Căutare după Autor "43be9249-eca8-40a5-846c-6acb798c147a"
Afișează articolele 1-12 of 12
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About Dynamic Stability Analysis of the Power Regulators With Exactly Hyperbolic Characteristic
Gavril, Axinti; Năstac, Silviu; Debeleac, Carmen; Axinti, Adrian-Sorin (Universitatea "Dunărea de Jos" din Galați, 2003)Power regulators are attached devices of hydraulic pumps with variable capacity. Theses have the means to modify the pump capacity depending of the pressure from the circuit served by the pump. In this way, it result ... -
Analitical evaluation of the Dynamic Performances for the Wheel Loader Analysis
Debeleac, Carmen (Universitatea "Dunărea de Jos" din Galați, 2004)In this paper the author propose a physical and mathematical model, useful to analyse the dynamic performances of the wheel loader equipment. It supposed that the evaluation of the natural frequencies constitute a well ... -
Comparative Analysis Between Operational Performances of Motor Grader Equipments
Debeleac, Carmen; Năstac, Silviu (Universitatea "Dunărea de Jos" din Galați, 2012)This paper generally deals with technological equipments for construction and agricultural works, and evaluated the operational performances for motor-grader equipments. Starting from a large review of modern ... -
Measuring and Controlling of Noises and Vibrations Generated by Industrial Sources
Drăgan, Nicușor; Debeleac, Carmen (Universitatea "Dunărea de Jos" din Galați, 2008)This paper describes a methodology for measuring and control of noises and vibrations generated by industrial sources, such as: construction activities, equipments which use vibrations into working process, etc. ... -
On Dynamics of Bucket Wheel Excavators with Radial Digging
Debeleac, Carmen (Universitatea "Dunărea de Jos" din Galați, 2013-10-01)The paper presents the influence of some structural and operating parameters on external load characteristics caused by resistances to reclaiming at bucket wheel in the radial digging process. -
On the Efficiency of Compacting Equipment
Debeleac, Carmen (Universitatea "Dunărea de Jos" din Galați, 2010)In this paper, the efficiency of vibratory rammer during compaction is examined. A three-degree-of-freedom model has been established for analytical representation of the soil-rammer interaction. In the first approach, it ... -
On the Rheological Behaviour of the soil in the Artificial Compacting Process
Oproescu, Gheorghe; Debeleac, Carmen; Leopa, Adrian; Năstac, Silviu-Marian (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 ... -
Performances Assessment from an Earthmoving Machine Through Power Monitoring
Debeleac, Carmen (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 ... -
Study of The Palette-Obstacle Impact for a Concrete Mixer
Debeleac, Carmen (Universitatea "Dunărea de Jos" din Galați, 2013-05-01)In this paper the numerical simulation of the concrete mixer was developed in SimMechanics, a toolbox for Matlab environment. The virtual model for mixing equipment simulation has been computed to estimate the increase ... -
The Character of the Dynamic Processes in the Proportional Servodriving Systems of the Hydraulic Pumps Capacity
Gavril, Axinti; Năstac, Silviu; Axinti, Adrian-Sorin; Debeleac, Carmen (Universitatea "Dunărea de Jos" din Galați, 2003)The proportional servodriving systems of hydraulics pump capacity are used in many more applications in tehnological equipments driving. Thus, the construction of specialized pumping hydraulics units, like the A10VG and ... -
The Dynamics Analysis of the Forced Steady-State for the Vertical Towers Chillers with Internal Axial Flow Fan
Drăgan, Nicușor; Debeleac, Carmen (Universitatea "dunărea de Jos" din Galați, 2003)This study presents some of the phases of the physical and mathematical models' elaboration of the vertical tower chillers with a single axial flow fan, which are used in social and civil buildings to prepare conditioning air ... -
Theoretichal Considerations about the Maximum Vibration Limits for Wheel Loader Affected by the Ground Conditions
Debeleac, Carmen (Universitatea "Dunarea de Jos" din Galaţi, 2003)In this paper, the author make a study of vibration (vertical acceleration) into wheel loader who is affected by the ground conditions. It is known from many studies and investigations, that the drive vibrations are ...