نتایج جستجو برای: characteristics of organizatioal behaviour

تعداد نتایج: 21197280  

ژورنال: Journal of Railway Research 2016
Li, Zili, Naeimi, Meysam, Dollevoet, Rolf ,

A new reduced–scale test rig is developed owing to significantly contribute to the applicability of the laboratory tests on rolling contact fatigue (RCF) in wheel-rail material. This paper introduces the dynamic analysis of the test rig, in order to assess the vibration behaviour of the system with respect to contact phenomenon. Finite element modelling (FEM) is used to simulate the mecha...

ژورنال: مهندسی دریا 2011
خدمتی, محمدرضا, عدالت, پدرام,

This research is concerned with the nonlinear elastic-plastic analysis of ship curved bilge plate, located at the junction between ship's side and its bottom. After derivation of average stress-average strain relationships by finite element analyses of the models with varying dimensional and mechanical characteristics, the effects of any of parameters on the trends of such relationships is stud...

Journal: :iranian journal of mechanical engineering transactions of the isme 0
s. etemadi school of mechanical engineering, sharif university of technology, tehran h. kouhi school of mechanical engineering, sharif university of technology, tehran a. alasty school of mechanical engineering, sharif university of technology, tehran g.r. vossoughi school of mechanical engineering, sharif university of technology, tehran

in previous papers authors have considered agents as inertia-less self driven particles and designed a flocking algorithm. application of this algorithm to agents with considerable inertial characteristics needs a behavioural controller. the controller uses the local information and helps every agent to imitate the desired behaviour as a member of the flocking frame which covers the main issue ...

Meysam Naeimi Rolf Dollevoet

The ability to perform rolling contact fatigue (RCF) experiments in wheel–rail material is provided by a new small–scale test rig, manifesting the actual dynamic behaviour of the railway system. In this paper, a multi-body dynamics (MBD) model is proposed, simulating the vibration behaviour of the prescribed rig. The new testing facility is modelled using a three-dimensional model of the vehicl...

Abstract: Voltage instability is a major threat for security of power systems. Preserving voltage security margin at a certain limit is a vital requirement for today’s power systems. Assessment of voltage security margin is a challenging task demanding sophisticated indices. In this paper, for the purpose of on line voltage security assessment a new index based on the correlation characteristic...

Many researchers have investigated how to increase the overall efficiency of solar-driven thermal systems. Several key parameters, such as collector efficiency and storage tank characteristics, may impose some constraints on the annual solar fraction (ASF) of such systems. In this paper, the behaviour of integrating the phase change material (PCM) in SDHW systems is modelled and optimized n...

Behrang Sajadi Mehrdad Shirinbakhsh Nima Mirkhani

Many researchers have investigated how to increase the overall efficiency of solar-driven thermal systems. Several key parameters, such as collector efficiency and storage tank characteristics, may impose some constraints on the annual solar fraction (ASF) of such systems. In this paper, the behaviour of integrating the phase change material (PCM) in SDHW systems is modelled and optimized n...

Journal: :Journal of Human Growth and Development 2016

ژورنال: مهندسی دریا 2007
طالب پور, رضا, عابدی, کریم, مصطفی قره باغی, احمدرضا,

In the design of marine pipelines, like other thin-walled structures, structural stability plays major role. Generally, two kinds of instabilities, namely global buckling and local buckling (collapse) may occur in marine pipelines. However, for deep water pipelines in addition to occurrence of collapse, another concern is the potential occurrence of propagating of this collapse along the pipe d...

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