Identification of plate rigidities of a circular plate with cylindrical orthotropy using vibration data

Measurement of the material properties of a circular plate with cylindrical orthotropy is difficult. This paper presents a method for the identification of plate rigidities of a circular plate with cylindrical orthotropy using vibration data. The method is based on the so-called mixed numerical/experimental method and relies basically on three items: (1) an accurate numerical model of the circular disk; (2) a set of reliable experimental modal model data; (3) a fast and robust parameter estimation method.