Căutare 2009 fascicula14 după Titlu
Afișează articolele 1-20 of 22
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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 ... -
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 ... -
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 ... -
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 ... -
Development of the Multipurpose 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 ... -
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 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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
Some Considerations of using Virtual Reality in the Training Process Specific to Disciplines of Applied Mechanics
(Universitatea "Dunărea de Jos" din Galați, 2009)In this paper, we first discuss issues regarding the training in mechanical design using CAD software to develop the geometric model of the components, the simulation possibilities of functioning in the case of the model ... -
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 ... -
A Study on Stevens' Power Law Applied on the Human Perception of a Running Vehicle Transmitted Vibrations
(Universitatea "Dunărea de Jos" din Galați, 2009)This paper studies the way humans perceive vibrations induced by a running vehicle, starting from Stevens’ Power Law. The measurable physical magnitude was the acceleration transmitted to the hand-arm system. The ... -
The Boolean Operations with CAD Systems
(Universitatea "Dunărea de Jos" din Galați, 2009)The AutoCAD software is a power computer-aided design (CAD) system that can offers all users of graphics, 2D and 3D objects representation. In this paper, we present the basic Boolean operations that allow adding, ... -
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 ...
