نتایج جستجو برای: system Conventional machines Machine conditions

تعداد نتایج: 3267935  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده برق و کامپیوتر 1391

in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...

Buliaminu Kareem Khumbulani Mpofu Michael Kanisuru Adeyeri

This article describes the integration of temperature and vibration models for maintenance monitoring of conventional machinery parts in which their optimal and best functionalities are affected by abnormal changes in temperature and vibration values thereby resulting in machine failures, machines breakdown, poor quality of products, inability to meeting customers’ demand, poor inventory contro...

Khumbulani Mpofu Michael Kanisuru Adeyeri

The article is centred on software system development for manufacturing company that produces polyethylene bags using mostly conventional machines in a competitive world where each business enterprise desires to stand tall. This is meant to assist in gaining market shares, taking maintenance and production decisions by the dynamism and flexibilities embedded in the package as customers’ demand ...

Electric and hybrid electric vehicles are attractive candidates for sustainable transportation due to its higher efficiency and low emission. The critical choice on the electric motors is its capability of motoring and regenerative braking characteristics. Switched reluctance machines are viable candidate as with proper control and extended constant power range operation replacing the multi-gea...

Journal: :international journal of advanced design and manufacturing technology 0
hassan farsijani associate professor of industrial management department, faculty of management & accounting, shahid beheshti university, tehran, iran. mohsen shafiei nikabadi assistant professor of industrial management department, economics and management faculty, semnan university, semnan, iran. sara foroutan faculty of management & accounting, shahid beheshti university, tehran, iran.

machine-part family formation is one of major applications of group technology (gt). the machine cell formation problem in cellular manufacturing system (cms) involves the decomposition of the manufacturing system into machine cells. part families are identified such that they are fully processed within a machine cell. the problem of cell design is a very complex task with wide ranging implicat...

Journal: :international journal of smart electrical engineering 2015
majid aryanezhad elahe ostadaghaee

electric and hybrid electric vehicles are attractive candidates for sustainable transportation due to its higher efficiency and low emission. the critical choice on the electric motors is its capability of motoring and regenerative braking characteristics. switched reluctance machines are viable candidate as with proper control and extended constant power range operation replacing the multi-gea...

Journal: :نشریه دانشکده فنی 0
سید حسن بصیری

the conventional tunneling procedures for example drilling, charging, blasting, loading and supporting, are highly developed. new tunneling machines have recently come into operation and others are under construction or development. impactors are used in large numbers in the coal mining industry. face-heading machines are successfully used in new tunneling procedures in both soft and medium-har...

Journal: :journal of artificial intelligence in electrical engineering 0

this paper presents a method for damping of low frequency oscillations (lfo) in a power system. the powersystem contains static synchronous series compensators (sssc) which using a chaotic harmony searchalgorithm (chsa), optimizes the lead-lag damping stabilizer. in fact, the main target of this paper isoptimization of selected gains with the time domain-based objective function, which is solve...

Journal: :مدیریت صنعتی 0
سیدحسین احمدی دانشجوی کارشناسی ارشد مدیریت صنعتی، دانشگاه تهران، ایران نیما گروسی مختار زاده استادیار گروه مدیریت صنعتی دانشگاه تهران

maintenance process is one of the most necessary processes in every organization, whose main task is maintaining machines in desired conditions or restoring machines from non-optimal (nonoperational)conditions to optimal (operational) conditions. machines failure would result in loss of machines availability time, and rise of both organization costs and production time. also, it may cause irrep...

2015
Wei Hua Ling Kang Zhou Omar Hegazy

In this paper, a co-axial dual-mechanical ports flux-switching permanent magnet (CADMP-FSPM) machine for hybrid electric vehicles (HEVs) is proposed and investigated, which is comprised of two conventional co-axial FSPM machines, namely one high-speed inner rotor machine and one low-speed outer rotor machine and a non-magnetic ring sandwiched in between. Firstly, the topology and operation prin...

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