in this project guidance and control of underwater robot, including three engines and propeller attached to it, by fuzzy control has been investigated. fuzzy control is done based on human experience and requiered laws. the robot can also be controlled and guided by the user. this robot may be used in sea or swimming pool environment for finding goal point and locate in desired direction. in ad...

based on dynamic modeling, robust trajectory tracking control of attitude and position of a spherical mobile robot is proposed. in this paper, the spherical robot is composed of a spherical shell and three independent rotors which act as the inner driver mechanism. owing to rolling without slipping assumption, the robot is subjected to two nonholonomic constraints. the state space representatio...

conclusions the use of an achilles tendon allograft provides excellent results in complex distal triceps tendon ruptures. we report the use of a new technique to anchor a distal achilles allograft. introduction the distal triceps tendon rupture is an uncommon injury. the acute treatment is well-defined, but when a delayed diagnosis is made or when a tendon retraction is present the alternatives...

In this research paper, the modeling and control of a tendon-driven, instead joint motors, prosthetic finger that mimics actual human index were deliberated. Firstly, dynamic model is developed based on 3-degree freedom (DOF) articulated robot structure utilizing Lagrange equation. Then, classical sliding mode (CSMC) strategy was implemented to motion. To overcome cons CSMC, such as chattering ...

A new five-finger robot hand (NTU hand) with seventeen degrees of freedom (DOF) is developed in this paper, In contrast to traditional tendon-driven robot, the NTU hand has an uncoupled configuration that each fmger and joint are all individually driven. While all actuators, mechanical parts and sensors are packed on the hand, the size of NTU hand is almost the same as a human hand. Such compac...

Tendon-driven robots, where one or more tendons under tension bend and manipulate a flexible backbone, can improve minimally invasive surgeries involving difficult-to-reach regions in the human body. Planning motions safely within constrained anatomical environments requires accuracy efficiency shape estimation collision checking. Tendon robots that employ arbitrarily-routed achieve complex int...

tthe uncertainty estimation and compensation are challenging problems for the robust control of robot manipulators which are complex systems. this paper presents a novel decentralized model-free robust controller for electrically driven robot manipulators. as a novelty, the proposed controller employs a simple gaussian radial-basis-function network as an uncertainty estimator. the proposed netw...

Gesture-changeable under-actuated (GCUA) function is presented to make robot hand grasp objects dexterously and achieve humanoid manipulations with low dependence on control system. Based on GUCA function, GCUA Hand II is developed, which has 5 fingers and 14 DOFs. All the fingers use similar tendon mechanisms to achieve GCUA function which includes traditional under-actuated (UA) grasping moti...