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| 刚弹耦合多体系统物理参数的一种识别方法 | |
| 引用本文： | 贠来峰,芮筱亭,王公廉,唐静静,陆毓琪.刚弹耦合多体系统物理参数的一种识别方法[J].南京理工大学学报(自然科学版),2006,30(4):424-428. |
| 作者姓名： | 贠来峰 芮筱亭 王公廉 唐静静 陆毓琪 |
| 作者单位： | 1. 南京理工大学,动力工程学院,江苏,南京,210094;南京军代局,驻扬州地区军代室,江苏,扬州,225009 2. 南京理工大学,动力工程学院,江苏,南京,210094 3. 南京理工大学,机械工程学院,江苏,南京,210094 4. 南京航空航天大学,航空宇航学院,江苏,南京,210016 |
| 摘 要： | 以一个简单的刚弹耦合多体动力学系统为例，提出了一种利用系统模态参数识别系统物理参数的新方法。利用多体系统增广特征矢量的正交性条件，可建立以系统物理参数为未知数的代数方程组。给出了通过系统模态参数识别物理参数的计算步骤。算例与计算结果表明：用该方法能有效识别刚弹耦合多体系统的物理参数，具有计算精度高、计算量小、所需参数少等特点。 |
| 关 键 词： | 参数识别 多体系统 正交性 增广特征矢量 振动模态 物理参数 |
| 文章编号： | 1005-9830(2006)04-0424-05 |
| 收稿时间： | 2004-11-08 |
| 修稿时间： | 2006-04-04 |
Method for Structure Parameter Identification of Coupled Flexible-rigid Multibody System |
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| YUN Lai-feng,RUI Xiao-ting,WANG Gong-lian,TANG Jing-jing,LU Yu-qi.Method for Structure Parameter Identification of Coupled Flexible-rigid Multibody System[J].Journal of Nanjing University of Science and Technology(Nature Science),2006,30(4):424-428. | |
| Authors: | YUN Lai-feng RUI Xiao-ting WANG Gong-lian TANG Jing-jing LU Yu-qi |
| Institution: | 1.a. School of Power Engineering, b. School of Mechanical Engineering, NUST, Nanjing 210094, China; 2. Military Agency in Yangzhou Region, Yangzhou 225009, China;3. School of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
| Abstract: | Taking a simple multibody system coupled with rigid and elastic bodies for example, a new method for identifying structure parameter of coupled flexible-rigid multibody system dynamics is presented. By using the orthogonality condition of augmented eigenvector of multibody system, the algebraic equation group with unknowns of structure parameter is formed. The computational steps of identifying structure parameter from modal parameters are given. Examples and computational results show that the new method identifies the structure parameters of multibody system coupled with rigid and elastic bodies. The method has higher computational precision with limited computational work and needs less modal parameters. |
| Keywords: | parameter identification multibody system orthogonality augmented eigenvector vibration mode structure parameter |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |