Căutare 1995-2015 după Titlu
Afișează articolele 284-303 of 326
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The Grinding Charge of Rotary Mills
(Universitatea "dunărea de Jos" din Galați, 2007)This paper presents the achievemens of grinding charge for the tube mills with balls.The author shows charactheristic size of grinding media charge: bulk density, porosity, filling degree. Regarding this last size,the author ... -
The Idenfication (In Simulink) of an Elastic
(Universitatea "Dunărea de Jos" din Galați, 2007)In this paper is realized the identification of an elastic system with one degree of freedom, for which we experimentally pick up (in SIMULINK) the resonance curve. The system parameters (m, c, k) are determined using ... -
The Impact of Occupational Noise on the Workers. Romanian and EU Legislation
(Universitatea "Dunărea de Jos" din Galați, 2007)Noise is most obviously a problem in industries such as manufacturing, mining and construction but it can also be an issue in a wide range of other working environments like energy, transports, call centers, schools, orchestra ... -
The Impact of the Technological Equipment Vibration on the Environment
(Universitatea "Dunărea de Jos" din Galați, 2007)The shocks & vibrations generated by the operation of such tools, are conveyed to the foundation environment affecting both the near – by building safety and the comfort of the unit personnel and of the surrounding ... -
The Impulsive Loading Influence on Dynamic Response Parameters of the Viaduct Type Structure
(Universitatea "Dunărea de Jos" din Galați, 2011)Bridges and viaducts are vital structures ensuring ways of communication, so they must be protected from dynamic loads from traffic or seismic activity. For this reason are embedded in their structure dynamic isolation systems ... -
The Inclusion in the Calculation Schemws for Numerical Simulation of the Pressures Drop on Inlet and Outlet of Hydraulic circuits
(Universitatea "Dunărea de Jos" din Galați, 2014)Numerical simulation of the operation of hydraulic systems acting on hydraulic cylinderst is based on differential equations that describe the equilibrium of forces and the continuity of the flow rate. To simplify ... -
The Influence of Nonlinear Behavior of Viscous-Elastic Element on Equipment Foundation with Dynamical Apply Stresses
(Universitatea "Dunărea de Jos" din Galaţi, 2006)This paper presents a dynamical analyze on the foundation of machine when are apply stresses such the beat (percussion) in nonlinear behavior of the viscous-elastic elements hypothesis. In this way can be evaluate (more ... -
The Influence of Nonlinear the Elastic Character of Viscoelastic Systems on the Dynamic Response of Mechanical Systems
(Universitatea "Dunărea de Jos" din Galați, 2010)Bridges and viaducts represent vital engineering structures which are component of terrestrial communication lines, therefore reducing their exposure to factor originating from natural or anthropogenic hazards has no ... -
The Influence of the Hydraulic Fluid Compressibility on the Tematics of Mechanisms Actuated with Hydraulic Cylinders
(Universitatea "Dunărea de Jos" din Galați, 2015)the description of the kinematics of mechanisms driven by hydraulic cylinders, hydraulic agent is usually considered incompressible. This computing hypothesis introduces errors which, in certain situations, can not be ... -
The influence of the Rolling track on the Dynamic Comportment of the equipement on tyres
(Universitatea "Dunărea de Jos" din Galați, 2005)The paper presents aspects connected to the comportment of the vehicle on wheels which moves on dislevement soil. A complete dynamic model is realized for a vehicle on wheels with tyres, which wheels are rigidly tied to ... -
The Mechanical Low Frequency Signal Reconstruction by it's Spectral Components
(Universitatea "Dunărea de Jos" din Galați, 2007)This paper is a point of view of a new way of signal reconstruction through it’s spectral components. Sampling theory is analyzed from different perspectives, what means if for technical reasons the time can’t be sampled ... -
The Method for Remote Control of a Mechatronic System, Based on a Bluetooth Module
(Universitatea "Dunărea de Jos" din Galați, 2015)The paper presents a mechatronic system programmed and controlled by a PLC. The mechanical structure consists of a Dc motor and pneumatic actuators. The Control from short distance is necessary in many industrial appl ... -
The Model of the Forging Hammers Like System with three Degree of Freedom
(Universitatea "Dunărea de Jos" din Galați, 2004)Forging hammers cause very high vibration levels, so vibration control is advisablein nearly all cases. For this reason, in present exist recearch with the object of to decrease and eliminate the shocks and vibration ... -
The Noise at Work and the Professional Diseases
(Universitatea "Dunărea de Jos" din Galați, 2007)This article describes the effects of workplace noise and outlines the main steps that should be taken to reduce and control noise at work. Exposure to noise at work can harm workers’ health. The most wellknown effect ... -
The Nonlinear Behavior Identification of the Dynamic Insulation Systems Used in Viaduct Structure
(Universitatea "Dunărea de Jos" din Galați, 2012)Because of the destructive effects of seismic movements on bridges and viaducts, it was required to embed the structure of seismic devices with the role of maintaining structural integrity and post-seismic functionalit ... -
The Numerical Pretend of Behavior in a impermanent system of Slow Hydrostatical Motive with Radial Pistons and Multiperiodics Sinusoidal Cams
(Universitatea "Dunărea de Jos" din Galați, 2006)The work is approaching theoretical and experimental appearances in concerning static and dynamic characteristics of slow hydrostatical motive with radial pistons. Is presented the static model of characteristics of flow ... -
The Operational Space's Micro-Geometrical Analysis of the R I R II Kinematics Chain
(Universitatea "Dunărea de Jos" din Galați, 2009)In order to systematize the three monomobile coupling kinematic chains was essential to find criteria which eliminate those coupling which are inefficient, from the mobility point of view. It is embraced, as main ... -
The Parametrical Free Vibrations of Elastic Systems, the Analytical Exact Solutions
(Universitatea "Dunărea de Jos" din Galați, 2012)The movements of many material systems can be described by differential equations that have coefficients that depend on time. It is difficult to determine the solutions of these equations. Although many concrete problems ... -
The Possibilities of Increasing Efficiency and Confidence of the Calculations for Hydraulic Cylinders Provided with Cushioning System at System at end of Race
(Universitatea "Dunărea de Jos" din Galați, 2012)Working with specialized software, fluid flow analysis has the disadvantage of being time-consuming. Also, modern computers are needed. This paper presents a way of combining simulation with specialized programs of ... -
The Power Balance During Cushioning for Hydraulic Cylinders
(Universitatea "Dunărea de Jos" din Galați, 2011)Cylinder hydraulic brake systems to stop the stroke are built with moving parts to reduce the impact intensity. For correct sizing of hydraulic cylinder cushioning system it is necessary to know how components participate ...
