Educational environment has faced and continues to face a lack of personnel, especially in fields activity difficult be understood like mathematics or physics. For this reason, schools are required teach their students classes with more students, being for teachers explain exercise every student individually. This involves blocking the during class both teacher other students. better understanding, all science courses, usually spend multiple hours on same subject, at time. After completing...

The article aims to present a complex mechatronic system for Agriculture 4.0 - Automatic Autonomous Monitoring and Decision System (SAAMDA) potato or vineyard crops. If the implementation of monitoring systems using aerial drones equipped with specialized near-infrared (NIR) inspection are already part specific themes current technological revolution, solution proposed by authors is develop an automated decision system, relatively inexpensive, through customized (particular Unmanned Aerial...

The paper focuses on hyper-redundant arms with continuum elements that perform the grasping function by coiling. First, there is concern dynamic model of arm for position control during non-contact operations environment. A frequency stability criterion based Kahman - Yakubovich Popov Lemma and P PD algorithms proposed. Then, in contact a load analyzed. dynamics system are discussed an extension endorsed. SMA actuators introduced. Numerical simulations experimental results motion toward...

For people with amputated lower limbs, it is imperative to make high-performance prostheses that reproduce, as accurately possible, the functions of limb. In this case, a preliminary study limbs from kinematic and dynamic point view necessary. This paper proposes prosthesis design system for acquiring information needed determine stepping phase parameters legs. consists sensory attached legs acquisition data unit built around microcontroller. The based on determining weight distribution...

Abstract In this paper, we are presenting the results of research based on dynamic simulation human knee virtual model. Starting from parts realized with computer tomography help, there were models for femur, tibia, meniscus and ligaments that form complex joint, their discretisation in finites elements. There raised tension deformation diagrams subjected to different stresses. presented comparative tensions, deformations deforming energy normal meniscus, and, respectively, totally cut a...

The control problem of the spatial tentacle manipulator with SMA is presented. difficulties determined by complexity nonlinear integral-differential equations are avoided using a very basic energy relationship this system. A PD controller discussed and coefficient selection procedure introduced. Numerical simulations for planar models presented an experimental model discussed.

Due to their unique properties and behavior, the Shape Memory Alloys (SMAs) play an increasingly important role in intelligent systems performance. Recent applications structural actuation sensing demand increased material capabilities. This paper reviews main advantages of SMAs presents design strategy for a typical shape memory actuator configuration systems, using as active element Ni-Ti SMA spring working against conventional steel spring. It also includes thermal analysis...

The control problem of a class hyper-redundant arms with continuum elements, boundary measuring and is discussed. First, the dynamic model arm presented. systems are based on film sensors that placed at terminal sub-regions arm. observers proposed in order to reconstruct full state A back-stepping method used design algorithm. Numerical simulations motion toward an imposed position An experimental platform shows effectiveness methods.

The unique properties (e.g. Shape memory effects) exhibited by shape alloys (SMAs) offer the possibility of producing Smart Sun Tracking Mechanisms (SSTMs) for photovoltaic panels. paper presents an experimental model active solar panel tracking system, conceived authors. This uses SMA springs as actuators. work linear actuators contracting with great strength and speed when heated. attached to this structure can be activated accurately change position panel, following, way, motion sun...

This paper presents a fuzzy logic controller for shape memory alloy (SMA) tentacle robotic structure. A manipulator is with great flexibility and distributed mass torque that can take any arbitrary shape. Technologically, such systems be obtained by using cellular structure each element of the arm. In first part paper, mathematical model single unit SMA actuator conventional PI are presented. Secondly, proposed module described. final part, developed applied to The control strategy based on...

The paper presents the mathematical model of a walking robot where active pair legs has three free joints. is determined considering systemic approach as Variable Causality Dynamic Systems (VCDS). Taking into account possible symmetrical structure, only vertical xz-plane evolution considered. results can be extended to three-dimensional space. best on variable dynamic systems, that each leg change state depending causality order. It considered first both joints and second joint free....

This paper analyses the communications and social structure of whale pods tries to apply their principles on cooperative robot structures which can be guided perform a certain task. The communication patterns are presented at first in order define real, natural phenomena then translated through robotic structures. Whale has suffered modifications latter years mostly because increase noise ocean. Problems regarding between chosen for modelling behavior solved by data fusion techniques. In...

The VirtuSphere system is one of the most advanced immersion systems. use this in military applications, games, education, due both to its omnidirectional capabilities extremely useful implementing virtual reality but also low price. authors have proposed improve immersive capability by coupling a mechatronic assembly that allows implementation soil resistance user stepping along with possibility simulating situations may occur relative sensation contact earth: vibrations varying intensity...

Training operators for activities ran on automotive manufacturing lines is a long, thorough and laborious process that aims to generate correct collection of information actions as well adequate staff training. Schooling has always been costly; therefore, developing an application will facilitate learning the necessary skills. The time until operator become productive be significantly shorter exposure certain risks also removed. Learning can monitorized each operator, keeping track his...