Abstract Identification of elastic and damping properties is a challenge for fabrication of composite materials, which can have complex shapes. A new approach based on the Force Analysis Technique was developed to identify structural parameters from local equation of motion. For structures with known analytical models, this method gave good results. This work presents a similar approach to extend the previous method to structures which cannot be described with known analytical models, where the model is replaced by a Finite Element operator. In order to reduce the amplification of the measurement noise, a procedure based on a probabilistic approach coupled to a minimization of a cost function is proposed. The method is illustrated on a curved beam using simulated displacement. Then, an experimental validation is shown by using measured translations on an aluminum flat beam and on a sandwich curved beam.

中文翻译：

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夹心曲梁上使用局部动态反演法的均质牵引弯曲复合杨氏模量的实验识别

摘要 弹性和阻尼特性的识别是复合材料制造的一个挑战，复合材料可以具有复杂的形状。开发了一种基于力分析技术的新方法，用于从局部运动方程中识别结构参数。对于具有已知分析模型的结构，该方法给出了良好的结果。这项工作提出了一种类似的方法，将先前的方法扩展到无法用已知分析模型描述的结构，其中模型被有限元算子取代。为了减少测量噪声的放大，提出了一种基于与成本函数最小化耦合的概率方法的程序。该方法使用模拟位移在弯曲梁上进行说明。然后，