Fascicula XIV: Recent submissions
Afișează articolele 241-260 of 326
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On the Control of the Element Finite Meshes with Dimension in Arithmetic Progression
(Universitatea "Dunărea de Jos" din Galați, 2012)The purpose of this article is to present the formulae for calculating the parameters defining the finite element meshes with variable dimensions in arithmetical progression along some user defined paths within the ... -
An Analysis of Vibration Transmission to Handlers Trucks
(Universitatea "Dunărea de Jos" din Galați, 2013-05-01)During movement of vehicles, drivers are subjected to vibrations transmitted by the engine, road irregularities, etc. They are extremely harmful for drivers and passengers. In this paper were studied and measured the ... -
Shear Stresses in Beams with Variable Cross Section, Subjected to Non-Uniform Bending
(Universitatea "Dunărea de Jos" din Galați, 2012)The goal of this paper is to present a generalization of the Juravski formula (appropriate for the beams with constant cross section, subjected to non-uniform bending), for the beams with variable cross section. In the ... -
Some Physical Changes in Extra Virgin Rapeseed Oil after the Process
(Universitatea "Dunărea de Jos" din Galaţi, 2013-10-01)The aim of this study is the viscosity’s evolution depending on the temperature and the shear rate and the analysis at the transmittance spectra of the oxidized rapeseed oil. Rapeseed oil was oxidized at the temperatures ... -
Spectrophotometric and Rheological Studies on Oxidized Soybean Oils
(Universitatea "Dunărea de Jos" din Galaţi, 2013-10-01)This paper presents a rheological and spectrophotometric study of oxidized and nonoxidized soybean oils at 100, 110 and 120°C temperatures. The oxidation periods of time were 5 hours and 10 hours. Changes of the oxidized ... -
Experimental Dynamics of a Bridge Deck Isolated with Rolling Pendulum System (RPS)
(Universitatea "Dunărea de Jos" din Galaţi, 2013-10-01)Base isolation of building structures represents the most important technique used worldwide at this moment. An innovative isolation system is presented in this article, whose passive type operating principle is based on ... -
Comparative Modal Analysis of a Rigid Structure with Conservative Insulation
(Universitatea "Dunărea de Jos" din Galaţi, 2013-10-01)This paper deals with dynamics of compact rigid structures with elastic insulation and subjected to various vibratory, shock or seismic actions. It was supposed a simple rigid model with six degrees of freedom, affected ... -
Second Law Analysis of a Furnace for Metal Heating
(Universitatea "Dunărea de Jos" din Galaţi, 2013-10-01)The industry represents an important sector of the final energy consumption and despite the effort made so far, energy saving potential still remains in this sector. This paper presents an example of energy efficiency ... -
Nonlinear Approaches Regarding Mechanical and Thermal Behaviour of Visco-Elastic Vibration on Isolators
(Un, 2013-10-01)Thermal effects inside the vibration elastomeric isolators have usually been neglected and this aspect can leads to certain differences between simulations and experiments. Continuous damping during the working cycle ... -
The Dinamic Response Analysis of the Viaduct Supported on Anti Seismic Systems with Selective Links as Viscoelastic and Dry Friction Type
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)This paper analyzes, on the theoretical level, the dynamic response of a viaduct section, dynamically isolated by systems with a selective type of links with viscoelastic and with dry friction. Evaluation of kinematic ... -
A Method to Increase the Accuracy Of the Mathematical Model Used to Hydraulically Actuated Mechanical Systems
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)In order to achieve mathematical models describing hydraulically driven mechanical systems are taken into account both consumer behavior and characteristics of power sources and hydraulic circuits. The variable resistance ... -
Consideration on 2D Constrains for Drawings Made with Existing Design Software
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)This paper aims at present the author's personal reasons on the set of dimensional constraints existing in each design software, that are designed to achieve certain parametric sketches. In general, constrained ... -
Considerations on Design Controls Intended to Achieve Thin Walled Bodies
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)This paper aims at presenting a comparative study of the "Shell" command / control which generates bodies with thin walls or some equivalent commands to be found in the following design software packages: Mechanical ... -
The 3D Assisted Design and Static Analysis of a New Type of Excavator ARM
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)The paper presents a new constructive solution of excavator arm that allows using the bucket with an increased degree of freedom The assisted design 3D permitted the optimization of execution model, checking the assembly ... -
3D Modeling of a New Type of Vibratory Roller
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)This paper presents the design optimization of a new type of roller vibration with amplitudes varying with software NX 7.5. The 3D modeling has been developed optimizing constructive solution, minimizing implementation ... -
Considerations on the Simplified Numerical Simulation of the Bus Lateral Rollover
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)The numerical simulation using finite element method, of the behavior of buses in case of lateral rollover, requires significant hardware resources and can lead to the numerical models whose resolution may take prohibitively ... -
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 ... -
Resistance Study of the Shell of a Wind Turbine Blade
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)The paper aims at presening a resistance study on the shell of a wind turbine blade and highlights the main forces that act on its surface. Femap program with finite element analysis was used to simulate a linear static ... -
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 ... -
Comparative Study of Advanced Modelling Controls Present in Design Software
(Universitatea "Dunărea de Jos" din Galați, 2012)The paper aims to present a comparative study of "Loft" control command or equivalent controls that are found in the following design software: Mechanical Desktop 6, Inventor 2011, Solid Edge and NX 7.5 SIEMENS v. 20. ...