Temat: exoskeleton - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: A kinematic model of a humanoid lower limb exoskeleton with pneumatic actuators
Autorzy:: Głowiński, Sebastian
Ptak, Mariusz
Tematy:: inertial measurement unit
exoskeleton model
kinematic
pneumatic exoskeleton
simulation; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/55622106.pdf Link otwiera się w nowym oknie
Opis:: Although it is well-established that exoskeletons as robots attached to the human body's extremities increase their strength, limited studies presented a computer and mathematical model of a human leg pneumatic exoskeleton based on anthropometric data. Methods: By using Inertial Measurement Units a lower limb joint angles (hip, knee and ankle in sagittal plane) during walking and running were calculated. The geometric model of a human leg pneumatic exoskeleton was presented. Joint angle data acquired during experiments were used in the mathematical model. Results: The position and velocity of exoskeleton actuators in each phase of the movement were calculated using the MATLAB package (Matlab_R2017b, The MathWorks Company, Novi, MI, USA). Conclusions: The obtained results demonstrate the efficiency of the proposed approach that can be utilized to analyze the kinematics of pneumatic exoskeletons using the dedicated design process. The developed mathematical model makes it possible to determine the position of lower limb segments and exoskeleton elements. The proposed model allows for calculating the position of the human leg and actuators' characteristic points.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Structural solutions to be used in exoskeletons of hand fingers
Autorzy:: Maćkowiak, P.
Ligaj, B.
Tematy:: exoskeleton
hand
fingers; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/2073659.pdf Link otwiera się w nowym oknie
Opis:: This study is a presentation of state of the art in the field exoskeletons of hand fingers. Exoskeletons of hand fingers have been characterized on the basis of an analysis of currently existing structural solutions. The goal of this research is to present a new concept of the device being a modification of Shield’s exoskeleton. Despite a large demand for hand exoskeletons the currently available solutions often fail to meet requirements of doctors and patients. Due to many freedom degrees characteristic of a human hand a compromise is necessary between simplicity of the device and the possibility of performing basis grasps.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Multivariate analysis of the kinematics of an upper limb rehabilitation robot
Autorzy:: Sobiech, Mariusz
Michnik, Andrzej
Chuchnowska, Iwona
Karpiel, Ilona
Wolański, Wojciech
Tematy:: rehabilitation robot
therapy
upper limb exoskeleton
kinematic chain of exoskeleton
kinematic analysis; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/55622225.pdf Link otwiera się w nowym oknie
Opis:: The purpose of this work is to present a multivariate analysis of the kinematics of an upper limb rehabilitation robot. Comparing multiple concepts of kinematic chains makes it possible to identify advantages and disadvantages and, as a consequence, choosing the optimal solution to create a physical device. Such actions shall contribute towards automation of the rehabilitation process, bringing benefits to both therapists and patients in comparison with conventional rehabilitation. Methods: Multivariate analysis of kinematics was performed on the basis of three concepts of the kinematic chain of an exoskeleton, enabling the rehabilitation of both right and left upper limb within the area of the shoulder joint, elbow joint and wrist. The kinematic chain allows the performance of simple and complex movements. Results: The results of the conducted multivariate kinematic analysis define specific movements and angular ranges, which may be performed while applying one of the proposed concepts of the robot design. The results made it possible to determine the optimum solution to the kinematic diagram and construction design, which best satisfy the expectations for effective rehabilitation. Conclusions: The analysis of the kinematic diagram concept of the exoskeleton should be done in relation to its design (construction form). Considering the obtained parameters, it is necessary to find an optimum concept and wisely manoeuvre the values, in order to avoid a situation in which one significant parameter influences another, equally important one. It is noteworthy that the introduction of changes into particular segments of the kinematic chain often has a significant impact on other segments.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Light exoskeleton design with topology optimisation and FEM simulations for FFF technology
Autorzy:: Falkowski, Piotr
Tematy:: exoskeleton
rapid prototyping
rehabilitation robotics
topology optimisation; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Powiązania:: https://bibliotekanauki.pl/articles/2141879.pdf Link otwiera się w nowym oknie
Opis:: Among past years interest in robot‐assisted rehabilitation arose significantly; thus, constructions such as exoskele‐ tons are involved in this process much more often. As pa‐ tient’s bio‐signals may be included in a control loop of these devices, they may be also used to support the mo‐ tion of extremities in an everyday life. Therefore, a field of control over them stays a popular research topic. For this reason, an exoskeleton described in a paper was de‐ signed. The most important aim of a project was to ena‐ ble all anatomical movements within ranges required for the lifting of an object while minimising a mass of the device. The following paper consist of a concept of an exoskeleton and description of FEM simulations and to‐ pology optimisation applied to decrease the amount of material needed. Moreover, as an exoskeleton was built with FFF 3‐D printing technology, created parts are mo‐ delled orthotopically based on nominal mechanical para‐ meters of filaments and directions of their beams. The de‐ sign is complemented with a short description of control with EMG signals and analysis of load on a user’s muscu‐ loskeletal system.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Analiza rozwiązań konstrukcyjnych egzoszkieletów palców ręki
Design solution of hand fingers exoskeleton
Autorzy:: Maćkowiak, P.
