Random function based spectral representation of stationary and non-stationary stochastic processes

Z Liu, W Liu, Y Peng - Probabilistic Engineering Mechanics, 2016 - Elsevier
In conjunction with the formulation of random functions, a family of renewed spectral
representation schemes is proposed. The selected random function serves as a random …

An expected integrated error reduction function for accelerating Bayesian active learning of failure probability

P Wei, Y Zheng, J Fu, Y Xu, W Gao - Reliability Engineering & System …, 2023 - Elsevier
The combination of active learning with surrogate model (eg, Gaussian Process Regression,
GPR) for structural reliability analysis has been extensively studied and proved to be of …

结构随机地震反应与可靠度的概率密度演化分析研究进展

陈建兵, 李杰 - 工程力学, 2014 - engineeringmechanics.cn
结构随机动力反应与可靠度分析对保障工程结构在灾害性动力作用下的安全性至关重要.
数十年来, 国内外学者进行了大量的研究, 取得了丰硕的成果, 但在多自由度非线性系统随机动力 …

A decoupled approach for determination of the joint probability density function of a high-dimensional nonlinear stochastic dynamical system via the probability density …

MZ Lyu, DC Feng, JB Chen, J Li - Computer Methods in Applied Mechanics …, 2024 - Elsevier
The joint probability density function (PDF) of multiple response processes of a system is a
crucial topic in the fields of science and engineering. It is adopted to describe the dependent …

Train-bridge system dynamics analysis with uncertain parameters based on new point estimate method

L Jiang, X Liu, P Xiang, W Zhou - Engineering Structures, 2019 - Elsevier
In the analysis of train-bridge coupled vibration system, randomness of parameters of high-
speed railway bridge cannot be ignored. The new point estimate method (NPEM) is a kind of …

Seismic running safety assessment for stochastic vibration of train–bridge coupled system

H Zhao, B Wei, L Jiang, P Xiang - Archives of Civil and Mechanical …, 2022 - Springer
With the rapid development of high-speed railway, the seismic running safety problem of
high-speed train passing on bridge is becoming increasingly prominent. Since different …

A PDEM-based perspective to engineering reliability: From structures to lifeline networks

J Li - Frontiers of Structural and Civil Engineering, 2020 - Springer
Research of reliability of engineering structures has experienced a developing history for
more than 90 years. However, the problem of how to resolve the global reliability of …

A stochastic harmonic function representation for non-stationary stochastic processes

J Chen, F Kong, Y Peng - Mechanical Systems and Signal Processing, 2017 - Elsevier
The time-domain representation of non-stationary stochastic processes is of paramount
importance, in particular for response analysis and reliability evaluation of nonlinear …

A novel model for determining the amplitude-wavelength limits of track irregularities accompanied by a reliability assessment in railway vehicle-track dynamics

L Xu, W Zhai - Mechanical Systems and Signal Processing, 2017 - Elsevier
The loads on a vehicle and the vibrations transmitted to track infrastructures due to the
operation of rolling stocks are mainly determined by the irregularities of the track profile …

Non-stationary random vibration analysis of a 3D train–bridge system using the probability density evolution method

Z Yu, J Mao, F Guo, W Guo - Journal of Sound and Vibration, 2016 - Elsevier
Rail irregularity is one of the main sources causing train–bridge random vibration. A new
random vibration theory for the coupled train–bridge systems is proposed in this paper. First …