Results 201 to 210 of about 1,241,577 (251)

Dynamic Model-based Saddle-point Approximation for Reliability and Reliability-based Sensitivity Analysis

Reliability Engineering & System Safety, 2020
Abstract Dynamic reliability analysis must consider both dynamic performance and parametric randomness to evaluate system safety in operation. The saddle-point approximation method is utilized to establish the dynamic probability distribution for known or unknown types of random variables. The cumulative distribution function is used to establish the
Di Zhou, Ershun Pan, Xufang Zhang, Yimin Zhang   +3 more
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Sensitivity Analysis of Reliability‐Based Optimal Solution

Journal of Engineering Mechanics, 1994
The paper examines reliability‐based optimization problems formulated as the minimization of an objective function with reliability constraints that model the requirements for the reliability index of component failure modes. It is briefly described how these problems can be solved.
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An approach for reliability-based sensitivity analysis based on saddlepoint approximation

Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability, 2017
Reliability-based sensitivity analysis quantifies the effects of input random variables on model outputs. It is an integral part of reliability-based design and robust optimal design. An efficient reliability sensitivity method is developed in this article by combining the stochastic perturbation technique and the moment-based saddlepoint ...
Hao Lu, Gang Shen, Zhencai Zhu
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Reliability-based design and sensitivity analysis of rock armors for rubble-mound breakwater

Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2020
Predicting the stability of armor blocks placed on breakwaters is one of the main challenges in coastal and ocean engineering. However, the armor layer’s damage mechanism is very complicated so that there are many uncertainties in the estimation of different parameters in armor design.
Mojtaba Karimaei Tabarestani, Atabak Feizi, Meysam Bali   +2 more
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Sensitivity Analysis in Reliability-Based Shape Optimization

1992
A reliability-based shape optimization problem is formulated with the total expected cost as the objective function and requirements for the element or systems reliability measures as constraints. As design variables both sizing and shape variables are used.
J. D. Sørensen, Ib Enevoldsen
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Reliability and reliability-based sensitivity analysis of self-centering buckling restrained braces using meta-models

Journal of Intelligent Material Systems and Structures, 2021
This paper aims to carry out sensitivity analyses to study how the effect of each design variable on the performance of self-centering buckling restrained brace (SC-BRB) and the corresponding buckling restrained brace (BRB) without shape memory alloy (SMA) rods.
Seyede Vahide Hashemi, Mahmoud Miri, Mohsen Rashki, Sadegh Etedali   +3 more
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Perturbation method for reliability-based sensitivity analysis

SPIE Proceedings, 2009
Techniques from perturbation method, reliability-based design theory, sensitivity approach are employed to present a practical and efficient perturbation method for the reliability-based sensitivity analysis. The theory formulae of reliability sensitivity are obtained.
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Seismic Reliability–Based Multiobjective Design of Water Distribution System: Sensitivity Analysis

Journal of Water Resources Planning and Management, 2017
AbstractThis study proposes a seismic reliability–based water distribution system (WDS) optimal design model that minimizes total cost and maximizes seismic reliability. Here, seismic reliability is defined as the ratio of the available quantity of water to the required demand under stochastic earthquake events. A new evaluation model is used to assess
Do Guen Yoo, Donghwi Jung, Doosun Kang, Joong Hoon Kim   +3 more
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Reliability-based fatigue assessment of steel bridges using LEFM – A sensitivity analysis

International Journal of Fatigue, 2016
The lack of an established safety format prohibits a widespread use of linear elastic fracture mechanics (LEFM) for the fatigue assessment of steel bridges. The aim of this study is to facilitate a future development of a deterministic design approach. A probabilistic sensitivity analysis has been performed to study the influence of different modeling ...
John Leander, Mohammad Al-Emrani
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Reliability-based sensitivity analysis of vehicle components with non-normal distribution parameters

International Journal of Automotive Technology, 2009
Techniques from the perturbation method, fourth moment method, reliability-based design theory, and sensitivity analysis approach are employed to present a practical and efficient method for testing the reliability sensitivity of vehicle components with non-normal distribution parameters.
Y. M. Zhang, Z. Yang
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