Time-Variant Reliability Analysis Method for Uncertain Motion Mechanisms Based on Stochastic Process Discretization
نویسندگان
چکیده
The reliability of a motion mechanism is affected by corrosion, wear, aging and other components’ performance degradations with the extension service time. This paper tackles this problem proposing time-varying analysis method for uncertain mechanisms. First, model error constructed assessing difference between actual expected motion. A proposed. function discretized into several static functions, which are further approximated normal variables. Then, correlation coefficient matrix probability density these variables calculated, obtained via high-dimensional Gaussian integration. study demonstrates that proposed successfully transforms time-invariant problems analysis, handles nonlinear involving random stochastic processes, significantly increases computational efficiency. Finally, method’s effectiveness verified two numerical examples one practical engineering problem.
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ژورنال
عنوان ژورنال: IEEE Access
سال: 2022
ISSN: ['2169-3536']
DOI: https://doi.org/10.1109/access.2022.3153524