The structural analysis of the mechanisms is a well known process and various techniques are being used in order to understand different types of structures. However, the complex mechanical mobile systems used in our days create difficulties when are being analyzed using conventional methods due to the increased number of components and features. These types of structures can be found in the modern hospital beds having their roots in the beginning of the 20th century when Willis Dew Gatch, chair of the Department of Surgery at the Indiana University School of Medicine, invented the modern 3-segment adjustable hospital bed, sometimes referred to as the Gatch Bed [1]. Over the past decades different simulation software has been developed and they represent a great aid to the modern engineering.

In order to achieve more tests of the same helical toothed wheel, in this paper is proposed a model of researching, which is based on a new conception of the testing stand. The model assumes distinct tests for the each tooth of wheel, by rotating the wheel around its axis with an angle corresponding to one tooth meshing. In this way is providing a smarter usage of the wheel, because the number of teeth becomes the possible testing number. This number can increase when only one side, addendum or dedendum, of the tooth flank could become important for tests. Thus, by decrease the rotation angle of toothed wheel, the area tested is restricted. Testing stand designing is accomplished by SolidWorks simulation platform.

The paper presents an intermediary step in achieving an arm exoskeleton meant to work outer space. The paper describes the step of selecting an actuation system, following a previous stage of mechanical design. The study provided an electro-magnetic brake assembly for rotation actuation and a double acting pneumatic cylinder for the linear actuation.

The purpose of this study is to present the design and simulation results of an eye system which will be used in the structure of a robotic head. The eyes are necessary to create facial expressions, to enable eye-gaze based interaction or to be used as an active vision system, if they are equipped with small cameras. Also, some mathematical models of the eye mechanisms will be highlighted.

The paper presents a new structure of 6-DOF spatial manipulator with three parallel kinematic chains. Each parallel kinematic chain is a spatial pentalateral with two active mobilities achieved by means of electric motors and worm drives. Based on the new kinematic scheme, a mechanism mock-up having an adequate constructive solution has been accomplished. This constructive solution can be used in reverse position as entertainment device in the amusement parks. The paper deals with both the structural-topological analysis and the direct and reverse kinematic analyses of the new proposed solution of the 6-DOF parallel manipulator.

The paper deals with a planar mechanism consisting of articulated bars. The linkage is used to unfold a reconfigurable mechanism. Starting from the constructive scheme of the mechanism, the kinematic scheme is drawn in three distinct positions (folded, middle and unfolded). By means of this scheme the mobility of the mechanism is calculated and the structural-topological formula of it is obtained. In the last section of the paper an algorithm of geometric calculus has been elaborated, starting from a kinematic element articulated to the base, element which is considered the driving component.

Between 14 – 15.06.2013, the Electrical Engineering, Electronics and Information Technology Faculty, of "Valahia" University of Targoviste, together with Robotics Society of Romania, Targoviste subsidiary and the Students League had organized, in the hall of the faculty, the VIth edition of the Professional Contest "ROBOTS IN ACTION".

Human rehabilitation systems will fulfill human locomotion tasks, when these are properly considered at kinematics and dynamics design stages. An analysis of human locomotion has a major influence on locomotion rehabilitation systems. The aim of this work is to characterize biped locomotion and its influence on design stage of human exoskeleton with low-cost and easy-operation features.

In this paper, the conceptual design and the mathematical model of a gravity compensation mechanism used for the neck of a robotic had is presented. We start with with a brief description on the conceptual design of the neck. Then a mathematical model of the robot neck is presented and the last part highlights some numerical simulation.

Within the human body one of the most important parameters of motion is the amplitude of angular movement. This paper reviews the existing angular sensors listed in the scientific literature, which are currently or could be used in rehabilitation engineering, physiotherapeutics or sport biomechanical evaluation.

This paper contains some theoretical and practical contributions regarding the manager’s professional development demands, a continuous process resulted from changes, which in their turn demand the manager’s adapting to a management style and the managerial instrument to the situation of the present economic reality based on knowledge. These considerations have led to the identification of a few objections and proposals regarding this problem on three different plans, which are: an increase of the manager’s activity efficiency, the identification of management consulting and the perfecting of managerial research methodology.

The paper presents the analysis from a structural point of view of a kinematic joint driven by an actuator with intelligent materials, used in the construction of industrial robots, pursuing the determination of the mobility degree and the checking of desmodromy. By using these types of mechanisms, it is aimed to achieve some simple, compact, reliable, dynamic balanced constructions which ensure high positional precision, low consumption of energy, reduced mold and weight by eliminating the operation by electric, pneumatic, hydraulic, electromagnetic motors.

This paper presents succint one method for to obtain the most possible structures with 7 or 8 axes, which correspond to non-degenerate workspaces of which one can choose other variants than existing ones, to be manufactured. For one version with 8 axes is made the kinematic analysis based on the method of homogeneous operators and this exemplifies the possibility to resolve this issue in the case of these redundant robots.

The aim of these automation activities is automation of the activities involving the implementation of a system for controlling a process, working with available equipment similar to those used in practice for industrial processes. The objectives of this paper are: understanding the functioning of the production system, acquiring knowledge about the programmable automation (PLC) from Siemens class, achieving a process control applications on a Festo stand using a PLC Siemens S7-300, CPU 313C.