| 利用计算结果与模态参数修正结构动力模型 |
| |
| 引用本文： | 张思,高翔.利用计算结果与模态参数修正结构动力模型[J].东南大学学报(自然科学版),1988(2). |
| |
| 作者姓名： | 张思 高翔 |
| |
| 作者单位： | 南京工学院机械工程系，南京工学院机械工程系 |
| |
| 摘 要： | 本文针对有限元动力模型提出了一个新的修正公式。该公式充分利用了有限元计算的结果和实测模态参数,只需少数几阶固有频率和振型,即可对初始理论模型进行动态修改。通过模拟计算了一个四阶系统和对一个实际结构的修正,结果证实了所提出的方法的有效性。
|
| 关 键 词： | 有限元 动力模型 模态参数 模拟计算 动态修改 |
Structural Modification of Dynamic Model Using the Result from Computation and the Modal Parameters |
| |
| Zhang Si Gao Xiang.Structural Modification of Dynamic Model Using the Result from Computation and the Modal Parameters[J].Journal of Southeast University(Natural Science Edition),1988(2). |
| |
| Authors: | Zhang Si Gao Xiang |
| |
| Institution: | Department of Mechanical Engineering |
| |
| Abstract: | In this paper a new formula for dynamic modification of finite element model is presented.In this formula both the result from finite element compu- tation and the measured modal parameter are applied fully.The use of this formula to carry out dynamic modification of the first theoretical model only needs a few of natural frequencies and modes.A system having four degrees of freedom and a practical structure are computed analogically for modifica- tion.Effectiveness is indicated from the result of this method. |
| |
| Keywords: | finite element dynamic model modal parameter analogical compute dynamic modification |
| 本文献已被 CNKI 等数据库收录！ |
