نتایج جستجو برای: track dynamic behavior

تعداد نتایج: 1044671  

2007
Josip Vrbanek Wilson Wang

A reliable multi-step predictor is very useful to a wide array of applications to forecast the behavior of dynamic systems. The objective of this paper is to develop a more robust data-driven predictor for time series forecasting. Based on simulation analysis, it is found that multi-step-ahead forecasting schemes based on step inputs perform better than those based on sequential inputs. It is a...

2015
Gan Zhou Wenquan Feng Gautam Biswas Wenfeng Zhang XiuMei Guan

The dynamic nature of hybrid systems involves discrete switching behavior between several operating modes and continuous plant dynamics governed by continuous models in each mode. State estimation is a important class of approaches for online monitoring and diagnosis of hybrid systems, which relies on the estimation of unknown variables using a filtering approach. Focused hybrid estimation meth...

Journal: :Railway Engineering Science 2021

Abstract The aim of this study is to develop coupled matrix formulations characterize the dynamic interaction between vehicle, track, and tunnel. vehicle–track system established in light dynamics theory. physical characteristics mechanical behavior tunnel segments rings are modeled by finite element method, while soil layers vehicle–track–tunnel (VTT) as an assemblage 3-D mapping infinite elem...

2011
Yang Zhang Shahnawaz Talpur

Locks are efficient concurrent control mechanisms to ensure that shared resources are accessed by only a single thread in multi-threaded applications. However, for multi-core systems, lock usage leads to lock contention, which degrades program performance, increases system response time, and negatively affects scalability. This paper initially models lock contention from two aspects: static str...

Journal: :advances in railway engineering,an international journal 2014
majid shahravi mohammad reza sajjadi mohammad mehdi feizi

regarding increasing importance of tank wagons and efficiency in fluids transportation, their usage is increasing every day. thus paying attention to their designs just as dynamic analysis of wagons during travelling time is vitally important. in this task, sloshing coefficient as prominent parameter in tank wagons designing has been investigated. to ease of efficient design, theses parameters ...

ژورنال: Journal of Railway Research 2021
Adoh, Lucky Ugochukwu, Tesfaye , Samuel,

The rail track is one of the most important elements of a railway system. During the passage of trains, the rails are subjected to contact load that comes from the wheels of the train.  The railway track often fails in service due to wear caused by contact fatigue and other wear damage mechanisms that could also limit the life span of the railway infrastructure and railway vehicle. The aim of t...

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