Ligaj, B.
Tematy:: egzoszkielet
ręka
palce
exoskeleton
hand
fingers; Pokaż więcej
Wydawca:: Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydawnictwo PB
Powiązania:: https://bibliotekanauki.pl/articles/95420.pdf Link otwiera się w nowym oknie
Opis:: W pracy przedstawiono istniejący stan wiedzy dotyczący egzoszkieletów palców ręki. Na podstawie analizy istniejących rozwiązań konstrukcyjnych scharakteryzowano egzoszkielety ręki. Celem pracy jest prezentacja własnej koncepcji urządzenia, będącej modyfikacją egzoszkieletu Shieldsa. Mimo dużego popytu na egzoszkielety ręki, obecne rozwiązania nie spełniają oczekiwań pacjentów i lekarzy. Ze względu na wiele stopni swobody, jakie ma ludzka ręka, konieczny jest kompromis pomiędzy uproszczeniem urządzenia a umożliwieniem wykonania chwytów podstawowych.
This article presents prezent knowledge of a hand exoskeleton. This paper describes characterization of hand exoskeletons based on an analysis of existing design solutions. The aim is to present own concept device, which is a modification of Shields exoskeleton. Despite the high demand for exoskeletons hand, current solutions do not meet the expectations of patients and physicians. The human hand has many degrees of freedom. Therefore, the need is to simplify the design of the device and provide the ability to perform basic hand grips at the same time.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Performance analysis between a hybrid force/position and conventional controllers for a wrist exoskeleton
Autorzy:: Avilés, Valeria
Avilés, Oscar F.
Aponte, Jorge
Caldas, Oscar I.
Mauledoux, Mauricio F.
Tematy:: exoskeleton
hybrid control
force
performance
position; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2134891.pdf Link otwiera się w nowym oknie
Opis:: This study analyses the performances of various path controlling strategies for a 3-degrees of freedom wrist exoskeleton, by comparing key indicators, such as rise time, steady-state error, and implementation difficulty. A model was built to describe both system’s kinematics and dynamics, as well as 3 different controllers (PID, PD+, and a hybrid force/position controller) that were designed to allow each joint to perform smooth motions within anatomic ranges. The corresponding simulation was run and assessed via Matlab (version 2020a). In addition to the performance comparison, remarkable characteristics could be identified among controllers. PD+ showed higher response speed than the other controllers (about 4 times), and PID was reinforced as the technique with the easiest implementation due to the smallest matrices. The study also allowed to greater potential of the hybrid controller to interact with its environment, i.e., the robotic device.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: From the treadmill to the exoskeleton. Evolution of mechanical gait assistance methods
Od bieżni do egzoszkieletów – ewolucja metod mechanicznego wspomagania chodu
Autorzy:: Rojek, Anna
Zwolińska-Mirek, Katarzyna
Oleksy, Łukasz
Cygoń, Krzysztof
Michałek, Adrian
Janiszewska, Natalia
Mika, Anna
Tematy:: Gait
e-education
robot
Exoskeleton
chód
reedukacja
egzoszkielet; Pokaż więcej
Wydawca:: Akademia Wychowania Fizycznego im. Bronisława Czecha w Krakowie
Powiązania:: https://bibliotekanauki.pl/articles/1808040.pdf Link otwiera się w nowym oknie
Opis:: Limited independent walking and the resulting disabilities are a serious issue for a growing group of patients. These patients are often dependent on a wheelchair, or are bedridden until the end of their lives. For this reason, the development of gait re-education methods and devices for mechanical gait assistance are very important elements in maintaining or regaining a high quality of daily and social life. New technologies allow for the construction of devices that support the rehabilitation process, which reduce the workload of therapists and ensure the best execution of the patients’ movement patterns. This paper presents the development of devices used for the mechanical support of gait starting from the simplest ones like treadmills or standing frames, through stationary robots, to the most technologically advanced ones, i.e. exoskeletons. An exoskeleton is a wearable robot which supports, or in some cases, substitutes for the user’s own movements. The first attempts to create such devices were undertaken 40 years ago. This paper discusses their clinical applications and their effectiveness in gait re-education based on the existing scientific evidence. These new technologies in gait re-education are now becoming an integral part of the rehabilitation process.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The evolution of devices and systems supporting rehabilitation of lower limbs
Autorzy:: Olinski, M.
