نتایج جستجو برای: failure analysis

تعداد نتایج: 3120164  

Journal: :international journal of electrical and electronics engineering 0
mansour ojaghi زنجان - خ صفا -کوچه شهید علوی - سمت راست - پ 7 mahdi sabouri

multiple coupled circuit modeling of squirrel-cage induction motors, or winding function approach is the most detailed and complete analytical model used to analyze the performance of the faulty induction motors. this paper extends the above-mentioned model to a saturable model including variable degrees of the saturation effects using an appropriate air gap function and novel techniques for lo...

In layered and blocky rock slopes, toppling failure is a common mode of instability that may occur in mining engineering. If this type of slope failure occurs as a consequence of another type of failure, it is referred to as the secondary toppling failure. “Slide-head-toppling” is a type of secondary toppling failures, where the upper part of the slope is toppled as a consequence of a semi-circ...

A Sahli L Nourine, S Sahli

This paper deals with the development of a numerical simulation methodology for estimating damages in laminate composite materials caused by a low-speed impact. Experimental tests were performed on laminate plates reinforced with woven carbon fibers and epoxy resin. Three thickness plates were evaluated. The impact loads were transversal and punctual. Two lamina failure criteria were evaluated....

Journal: :iranian journal of management studies 2014
seyyed habibollah mirghafouri faezeh asadian ardakani fatemeh azizi

the failure mode and effects analysis (fmea) is a widely used analytical technique that helps to identify and reduce the risks of failure in a system, component, or process. one important issue of fmea is the determination of the risk priorities of failure modes. risk ranking is produced in order to prioritize the focus on each of the failure modes that are identified. in this study, we applied...

Journal: :international journal of data envelopment analysis 2014
b. nasr esfahani h. shirouyehzad f. mokhatab rafiei

the need to establish power plants to supply the required electricity of the country has been rising due to increasing demand levels as well as the lack of governmental resources. furthermore, the available traditional attitude in performing and conducting power plant projects has made government seek a modern attitude. this paper tries to use the topics that have been employed in automotive in...

Journal: :international journal of industrial mathematics 0
a. hadi-vencheh q s. hejazi a a. forghani q s. n. hejazi a

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Journal: :international journal of industrial mathematics 2012
a. hadi-vencheh s. hejazi a. forghani s. n. hejazi

Journal: :international journal of human capital in urban management 0
b. akbari neisiani department of management and economics, science and research branch, islamic azad university, tehran, iran s.m. seyedan department of management, kharazmi university, tehran, iran a. hadian department of management and industrial engineering, payame noor university , north of tehran, tehran, iran

every year, many accidents leading to physical injuries in kindergartens, indicates that a very large percentage of them are related to the safety concerns and lack of hygiene in these places. families, due to their busy life style and working hours and also children needs of preschool education, are searching to find most suitable kindergartens for their children. selecting a kindergarten with...

Journal: :computational methods in civil engineering 2010
s. pourzeynali t.k. dattab

a reliability analysis of suspension bridges against buffeting failure due to gustiness of wind velocity is carried out using the concept of pra (probabilistic risk analysis) procedure. for this purpose, the bending stresses at the critical nodes of the bridge deck are obtained for buffeting forces using a spectral analysis technique and a finite element approach. for the purpose of reliability...

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