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相关论文: An Efficient Approach to Fractional Analysis for N…

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Fractional order models have proven to be a very useful tool for the modeling of the mechanical behaviour of viscoelastic materials. Traditional numerical solution methods exhibit various undesired properties due to the non-locality of the…

数值分析 · 数学 2023-01-30 Kai Diethelm

This study investigates the use of fractional order differential models to simulate the dynamic response of non-homogeneous discrete systems and to achieve efficient and accurate model order reduction. The traditional integer order approach…

数值分析 · 数学 2016-12-22 John P. Hollkamp , Mihir Sen , Fabio Semperlotti

This study presents a comprehensive framework for constitutive modeling of a frame-invariant fractional-order approach to nonlocal thermoelasticity in solids. For this purpose, thermodynamic and mechanical balance laws are derived for…

数值分析 · 数学 2021-02-11 Sai Sidhardh , Sansit Patnaik , Fabio Semperlotti

We present a theoretical and computational framework based on fractional calculus for the analysis of the nonlocal static response of cylindrical shell panels. The differ-integral nature of fractional derivatives allows an efficient and…

计算工程、金融与科学 · 计算机科学 2022-06-29 Sai Sidhardh , Sansit Patnaik , Fabio Semperlotti

A precise domain triangulation is recognized as indispensable for the accurate numerical approximation of differential operators within collocation methods, leading to a substantial reduction in discretization errors. An efficient finite…

数值分析 · 数学 2025-07-15 G. Shylaja , V. Kesavulu Naidu , B. Venkatesh , S. M. Mallikarjunaiah

Viscoelasticity and related phenomena are of great importance in the study of mechanical properties of material especially, biological materials. Certain materials show some complex effects in mechanical tests, which cannot be described by…

生物物理 · 物理学 2017-09-19 Mohammad Amirian Matlob , Yousef Jamali

This paper presents a data-integrated framework for learning the dynamics of fractional-order nonlinear systems in both discrete-time and continuous-time settings. The proposed framework consists of two main steps. In the first step,…

系统与控制 · 电气工程与系统科学 2025-06-19 Bahram Yaghooti , Chengyu Li , Bruno Sinopoli

In this paper, a nonlinear system of fractional ordinary differential equations with multiple scales in time is investigated. We are interested in the effective long-term computation of the solution. The main challenge is how to obtain the…

数值分析 · 数学 2022-01-07 Zhaoyang Wang , Ping Lin

In this study, the Van't Hoff differential equation is taken under consideration by making use of fractional derivative tools. In this context, the nonlinear Arrhenius behaviour can be obtained and some experimental values of reaction rate…

化学物理 · 物理学 2016-03-23 Nelson H. T. Lemes , Valentino A. Simpao , José P. C. dos Santos

We investigate a specific finite element model to study the thermoelastic behavior of an elastic body within the context of nonlinear strain-limiting constitutive relation. As a special subclass of implicit relations, the thermoelastic…

数值分析 · 数学 2022-03-02 Hyun C. Yoon , Karthik K. Vasudeva , S. M. Mallikarjunaiah

We are devoted to the study of a nonhomogeneous time-fractional Timoshenko system with frictional and viscoelastic damping terms. We are concerned with the well-posedness of the given problem. The approach relies on some functional-analysis…

偏微分方程分析 · 数学 2022-02-22 S. Mesloub , E. Alhazzani , H. E. Gadain

This paper proposes a higher-order multiscale computational method for nonlinear thermo-electric coupling problems of composite structures, which possess temperature-dependent material properties and nonlinear Joule heating. The innovative…

数值分析 · 数学 2025-01-24 Hao Dong , Zongze Yang , Yufeng Nie

This contribution deals with the creation of numerical models for the simulation of the dynamic characteristics of fractional-order control systems and their comparison with analytical models. We give the results of the comparison of…

最优化与控制 · 数学 2007-05-23 L. Dorcak

In this work, we consider fluid-structure interaction simulation with nonlinear hyperelastic models in the solid part. We use a partitioned approach to deal with the coupled nonlinear fluid-structure interaction problems. We focus on…

数值分析 · 数学 2013-12-20 Ulrich Langer , Huidong Yang

Fractional differential equations provide a tractable mathematical framework to describe anomalous behavior in complex physical systems, yet they introduce new sensitive model parameters, i.e. derivative orders, in addition to model…

数值分析 · 数学 2018-06-05 Ehsan Kharazmi , Mohsen Zayernouri

This contribution deals with identification of fractional-order dynamical systems. System identification, which refers to estimation of process parameters, is a necessity in control theory. Real processes are usually of fractional order as…

其他计算机科学 · 计算机科学 2016-11-15 Deepyaman Maiti , Ayan Acharya , R. Janarthanan , Amit Konar

This paper is devoted to the study of the flatness property of linear time-invariant fractional systems. In the framework of polynomial matrices of the fractional derivative operator, we give a characterization of fractionally flat outputs…

计算物理 · 物理学 2015-09-10 Stéphane Victor , Pierre Melchior , Jean Lévine , Alain Oustaloup

In this work, we consider the coupled systems of linear unsteady partial differential equations, which arise in the modeling of poroelasticity processes. Stability estimates of weighted difference schemes for the coupled system of equations…

数值分析 · 计算机科学 2013-11-18 A. E. Kolesov , P. N. Vabishchevich , M. V. Vasilyeva

The paper deals with the fundamental problem of a modeling of the physical, in particular, thermal hydraulic processes, in various media of fractal structure of the natural, technological and technical systems and devices. The examples of a…

计算物理 · 物理学 2018-02-27 Ivan V. Kazachkov

Identification of fractional order systems is considered from an algebraic point of view. It allows for a simultaneous estimation of model parameters and fractional (or integer) orders from input and output data. It is exact in that no…

最优化与控制 · 数学 2013-02-19 Nicole Gehring , Joachim Rudolph
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