Improvement in model reduction schemes using the system equivalent reduction expansion process
Improvement in model reduction schemes using the system equivalent reduction expansion process
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DOI：
10.2514/3.13383
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发表时间：
1996-10
期刊：
影响因子：
2.5
通讯作者：
M. Papadopoulos;Ephrahim Garcia
中科院分区：
文献类型：
--
作者：
M. Papadopoulos;Ephrahim Garcia
SEREP产生精确的简化模型。然而，这种方法需要完整的系统特征向量的知识。提出了一种仅利用简化系统的模态振型的方法。简化的系统振型可以从任何简化过程获得，例如包括Guyan。悬臂欧拉-伯努利梁的模拟结果验证了该技术。结果表明，只要选择合适的主自由度，该方法是对Guyan法和IRS法的改进
The SEREP produces an exact reduced model. However, this method requires knowledge of the full system eigenvectors. An extension of this method was presented that uses only the mode shapes of a reduced system. The reduced system mode shapes can be obtained from any reduction procedure, including Guyan, for example. Results from a simulation of a cantilevered Euler Bernoulli beam validated the technique. It was shown that the method improved upon the Guyan and the IRS reduction methods provided that a proper set of master DOF were chosen