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In this paper, the characteristics of the kinetic reliability of space four-links mechanism are analyzed and the relationship between the kinetic accuracy and wear clearances in joints is explored, using Advanced First Order and Second Moment (AFOSM) method and Monte-Carlo Simulation (MCS). The Archard wear model is applied to analyze the increasing wear clearances in joints; and the function between...
As the main source of ship propulsion motor, reduce the vibration noise is of great significance for improving the acoustic stealth performance of ships. Establish motor feet vibration transfer path analysis model to determine the primary excitation source and transfer path; Hammering method is used to test the transfer function of the path, and collect the response of reference point and target point...
This paper proposes a new local polynomial modeling (LPM) method for identification of time-varying autoregressive (TVAR) models and applies it to time-frequency analysis (TFA) of event-related electroencephalogram (ER-EEG). The LPM method models the TVAR coefficients locally by polynomials and estimates the polynomial coefficients using weighted least-squares with a window having a certain bandwidth...
An axial flux permanent magnet (AFPM) machine with dual rotors and single air-cored stator is studied in this paper. The machine is applied for vertical-shaft small power off-grid wind generating system. A 2-dimensional (2D) finite element analysis (FEA) method is proposed to approximately solve to the 3-dimensional (3D) magnetic field inside the AFPM machine. And a 2D analytical method is also presented...
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