介绍一种基于多参考点最小二乘频域法(一种工作模态法)的刚体参数识别方法。
A rigid body parameters identification method based on muhi-reference least-squares frequency domain scheme (one of the operational modal analysis techniques) is presented.
本文针对大系统的频域模型简化提出了两种方法：最小二乘近似法和有理分式近似法。
The two methods of model simplification are presented for large scale systems, they are the least square approximation and the rational fraction approximation.
分别采用最小二乘复频域法和最小二乘复指数法对某轿车白车身进行了实验模态分析并对其结果进行比较和分析。
EMA on a car body-in-white (BIW) is conducted using both PolyMAX and least squares complex exponent method (LSCE) with their results compared and analyzed.
分别采用最小二乘复频域法和最小二乘复指数法对某轿车白车身进行了实验模态分析并对其结果进行比较和分析。
EMA on a car body-in-white (BIW) is conducted using both PolyMAX and least squares complex exponent method (LSCE) with their results compared and analyzed.
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