Scientific papers - Annals of "Dunarea de Jos" University of Galati - Analele științifice ale Universității "Dunărea de Jos" din Galați: Recent submissions
Afișează articolele 701-720 of 1845
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Upon Radial Fretting of Dissimilar Materials
(Universitatea ”Dunărea de Jos” din Galați, 2006)The paper presents a state of the art concerning radial fretting for dissimilar bodies and fretting damage. Four simple fretting models are defined in the literature: tangential, radial, rotational and torsional. Only the ... -
Failure of a Total Knee Prosthesis Tibial Tray Due to the Fatigue Wear
(Universitatea ”Dunărea de Jos” din Galați, 2006)Some studies report the failure of a tibial insert of knee prostheses due to the subsurface cracking and delamination wear [1]. The present study starts by analysing retrieved total knee prosthesis revealing the loss of a ... -
Comparative Study Between the Computerized Design and the Classical One
(Universitatea "Dunărea de Jos" din Galați, 2009)Through this paper the author demonstrates the indisputable advantages of parameter assigned design which through its own features provides the possibility of automatically obtaining technical drawings including the ... -
Specific Aspects of Modelling and Designing Gear Pumps
(Universitatea "Dunărea de Jos" din Galați, 2009)The paper intends to highlight, in the context of general geometrical modelling, the specific aspects of design and modelling of a gear pump. In practice in such situations containing toothed gear it is recommended to ... -
Econometric Modelling of the Manufactoring System
(Universitatea "Dunărea de Jos" din Galați, 2009)According to this new approach, a machining system interacts with the “market” carrying out a certain “service” (machining “service”) for a specified “client” (the work piece), it establishes a full economic relationship ... -
Creating of the Primitive Shapes Using Autocad
(Universitatea "Dunărea de Jos" din Galați, 2009)AutoCAD is one of the most popular graphics programs that was created for the production of technical drawings in the 2d and 3d with a high precision. In this paper we have presented the basic primitives which can be ... -
Development of the Multipuiose Thermal Spraying System
(Universitatea "Dunărea de Jos" din Galați, 2009)Many components and structures require protection against corrosion, oxidization, excessive heat and wear. This is achieved by applying various types of coatings on the component base material, hence providing the necessary ... -
Modelling of an Ancient Bronze Suspension head by Means of Reverse Engineering Technique
(Universitatea 'Dunărea de Jos" din Galați, 2009)In recent years, reverse engineering technique is used in the field of archaeology to model the geometry of archaeological findings. Modelling of ancient objects is a demanding process due to fragility. In this paper ... -
Performances Assessment from an Earthmoving Machine Through Power Monitoring
(Universitatea "Dunărea de Jos" din Galați, 2009)The research presented in this paper focuses on wheel loaders, which are representative for earthmoving machines. The author presents the acquired results for measuring dynamical performances by using a new method based ... -
The Technical-Economic Modelling of Competitiveness for Manufacturing Systems
(Universitatea "Dunărea de Jos" din Galați, 2009)On world wide level, enterprises are confronted with an evermore accelerated dynamics and the unpredictable changes. This is influenced by the technical and scientific progress, dynamic requirements of the customers, ... -
Manufacturing System Strategic Control
(Universitatea "Dunărea de jos" din Galați, 2009)In order to progress in the present-day complex and unpredictable environment, the company must feature abilities of quick response and favorably repositioning itself on the market. Acquisition and preservation of this ... -
About the Vibrations of the Mechanical Systems with Non-Linear Damping
(Universitatea "Dunarea de Jos" din Galați, 2009)This work will analyze the non-linear vibrations of the mechanical systems, actually the ones with non-linear damping. If we consider damping F( x,x ) x( k k x );k1,k2 R 2 = − 1 − 2 Î & & & then the differential ... -
Periodic Solutions of Some Differential Equations that Show the Non-Linear Vibrations of the Mechanical Systems
(Universitatea "Dunarea de Jos" din Galați, 2009)Many phenomenons of mechanical nature possess non-linear vibrations, their mathematical forming operation leading to differential equations or to systems of differential non-linear equations. In this work it is shown ... -
A parametric Study on Position Workspace Capability of Capaman
(Universitatea "Dunărea de Jos" din Galați, 2009)A parametric study of main workspace characteristics is presented to describe CaPaMan capability and to investigate design effects of its parameters. Several numerical evaluations are reported to cover a wide range of ... -
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 ... -
Model and Calculation Algorithms for Gear Percussion
(Universitatea "Dunărea de Jos" din Galați, 2009)The paper highlights some aspects of modeling the dynamic processes taking place in the percussion equipments, known as hydraulic hammers. Theoretical and experimental aspects of the behaviour of equipments on test stand ... -
About Phonic Isolation of the Mobile Equipment Cabin
(Universitatea "Dunărea de Jos" din Galați, 2008)This work presents vibration absorbing and damping solutions for operator cabin on construction equipment. Hereby, the operator cabin has to be considered accordingly. Vibration proof and sound proof materials applied ... -
Determination of Epoxy Resin' Mechanical Properties by Experimental-Computational Procedures in Tension
(Universitatea "Dunărea de Jos" din Galați, 2008)The use of epoxy resins in metal structures for adhesive reasons is getting wider. Epoxy resins possess enhanced mechanical, chemical and physical properties, i.e. increased shear and compression strength, resistance in ... -
On the Rheological Behaviour of the soil in the Artificial Compacting Process
(Universitatea "Dunărea de Jos" din Galați, 2008)The artificial compacting of the soil is made mostly with machines with dynamical action such as vibrating plate, vibrating beater or vibrating drum. Their effect on the compacting process of the soil has two origins: the ... -
A Method of Assessing the Stress in some Components of Hydraulic Cylinders
(Universitatea "Dunărea de Jos" din Galați, 2008)This paper proposes a method for evaluating the stress of the unit body of the hydraulic cylinder and the rod which was at work and the Hydraulic Brake at the end of the race. The paper analyzes the situation in which ...
