Parameter identification based on stabilization diagram with kernel fuzzy clustering method

Research has been carried out on parameter identification of the bridge structure based on stabilization diagram with kernel fuzzy clustering method in input space and stochastic subspace method. A newly stabilization diagram plotted frequency against arbitrary column data of modal assurance criterion is proposed without the consideration of damping. The presented compared circle method can distinguish the spurious and physical modes accurately, intelligently and no longer to need people´s subjective participation. Numerical simulation results of a simple beam bridge demonstrate the correctness and reliability of the employed approaches.