Lewandowski, B.
Gronowicz, A.
Tematy:: kinesitherapy
manipulator
biofeedback
interactivity
exoskeleton
kinezyterapia
egzoszkielet; Pokaż więcej
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Powiązania:: https://bibliotekanauki.pl/articles/264510.pdf Link otwiera się w nowym oknie
Opis:: This paper presents the process of development, as well as examples of devices and systems supporting rehabilitation of the human lower extremities, developed independently over the years in many parts of the world. Particular emphasis was placed on indicating, which major groups of devices supporting kinesitherapy of the lower limbs can be distinguished, what are the important advantages and disadvantages of particular types of solutions, as well as what directions currently dominating in development of rehabilitation systems may be specified. A deeper analysis and comparison of several selected systems was also conducted, resulting in gathering the outcomes in two tables. They focused on a few features of mechanical design, especially the devices’ kinematic structures, and devices’ additional functions associated with, among others, interaction, as well as diagnosis of the limb's state and the progress of rehabilitation.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Projekt egzoszkieletu stawu łokciowego do badań nad sterowaniem
Autorzy:: Stranz, J.
Tematy:: egzoszkielet
orteza
EMG
biomechatronika
exoskeleton
powered orthosis
biomechatronics; Pokaż więcej
Wydawca:: Międzynarodowe Stowarzyszenie na rzecz Robotyki Medycznej
Powiązania:: https://bibliotekanauki.pl/articles/2063917.pdf Link otwiera się w nowym oknie
Opis:: A powered orthosis of an elbow joint was developed. The orthosis, or exoskeleton, can augment movements of human upper limb, working in paralell to its muscles. This technology is being intensively developed in recent years, giving hope to stroke patients, elders, and manual workers. The comparision of available drive units was performed. Special atiention was paid to optimisation with regard to criteria of low mass, dimensions, and device’s cost. The frame was shaped from aluminum profi les. A brushed DC motor has been used for a drive unit, connected to a planetary gear, custom bevel gear, and toothed belt gear. Greater wheel of the belt gear is fixed to a forearm part of the orthosis. The device features: EMG for biceps ant triceps, encoder, strain gauge system, and current sensor, to allow for future research on controlling algorithms. Obtained preliminary results show possibility of eff ective and precise augmentation of human muscles.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: A Comparison of Methods of Controlling the Movement of an Exoskeleton, Supporting Movements of the Upper Limb Using Signals of Muscle Activity and Manual Controls
Porównanie metod sterowania ruchem modelu egzoszkieletu wspomagającego ruchy kończyny górnej wykorzystujących sygnały o aktywności mięśni i manualne urządzenia sterownicze
Autorzy:: Jankowski, Jarosław
Łach, Patrycja
Tematy:: exoskeleton
control method
EMG
joystick
egzoszkielet
metoda sterowania; Pokaż więcej
Wydawca:: Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Powiązania:: https://bibliotekanauki.pl/articles/403520.pdf Link otwiera się w nowym oknie
Opis:: The paper presents the research methodology and the analysis of the results of the comparison test of two methods of controlling the exoskeleton of the upper limb using signals of muscle activity and manual control devices. The results show the advantage of the joystick method over EMG in terms of usability, task execution time, ease of use and comfort.
W pracy przedstawiono metodykę badawczą oraz analizę wyników testu porównania dwóch metod sterowania egzoszkieletem kończyny górnej wykorzystującą sygnały o aktywności mięśni i manualne urządzenia sterownicze. Wyniki pokazują przewagę metody wykorzystującej joystick nad EMG w aspekcie użyteczności, czasu wykonywania zadania, łatwości użytkowania oraz komfortu.
Dostawca treści:: Biblioteka Nauki

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