Results 81 to 90 of about 1,544,499 (195)

A dual-mode generalized likelihood ratio approach to self-reorganizing digital flight control system design [PDF]

The research is reported on the problems of failure detection and reliable system design for digital aircraft control systems. Failure modes, cross detection probability, wrong time detection, application of performance tools, and the GLR computer ...
Bueno, R., Chow, E., Gershwin, S. B., Willsky, A. S.   +3 more
core   +1 more source

Deep-Reinforcement-Learning-Enhanced Kriging Modeling Method with Limit State Dominant Sampling for Aeroengine Structural Reliability Analysis

Aerospace
Reliability analysis of aeroengine structures is a critical task in aerospace engineering, but traditional methods often face challenges of low computational efficiency and insufficient accuracy when dealing with complex, high-dimensional, and nonlinear ...
Jiongran Wen, Yipin Sun, Aifang Chao, Baiyang Zheng, Jian Li, Haozhe Feng   +5 more
doaj   +1 more source

Incorporating finite element analysis into component life and reliability [PDF]

A method for calculating a component's design survivability by incorporating finite element analysis and probabilistic material properties was developed.
August, Richard, Zaretsky, Erwin V.
core   +1 more source

Stochastic Vibration of Damaged Cable System Under Random Loads

Vibration
This study proposes an integrated framework that combines nonlinear stochastic vibration analysis with reliability assessment to address the safety issues of cable systems under damage conditions.
Yihao Wang, Wei Li, Drazan Kozak
doaj   +1 more source

Prognostic Launch Vehicle Probability of Failure Assessment Methodology for Conceptual Systems Predicated on Human Causal Factors [PDF]

Lessons learned from past failures of launch vehicle developments and operations were used to create a new method to predict the probability of failure of conceptual systems.
Nieberding, J. Joseph, Ross, Lawrence J., Williams, Craig H.   +2 more
core   +1 more source

Seismic Fragility of Large-Span Elevated U-Shaped Aqueduct Based on Incremental Dynamic Analysis

Applied Sciences
This study uses a U-shaped aqueduct structure in a specific irrigation area as the research object to examine the damage patterns of large-span elevated U-shaped aqueduct structures under seismic action. A single-span aqueduct model that integrates fluid–
Jing Wei, Xinjun Yan
doaj   +1 more source

SORM DG - an efficient SORM based on differential geometry

REM: International Engineering Journal
The first order reliability method (FORM) efficiently performs first order structural reliability analysis, but with limited accuracy. On the other hand, the traditional second order reliability method (SORM) was established to improve the results of ...
Emmanoel Guasti Ferreira, Marcílio Sousa da Rocha Freitas, José Antônio da Rocha Pinto, Geraldo Rossoni Sisquini   +3 more
doaj   +1 more source

Modeling of Tensile Stress Distribution Considering Anisotropy of Mechanical Properties of Thin-Walled AlSi10Mg Samples Obtained by Selective Laser Melting

Journal of Manufacturing and Materials Processing
The work that is being presented demonstrates that there is a critical point at which the engineering stress–strain diagram’s elastic–plastic region transitions to yield and fracture stresses.
Sergey N. Grigoriev, Nikita Yu. Nikitin, Aleksander Frolov, Petr Shapovalov, Anton Medeltsev, Mikhail Voronov, Roman Khmyrov, Idarmach Idarmachev, Pavel Peretyagin   +8 more
doaj   +1 more source

Performance of concatenated Reed-Solomon/Viterbi channel coding [PDF]

The concatenated Reed-Solomon (RS)/Viterbi coding system is reviewed. The performance of the system is analyzed and results are derived with a new simple approach. A functional model for the input RS symbol error probability is presented.
Divsalar, D., Yuen, J. H.
core   +1 more source

ON ASSESSMNENT OF PHYSICAL WEAR IN ELEMENTS OF TECHNICAL DEVICES

Наука и техника, 2015
Real assessment of wear in technical devices, construction structures, minings, their elements and connections is of great importance for provision of operational security and efficiency.
S. N. Osipov, D. A. Pozdniakov
doaj