A study concerning the children locomotion system is presented through this research. The research aim is to obtain the motion laws developed by the children locomotion system’s articulations and connection forces which are produced in their structure in the walking activity. These parameters are useful for orthotic and prosthetic systems design for children with ages between 4-7 years. The study is based on an experimental analysis developed with ultra highspeed video equipment on 20 children and a dynamic analysis achieved on analytical way by using the results obtained from the experimental analysis. A new knee modular orthosis and a parameterized lower limb are designed through this research.

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Категория: Научные статьи | Нет комментариев »

Из-за того что власти настаивают на ‘осторожном’ подходе, современное общество крайне медленно поворачивается к людям с ограниченными физическими возможностями. В Японии приблизительно каждый 20-й человек имеет те или иные ограничения в дееспособности.

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Категория: HAL 3, Продвижение | Нет комментариев »

Системы расширения человеческих возможностей – технологии, позволяющие умножить силу и выносливость человека, или дающие возможность восстановить функции, утраченные из-за болезни или несчастного случая – уже давно стали неотъемлемой частью научной фантастики.

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Категория: HULC, Продвижение | 1 Комментарий »

Здесь представлен обзор дипломной работы «Проект комплекта оборудования для сварочных работ на основе экзоскелета, для работ в экстремальный условиях» созданной Орловым Ильёй на кафедре «Дизайн» Гуманитарного факультета, Тульского Государственного университета.

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Категория: Дизайн проекты | 184 комментария »

The foot-ground contact force is one of the important factors affecting the gait behaviour, balance and safety of a bipedal robotic mechanism. This force is constrained by the coefficient of friction of the foot-ground contact. This coefficient of friction is thus of high importance, as non-sliding contact and/or the knowledge of the coefficient of friction of the foot-ground contact are common assumptions among bipedal robotics literature. Failure to keep the ratio of the fric-tion force to normal force of the foot-ground contact below the coefficient of friction causes the foot to slip, resulting in a large external disturbance being applied to the biped and causing the bipedal robot to lose balance and fall. In this work an online estimation technique for estimating the coefficient of friction of the foot-ground contact is developed. It is expected that the estimation algorithm converges to the value of the coefficient of friction of the contact before the ratio of the friction and normal forces exceeds the coefficient of friction, thus allowing the robot control strategy to avoid slipping altogether by altering the forces exerted by the robot actuation. The proposed estimator is validated experimentally using real-world materials. The estimator is shown to be able to determine the coefficient of friction of the materials ahead of the applied force ratio exceeding the coefficient of friction. Finally a 6-link bipedal robot is modelled and a slip prevention algorithm based on the estimator is implemented to illustrate how a bipedal robot would be able to avoid slipping while walking on a surface of unknown coefficient of friction. The bipedal gait is achieved using a previously developed control algorithm and walks on two flat surfaces of unknown coefficients of friction under ideal simulated conditions. The resulting simulations are compared to demonstrate the effectiveness of the proposed approach. The bipedal robot is shown to be able to walk on a surface of coefficient of friction of 0.4 without slipping and without prior knowledge of this value.

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Категория: Научные статьи | Нет комментариев »