Distributed Dynamic Load Identification for Complex Non-Rectangular Plate

Distributed dynamic load identification plays a crucial role in structural vibration reduction, noise attenuation, optimization design, fatigue analysis, as well as intelligent and adaptive control. Non-rectangular plates are commonly encountered in practical applications. This paper firstly addresses the challenges involved in extending the method for identifying distributed dynamic loads on rectangular plates to non-rectangular plates. Secondly, coordinate transformation approach is introduced to establish a relationship between non-rectangular and rectangular plates, leading to the proposal of a novel method for identifying distributed dynamic loads on non-rectangular plates. Finally, the effectiveness of the proposed method is validated through both simulations and experiments. The results show an amplitude identification error of 8.6% and a phase identification error of 9.3%, confirming the method's reliability.