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电网技术  2010 

线性模态分析中的参与因子与贡献因子

, PP. 92-96

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Abstract:

深入分析了参与因子和贡献因子的概念,并指出参与因子实质上是特征值灵敏度概念。参与因子只与系统结构特性有关,而与扰动特性无关;而贡献因子不仅与系统结构有关,还与扰动有关。分析了机电相关比、参与因子和特征值灵敏度的关系。通过对比时域响应Prony分析结果、参与因子和贡献因子三者描述各模态的幅值相对大小,验证了在实际扰动情况下参与因子和贡献因子的不同。这为实际工程准确应用这2个物理概念奠定了基础。

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