Начиная с июля 2008 года компании Honda, Shinseikai Medical Group и больница Kasumigaseki-Minami (префектура Сайтама) начинают тестирование экспериментальной системы, помогающей при передвижении. Данное устройство спроектировано специально для того, чтобы помогать немолодым людям со слабыми мышцами ног.

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Категория: Walking Assist Device | Нет комментариев »

Помните экзоскелет из фильма «Чужой» или суперкостюм из игры Crysis? Как было ранее опубликовано, уже существует реальный прототип этого устройства — XOS Exoskeleton, творение инженера Стива Джакобсена и его компании Sarcos. Давайте поподробнее рассмотрим это интересное устройство и те новые изменения, которые внесли создатели XOS.

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Категория: DARPA, XOS 2 | Нет комментариев »

Современный солдат берет с собой все большее количество вооружения, систем слежения за врагом и разведки местности, увеличивается количество вычислительных систем, которые информируют бойца о текущей боевой обстановки — расположения своих товарищей, противника и даже мирных жителей.

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Категория: HULC | Нет комментариев »

(EN)In a frame structure of a wearable motion assisting device, a waist section connection mechanism (200) comprises a top end mounting metal fitting (210) fitted and fixed to an upper socket section secured to the waist support section of a waist tightening member (30) and a bottom end mounting metal fitting (220) fitted and fixed to a lower socket section formed at the upper part of the housing of a drive motor. An assembly (250) formed by combining an elastic member (230) with a rigid member (240) is disposed between the top end mounting metal fitting (210) and the bottom end mounting metal fitting (220). The assembly is elastically deformed according to the motions of the waist and the legs of the wearer (12), and supports the weight applied to the waist of the wearer. The assembly (250) of the waist section connection mechanism (200) is the combination of an elastic member (230) formed of an elastic block (260) with elasticity and a rigid member (240) formed by vertically arranging a plurality of metal plates (270) parallel to each other.
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Категория: Патенты | Нет комментариев »

Mathematical models of a biped and quadruped walking are considered. The planar five-link biped consists of a one-link trunk and two identical two-link legs. In the single support motion
swing (phase), the biped has five degrees of freedom and is described by a system of nonlinear ordinary differential equations of the 10th order. These equations are written in a visible matrix form. A seven-link planar biped with massless feet is also considered. In this paper, the swing motion of the biped is assumed a ballistic
(passive) one. There are no active torques in the interlink joints during the single support motion—only the gravity force and ground reaction forces are applied to the biped. The problem of design of ballistic swing motion is reduced to the boundary-value problem for the system of nonlinear differential equations with given initial and final configurations and the duration of the half-step. It is assumed that there is no friction in the interlink joints (note that the friction in the human joints is very small). Therefore, in the ballistic swing motion the complete energy of the system
kinetic energy plus potential one is conserved and the system has the energy integral. Due to this fact some properties of symmetry of ballistic motions are proved. Linearized model can be reduced to the canonical Jordan form. Then the linear boundary-value problem can be solved analytically. Using numerical investigations of the linear model we have animated the biped walking, which occurs “similar” to the human gait: the transferring leg moves over the support, the legs bend with knees forward, and the trunk makes one vibration during one half-step. All these features have not been prescribed beforehand in the statement of the problem. Iteration process is used to solve the nonlinear boundary-value problem. For some cases, several solutions of this nonlinear problem are found numerically. The symmetry properties of the ballistic motions help to find numerically the solutions of this complex nonlinear problem. The ballistic motion is also designed numerically for the three-dimensional biped model and finally degrees of freedom. The double-support phase is assumed an instantaneous one. During this phase there is a collision of the transferring
swing leg and the support. Active impulsive torques are applied in the interlink joints at this instant. These impulsive torques and ground reaction forces are described by delta functions of Dirac. Thus, with this impulsive control, most of the efforts are applied in the double-support phase. Formulas for the energy cost of impulsive control actions have been found. Some problems of optimal distribution of the impulsive actions between the joints are discussed. A planar seven-link model of biped with arms is considered. This model consists of a one-link trunk, two identical one-link arms, and two identical two-link legs with point feet. Ballistic gait of this biped model is studied. The goal of this study is to find the optimal amplitude of the arms swinging, minimizing the energy consumption. We show numerically the existence of the optimal amplitude of the arms swinging. Ballistic walking of a quadruped is investigated too. Three types of quadruped gaits, bound, amble, and trot, are considered. For each kind of the gait, ballistic locomotion is designed and energy consumption is evaluated.

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Категория: Научные статьи | Нет комментариев »