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A method based on finite element model is presented that is used to identify stiffness of mechanical joint. By means of shock excitation, response of the system is obtained in which joints are included. Fourier Transform is used to obtained response spectrum of system. Based on FEM, the system model including joints is build and then low order natural frequencies are obtained by modal analysis. Natural...
The simulation method of normal hysteretic characteristics of joint is studied, and a theoretical model is built, which is based on the generalized Bouc-Wen function. By means of experiment of normal stiffness of joint, data of load-deformation relationships of joint are obtained. Using the method of least squares to fit data of experiment, the parameters of the model are identified. The curve of...
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