Equivalent Dynamic Stiffness Mapping technique for identifying nonlinear structural elements from frequency response functions
Dealing with strong nonlinear structures with distorted response curves such as jumps and breaks. No need to strictly control the excitation force as the measured data are used in the identification. No need to pre-identify underlying linear parameters of the structure. This technique could be nonparametric by using ordinary polynomials and require no priori information about the nonlinearity, which makes it possible to deal with complex nonlinear structures that may not be well understood.
equivalent dynamic stiffness mapping identification nonlinear structures frequency response functions