Recognising patterns in electromechanical systems
نویسندگان
چکیده
* Instituto Superior Técnico, DEEC/SMEEP CAUTL-Lab. de Mecatrónica, Av. Rovisco Pais 1, 1096 Lisboa Codex, Portugal. phone: 351-1-8417432 fax: 351-1-8417167 http://rorty.ist.utl.pt/pbranco E-Mail: [email protected] + Escola Superior de Tecnologia, Instituto Politécnico de Setúbal, Rua do Vale de Chaves, Estefanilha 2910 Setúbal, Portugal. phone: 351-65-761621. fax: 351-65-721869 E-Mail: [email protected]
منابع مشابه
Feature Extraction for the Prognosis of Electromechanical Faults in Electrical Machines through the DWT
Recognition of characteristic patterns is proposed in this paper in order to diagnose the presence of electromechanical faults in induction electrical machines. Two common faults are considered; broken rotor bars and mixed eccentricities. The presence of these faults leads to the appearance of frequency components following a very characteristic evolution during the startup transient. The ident...
متن کاملPatterns of Dependencies in Dynamic Multivariate Data
In intensive care, clinical information systems permanently record more than one hundred time dependent variables. Besides the aim of recognising patterns like outliers, level changes and trends in such high-dimensional time series, it is important to reduce their dimension and to understand the possibly time-varying dependencies between the variables. We discuss statistical procedures which ar...
متن کاملModelling and control of an electromechanical steering system in full vehicle models
In the automotive industry, electrical and electromechanical components and systems become more and more important. In comparison with commonly used mechanical and hydraulic systems they offer a large number of advantages with respect to efficiency and flexibility, for example. Therefore, conventional hydraulic steering systems are being replaced more and more with electromechanical ones. Curre...
متن کاملDomain Patterns, Texture and Macroscopic Electro-mechanical Behavior of Ferroelectrics
This paper examines the domain patterns and its relation to the macroscopic electromechanical behavior of ferroelectric solids using a theory based on homogenization and energy minimization. The domain patterns in different crystalline systems are classified, the spontaneous strain and polarization for single crystals and polycrystals are characterized, and the optimal texture of polycrystals f...
متن کاملA Mesoscopic Electromechanical Theory of Ferroelectric Films and Ceramics
We present a multi-scale modelling framework to predict the effective electromechanical behavior of ferroelectric ceramics and thin films. This paper specifically focuses on the mesoscopic scale and models the effects of domains and domain switching taking into account intergranular constraints. Starting from the properties of the single crystal and the pre-poling granular texture, the theory p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Pattern Recognition Letters
دوره 18 شماره
صفحات -
تاریخ انتشار 1997