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Yansong Wang

Bio: Yansong Wang is an academic researcher from Shanghai University of Engineering Sciences. The author has contributed to research in topics: Reliability (statistics) & Materials science. The author has an hindex of 11, co-authored 46 publications receiving 382 citations. Previous affiliations of Yansong Wang include Shanghai University & Liaoning University of Technology.


Papers
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Journal ArticleDOI
TL;DR: In this paper, an elastic-plastic fracture mechanics (EPFM) method is used to study short crack fatigue life by considering the cumulative damage rule of crack initiation life, and the calculation model of fatigue crack initiation size caused by symmetric cyclic torsional alternating stress is established under low strain.

63 citations

Journal ArticleDOI
TL;DR: A new research method is proposed on the full life-cycle variation rule of mechanical products based on the main quality characteristic values should obey the nonlinear change during service time to estimate the quality loss of products more accurately.

42 citations

Journal ArticleDOI
TL;DR: In this article, a more reasonable S-N curve is obtained, and it can predict the life of product, and the parameter characteristics of samples in the error range such as mean and confidence interval by processing the original samples are acquired, which improves the reasonable of the samples.

41 citations

Journal ArticleDOI
TL;DR: The limitations of the bootstrap method itself lead to a reduction in the reliability of small sample data as discussed by the authors, which leads to the need to use statistical characteristics of the data to estimate statistical characteristics.
Abstract: The bootstrap method is mostly used to estimate statistical characteristics of small sample data. However, the limitations of the bootstrap method itself lead to a reduction in the reliability of s...

37 citations

Journal ArticleDOI
TL;DR: In this paper, a unified S-N curve based on multifailure modes and stress ratios is proposed. But the model is not suitable for modeling multilayure modes.
Abstract: This article aims at modeling unified S-N curves based on multifailure modes and stress ratios. Heterogeneous mixture distributions are used to describe life distribution of multifailure modes. Bay...

31 citations


Cited by
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28 Sep 2014
TL;DR: This paper presents an experimental study of parameter design and tolerance design for dynamic characteristics in the context of Offline and online quality control.
Abstract: Contents: Variety and Quality. Variability loss and tolerance. Determining tolerances. Tolerance design and experimental design. Offline and online quality control. Parameter design and tolerance design: case study. Experimental design for smaller is better characteristics. Experimental design for larger is better characteristics. Bypassing the S/N ratio: spring experiment. Experimental design for dynamic characteristics.

672 citations

Book ChapterDOI
01 Jan 1998

354 citations

Posted Content
TL;DR: In this paper, a panel jackknife or an analytical bias correction motivated by large T is proposed to reduce the bias of the fixed effects estimators of panel models, where T grows at the same rate as n, so that asymptotic confidence intervals are incorrect.
Abstract: Fixed effects estimators of panel models can be severely biased because of the well-known incidental parameters problem We show that this bias can be reduced by using a panel jackknife or an analytical bias correction motivated by large T We give bias corrections for averages over the fixed effects, as well as model parameters We find large bias reductions from using these approaches in examples We consider asymptotics where T grows with n, as an approximation to the properties of the estimators in econometric applications We show that if T grows at the same rate as n the fixed effects estimator is asymptotically biased, so that asymptotic confidence intervals are incorrect, but that they are correct for the panel jackknife We show T growing faster than n1/3 suffices for correctness of the analytic correction, a property we also conjecture for the jackknife

333 citations

01 Jan 2016

171 citations

Journal ArticleDOI
TL;DR: A probabilistic framework for fatigue life prediction and reliability assessment of an engine high pressure turbine disc is proposed to incorporate the effects of load variations and mean stress, which provides a reference for engine structural design under a given target failure probability.
Abstract: In the present work, a probabilistic framework for fatigue life prediction and reliability assessment of an engine high pressure turbine disc is proposed to incorporate the effects of load variatio...

140 citations