Advanced Method to Estimate the Reliability-Based Sensitivity of Mechanical Components With Strongly Nonlinear Performance Function

ZHANG Yi-min; ZHU Li-sha; WANG Xin-gang

doi:10.3879/j.issn.1000-0887.2010.10.013

Volume 31 Issue 10

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ZHANG Yi-min, ZHU Li-sha, WANG Xin-gang. Advanced Method to Estimate the Reliability-Based Sensitivity of Mechanical Components With Strongly Nonlinear Performance Function[J]. Applied Mathematics and Mechanics, 2010, 31(10): 1256-1266. doi: 10.3879/j.issn.1000-0887.2010.10.013

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Advanced Method to Estimate the Reliability-Based Sensitivity of Mechanical Components With Strongly Nonlinear Performance Function

doi: 10.3879/j.issn.1000-0887.2010.10.013

School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, P. R. China

Received Date: 1900-01-01
Rev Recd Date: 2010-07-23
Publish Date: 2010-10-15

Abstract

Abstract

Based on the random perturbation technique of reliability sensitivity design, some realistic reliability-based sensitivity issues were discussed, with some of them having a structure of high nonlinear performance function.Combining the relating theories of moment method of reliability analysis, matrix differential and Kronecker algebra, the reliability-based sensitivity method based on perturbation method was modified, given that the first four moments of random variables.Meanwhile, a reliability-based sensitivity computing methodology also was put forward.Some examples were adopted to prove that using this methodology could highly improve the accuracy of reliabilitybased sensitivity computation and this methodology also offers some more dependable theoretic basis for engineering.
- reliability,
- sensitivity,
- non-linear,
- perturbation theory,
- moment method

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References

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