Identification of failure times for a system governed by a non-linear parabolic partial differential equation
نویسندگان
چکیده
For complex processes whose evolution is described by partial differential equations, the identification of failures often difficult. In thermal systems, for example, when one or more heating sources fail, sensors placed at a distance perceive effect with delay. From these noisy observations, it then necessary to determine precision moment failure and possible restart heating. As inverse heat conduction problems are ill-posed, regularization method has been developed implemented non-linear parabolic systems. It allows detect restarts sources. following, whole problematic resolution presented. Particular attention paid measurement noise on fault identification.
منابع مشابه
Control Problems Governed by a Pseudo - Parabolic Partial Differential Equation
Let G be a bounded domain in R" and Q = G X (0, T). We consider the solution^«) of the pseudo-parabolic initial-value problem (1 + M(x))y,(u) + L(x)y(u) = u in L2(Q), y(-,0;u) = 0 in L2(G), to be the state corresponding to the control u. Here M(x) and L{x) are symmetric uniformly strongly elliptic second-order partial differential operators. The control problem is to find a control un in a fixe...
متن کاملImage Zooming using Non-linear Partial Differential Equation
The main issue in any image zooming techniques is to preserve the structure of the zoomed image. The zoomed image may suffer from the discontinuities in the soft regions and edges; it may contain artifacts, such as image blurring and blocky, and staircase effects. This paper presents a novel image zooming technique using Partial Differential Equations (PDEs). It combines a non-linear Fourth-ord...
متن کاملon the goursat problem for a linear partial differential equation
in this paper, the goursat problem of a general form for a linear partial differential equation is investigated with the help of the riemann function method. some results are given concerning the existence and uniqueness for the solution of the suggested problem.
متن کاملThe finite element method for a linear stochastic parabolic partial differential equation driven by additive noise
متن کامل
Exact solutions of a linear fractional partial differential equation via characteristics method
In recent years, many methods have been studied for solving differential equations of fractional order, such as Lie group method, invariant subspace method and numerical methods, cite{6,5,7,8}. Among this, the method of characteristics is an efficient and practical method for solving linear fractional differential equations (FDEs) of multi-order. In this paper we apply this method f...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IFAC-PapersOnLine
سال: 2022
ISSN: ['2405-8963', '2405-8971']
DOI: https://doi.org/10.1016/j.ifacol.2023.01.045