Abstract
This paper deals with an experimental study on the modeling and identification of the hysterical behavior of inerters. Unlike existing methods that can only consider a constant inertance to capture a static model of the device, we develop three different dynamic models for a ball-screw type inerter. To eliminate the effects of the measurement noise, an empirical mode decomposition (EMD) method is proposed. Then, three dynamic models—the Dahl, LuGre and Bouc–Wen model—are used in order to model the friction behavior of the device. Using the least-square optimization method, the parameters of the models are estimated. The results of the tuned models are compared together within different frequencies. The good agreement between predicted and measured data shows that LuGre and Bouc–Wen models can be effective for modelling the hysteretic behavior of friction inside the inerter mechanism. It is also shown that the Bouc–Wen model has better correlation with the experimental results in all test frequencies and amplitudes.
Highlights
Vibration suppression is a fundamental topic in various systems such as vehicles, wind turbines, buildings and other structures
Fi,exp (x) − Fi,mod (x) i=1 where N is the number of data points, Fi,exp and Fi,mod are the measured force and the force calculated using a specific model, respectively, and x is the variable vector that includes different parameters depending on the model type (Dahl, LuGre or Bouc–Wen model)
The vector of variables varies depending on the model which is used for the inerter
Summary
Vibration suppression is a fundamental topic in various systems such as vehicles, wind turbines, buildings and other structures. The inerter nonlinearities, including friction, backlash and the elastic effect, and their impact on vehicle suspension performance were considered in the research of Wang et al [17] They built a testing platform to verify the nonlinear behavior of the inerter model. Sun et al [18] investigated the effect of ball-screw inerter nonlinearities on the vibration isolation performance of vehicle suspensions systems They considered friction and the elastic effect of the screw on the modeling part of the device. Based on the results of dynamic performance tests, the parameter of the models are tuned It should be noted the main focus of this research is to model the hysteretic effect of friction force and to find the most proper and realistic model for this device.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
