2011 fascicula14 nr1
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Algorithms for Objects' Shape Recognition and Measurement Before Gripping
(Universitatea "Dunărea de Jos" din Galați, 2011)The paper proposes an algorithmic methodology to solve a necessary first step, namely visualization, recognition and measurement of objects, for gripping, in particular by means of anthropomorphic grippers for robots. ... -
A Combined Method for Dimensioning Mechanisms Operated with Hydraulic Cylinders
(Universitatea "Dunărea de Jos" din Galați, 2011)This paper presents a method of synthesis of a mechanism used in ship steering systems. The case examines the use of force as elements of hydraulic differential cylinders articulated at both ends. Sizing the difficulty ... -
Methods for Generating Mesh Surfaces Using CAD Systems
(Universitatea "Dunărea de Jos" din Galați, 2011)One of the most popular graphic software in CAD systems is AutoCAD that is used frequently by a very great number of users thanks to its numerous advantages. In this paper we present several methods to create mesh surfaces ... -
Considerations Regarding the Stability of High-Speed Shafts
(Universitatea "Dunărea de Jos" din Galați, 2011)The paper studies the problem of the dynamic stability of a high-speed shaft, subjected to bending vibrations. The case of normal machine tool shafts placed on rigid or flexible bearings is considered for different situations. ... -
Dynamic Calculation of the Mechanical Transmissions with Gears and Elastic Shafts
(Universitatea "Dunărea de Jos" din Galați, 2011)This study presents the elaboration of the physical and mathematical dynamic models of the mechanical systems with elastic shafts and discrete mass elements subjected to dynamical loads, taking into consideration ... -
Modal Damping Ratio Calculation for Finited of Mechanical Systems with Viscous Elastic Bearings Using Virtual Instrumentation
(Universitatea "Dunărea de Jos" din Galați, 2011)This paper proposes an approach of a finite DOF dynamic model for the rigid-solid with multiple neoprene apparatus bearings modeled as viscous elastic dampers. After a short presentation of the physical model of the solid ... -
The Role of Reinforcement Learning Business Integrated Manufacturing
(Universitatea "Dunărea de Jos" din Galați, 2011)Reinforcement learning (RL) has received some attention in recent years from researchers, because it deals with the problem of how an autonomous manufacturing system can learn to select proper actions for achieving its ... -
About the Hysteresis-Loop of the Mechanical Oscillators
(Universitaea "Dunărea de Jos" din Galați, 2011)The work presents firstly the representation of the typical Hysteresis-loop as function between the indoor forces of the oscillator as friction and elastic forces dependant on displacement and, otherwise, as function between ... -
Processsing and Analyzing Object Images With the view of Object Grasping
(Universitatea "Dunărea de Jos" din Galați, 2011)This paper presents a solution based on image processing techniques used for analyzing images of objects which will be grasped, using existing software technologies completed with specific software modules. Digital image ... -
Seismic Base Isolation of Structures Using Frictuon Pendulum Bearings
(Universitatea 'Dunărea de Jos" din Galați, 2011)Base isolation systems have become a significant element to enhance reliability during an earthquake. One type of base isolation system is Friction Pendulum Bearing in which the superstructure is isolated from the foundation ... -
Damage Detection at Vibration Passive Isolation Devices
(Universitatea "Dunărea de Jos" din Galați, 2011)This paper deals with some theoretical aspects combined with experimental tests regarding early damage identification in vibroisolation devices. This study was a natural fall-back of an analysis regarding the behaviour ... -
Structural and Kinematic Analysis of Planetary Gearings
(Universitatea "Dunărea de Jos" din Galați, 2011)By bounding two or more gearings, using a role bear-axle element, we can obtain simple transmissions with caged wheels. A transmission with gear wheels generally has, an axle of fixed rotation, called main axle. The gear ... -
The Analysis of the CAM Mechanisms Using Matrix Calculations
(Universitatea "Dunărea de Jos" din Galați, 2011)The present study presents the kinematic analysis of a mechanical structure created by cam mechanism RR-CC. It was determined the position, velocity and angular acceleration of the tapped, as depending on the position ... -
Influence of the Behavior of Nonlinear viscoelastic Systems Bearing on the Dynamic of Bridge Structures
(Unioversitatea "Dunărea de Jos' dibn Galati, 2011)Modern structures of bridges and viaducts require dynamic isolation systems, designed to eliminate or mitigate the destructive effects of intense traffic and seismic activity on these constructions. This paper studies ... -
Project Management and Engineering Issues
(Universitatea "Dunărea de Jos" din Galați, 2011)Starting with some attributes specific to a project manager’s work, the paper presents the functions which must be performed by a project leader – planning, organizing, staffing, directing, motivating, leading – and makes ... -
Optimized Method for Synthesis of a Mechanism for Controlling a Hydraulic Operated Machine
(Universitatea "Dunărea de Jos" din Galați, 2011)This paper presents how can be design a mechanism capable of self command. It is intended as a high uniformity of the way of action, so that external control is as safe and simple. Are taken into account the concrete conditions ...
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