF RDOFs[J]. Journal of Mechanical Strength, 2006, 28(4): 498-502 |
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| Authors: | DUAN ChuanXue MENG Guang |
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| Affiliation: | State Key Laboratory of Vibration, Shock and Noise, Shanghai Jiaotong University, Shanghai 200030, China |
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| Abstract: | A new component mode synthesis method is presented,with which the CMS(component mode synthesis) method can be carried out with the experimental data and the finite element(FE) data by evaluating the rotational degree of freedoms(DOFs) from the experimental translational DOFs.An example about a pipe in the piping system of an air conditioner is implemented to describe the application of the method in MSC.NASTRAN.The results indicate that the method can improve the synthesis frequencies accuracy and MACs. |
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| Keywords: | Component mode synthesis Rotational degree of freedoms Finite element merited |
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