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The sub-frame which insulates the vehicle chassis from the high frequency excitation of the engine has a great influence on vehicle performance. Currently, the research on the influence of sub-frame on vehicle performance mainly aims at the vehicle vibration attenuation and noise reduction performance, and there is a lack of research on vehicle handling stability and the accurate description of the...
A unified reliability analysis method is presented to handle the problem of multi-source uncertainties with random, fuzzy and interval variables. In the proposed method, a unified reliability analysis model (URAM) is constructed by applying the conditional failure on the basis of the relationship of probability, possibility, and evidence theories. The URAM belongs to a three layers conditional reliability...
This paper addresses the problem of non-stationary signal noise suppression, represents the conception of wavelet transformation and puts forward two kinds of measurements to evaluate the effectiveness of noise suppression. Comparison experiments for noise suppression are made using Fourier analysis and Wavelet analysis. Simulation result shows that Wavelet analysis is more suitable for non-stationary...
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