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Afișează articolele 975-994 of 2993
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Durability of the Layers Deposed with Metal – Ceramic Powders Type CR3 C2 –NICR and High Speed Flame (HVOF)
(UDJG, 2011)The durability of the reconditioned or preventively covered with powders type Cr3 C2 –NiCr product may outrun the performances of the original product and (the original specification, too). Due to the deposit of these ... -
Durabilyty of Friction Pairs With Functionality in Abrasive Randomly Particles
(Universitatea "Dunărea de Jos" din Galaţi, 2007)It is shown that the abrasive particles, which penetrate in the convergent joint of friction pairs, can damage the superficial layer of surfaces. The wear caused by individual particle depends on having both a satisfactory ... -
Dust Emissions from an Integrated Steel Mill in Correlation with Human Exposure and their Adverse Health Effects
(Universitatea "Dunăreade Jos" din Galați, 2013)Many of the metallurgical operations contribute to generation of the dust emissions if these are not properly controlled and managed. The relevant sectors as important sources for airborne dust are: coke oven plant, ... -
Dynamic Analysis of Electro-Hydrodynamic Vibratory Equipment Using Virtual Prototyping Technique
(Universitatea "dunărea de Jos" din Galați, 2004)In this paper the authors analyse the functional behaviour of an electrohydrodynamic vibratory equipment, that could be used to vibro-driving the piles into the powerless soils, to drive a demolition hammer, a.s.o. ... -
Dynamic Analysis of Mechanical Systems. Calculus of the Equivalent Dynamic Forces and Torques
(Universitatea "Dunărea de Jos" din Galați, 2008)This article presents the physical and mathematical models of mechanical systems with elastical and/or rigid elements, subjected to dynamical loads: forces and torques. The aim of the study is to establish some formulas ... -
Dynamic Analyze for the Chassis-Cab System Having Elastic Intermediate Link (Elastic Interface)
(Universitatea "Dunărea de Jos" din Galați, 2004)Among the machinery generating occupational diseases due to the vibrations transmitted to human body the portable hand-held construction equipment such as drill hammers and demolition hammers are classified. In order ... -
Dynamic and Topicality in Romanian Scientific Publishing
(Europlus Galati, 2012-03)Scientific publishing is the destination of research results. Publications are the receivers of “products” resulted from scientific researches, but they are also incentives for researchers due to the provided informational ... -
Dynamic Aspects of Percussion Equipments
(Universitatea "Dunărea de Jos" din Galați, 2009)The paper highlights some aspects of modelling the dynamic processes taking place in the percussion equipments, known as hydraulic hammers. Theoretical and experimental aspects of the behaviour of equipments on test ... -
Dynamic Calculation of the Mechanical Transmissions with Gears and Elastic Shafts
(Universitatea "Dunărea de Jos" din Galați, 2011)This study presents the elaboration of the physical and mathematical dynamic models of the mechanical systems with elastic shafts and discrete mass elements subjected to dynamical loads, taking into consideration ... -
Dynamic Management of Manufacturing Orders
(Universitatea "Dunărea de Jos" din Galați, 2012)A key requirement for the make-to-order (MTO) manufacturing companies to remain competitive is the ability to assess incoming orders in terms of performance and to determine the best orders that they should accept. In ... -
Dynamic Model for a Moving Particle on Technological Rotating Working body of an Agricultural Machine
(Universitatea "Dunărea de Jos" din Galați, 2014)This paper deals with the movement dynamics of a soil particle or a seed on the working body of an agricultural machine having uniform rotational motion. It presents the dynamic equations that describe the instant positions ... -
Dynamic Model for Hydraulic Dissipaters
(Universitatea "Dunărea de Jos" din Galați, 2008)The paper deals with the problem of energy hydraulic dissipaters used as dissipative links for mechanical structures subjected to earthquakes, shocks and vibrations. The authors propose a mathematical model of a hydraulic ... -
Dynamic Models for the Traction System of the Self-Propelled Machines
(Universitatea "Dunărea de Jos" din Galați, 2007)The work presents a classification of traction systems as a function of structure, the systems being classified into: integrally mechanical-tractional systems–STIM, mechanical-hydrostatical tractional -STMH and integrally ... -
Dynamic of Industrial Tractors with THM for Construction
(Universitatea "Dunărea de Jos" din Galaţi, 2003)Traction calculus is done to determine the main parameters of the equipment’ s engine and transmission designed to achieve the performances imposed in exploitation [1, 2, 3]. One of the base problem of the traction ... -
Dynamic Parameter Identification of Robots Using a Neural Net
(Universitatea "Dunărea de Jos" din Galați, 2009)This paper addresses issues of dynamic parameter identification of robot manipulators. A new identification approach with neural network based compensation of uncertain dynamics is proposed. The parameter identification process ... -
Dynamic Response of Ship Hull Composite Laminated Shells to Explosive Pressure
(UDJG, 2010)The paper presents selected results of a study concerning the protective capacity of ship hull structures made of composite materials subjected to an explosion of a spherical charge. The main application of these structures ... -
Dynamic Simulation of the Vibrator Roller - Terrain Interaction Using an Elastoplastic Approach
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)This study deals with the problematic of deep interaction between the terrain and the vibratory drum at the technological process of dynamic compaction. In this paper is briefly presented a theoretical approach of this ... -
Dynamical Characterization Behavior of Machine Foundation whit Percussion Stresses Applied
(Universitatea "Dunărea de Jos" din Galați, 2006)This paper presents a dynamical analyze on the foundation of machine when are apply stresses such the beat (percussion). In this way can be evaluate dynamical response of the structure, in our case foundation of machines, ... -
Dynamical Response Analysis of a System with one Degree of Freedom Stresses by the Different Pulse Excitation Functions
(Univeritatea "Dunărea de Jos" din Galați, 2010)Viscoelastic systems embedded in structures such as bridges are subject to various dynamic loading from traffic. A dynamic study of these structures requires more accurate definition of disturbance function parameters: ... -
Dynamics of Hip Artificial Joints Wear
(Universitatea ”Dunărea de Jos” din Galați, 2008)In the present paper the authors try to evaluate, based on the results obtained from experimental and numerical previous studies, the wear evolution in the components of a Total Hip Prosthesis (THP), during the service ...
