This paper analyzes the critical situation on condition of mechanical nonlinearity only, discusses the influence of magnetic nonlinearity on jump in loudspeaker using the method of equivalent linearization, and confirms that an effective method to reject jump in a loudspeaker is to increase the value of the elec-tromagnetism coupling factor B1.
The author combines scattering problem analysis method in construction wave theory with considering soil media non-linear character's equivalent linearization method and random vibrated fictitious inspiriting method,develops considering soil media non-linear character's random wave analysis method in open system,and proves its reasonability by Monte-Carlo analogy method.
The experimental results show that:in comparison to the traditional equivalent linearization method,the new way given in this paper can solve non-linearity problem effectively,it can be widely applied in a variety of non-linearity system,and a non-linearity system analysis excited by random vibration signal is proceeded.
Say a few words about some understanding on the design by analysis and design by plasticity, the self-limiting property of peak stress, and the equivalent linearization of stresses computed by the finite element method etc.
The two adjacent buildings connected with non-linear dry friction damper are simplified as a two-degree-of-freedom system. For the equation of motion of the system under seismic excitation,the Lyapunov equation is derived using equivalent linearization method.
Based on experimental results, both equivalent linearization and numerical simulation methods are performed to investigate the double stable limit cycle flutter characters of a two dimensional wing with preloaded free-play nonlinear pitching stiffness.
By means of optimization theory,a method is developed to solve the incompatibility between the input amplitudes used to calculate the equivalent properties of nonlinearities and the corresponding output deflections,which is created by applysing the equivalent linearization approach to analyze of limit cycle hunting of a bogie with more than one nonlinearity.
By constructing a coupling analysis scheme of amplitude,equivalent stiffness and critical hunting speed,the equivalent linearization method can be used not only to solve limit cycle hunting with sufficient accuracy,but also to analyse its stability.