نتایج جستجو برای: robots

تعداد نتایج: 38764  

Journal: :international journal of robotics 0
hadi ardiny école polytechnique fédéral de lausanne, lausanne, switzerland stefan witwicki école polytechnique fédéral de lausanne, lausanne, switzerland francesco mondada école polytechnique fédéral de lausanne, lausanne, switzerland

although construction has been known as a highly complex application field for autonomous robotic systems, recent advances in this field offer great hope for using robotic capabilities to develop automated construction. today, space research agencies seek to build infrastructures without human intervention, and construction companies look to robots with the potential to improve construction qua...

This paper addresses the dynamic path planning for two mobile robots in unknownenvironment with obstacle avoidance and moving target tracking. These robots must form atriangle with moving target. The algorithm is composed of two parts. The first part of thealgorithm used for formation planning of the robots and a moving target. It generates thedesired position for the robots for the next step. ...

In this paper, to analyze the transport of autonomous robots, an artificial Capital market is used. Capital market is considered as a pier which loading and unloading of cargo is done. Autonomous robots load and unload from the ship to the warehouse wharf or vice versa. All the robots have the ability of transporting the loads, but depending on loads and the location of unloading (or loading) a...

Journal: :journal of modern processes in manufacturing and production 0
mohammad goodarzi 1department of electrical engineering, faculty of engineering, garmsar branch, islamic azad university,garmsar, iran

this paper presents a robust fractional order controller for flexible-joint electrically driven robots under imperfect transformation of control space. the proposed approach is free from manipulator dynamics, thus free from problems associated with torque control strategy in the design and implementation. as a result, the proposed controller is simple, fast response and superior to the torque c...

Journal: :journal of mechanical research and application 2009
alireza ramezanifar hassan zohoor aliakbar moosavian

in this article a new and an accurate method for kinematic and dynamic analysis of a parallel robot 3prs and a hybrid robot (parallel and serial) 3prs-rrp are presented, which is based on the denavit-hartenberg transformation matrix algebra. first, basic properties of various kinds of robots are compared, and then the denavit-hartenberg parameters and their table are introduced. next, the metho...

Journal: :روش های عددی در مهندسی (استقلال) 0
عباس فتاح و بیژن طهماسبی a. fattah and b. tahmasebi

the kinematics and dynamics of two industrial cooperating robots are presented in this paper. the noc (natural orthogonal complement) method is used to derive the dynamical equations for the motion of two cooperating robots. the joint torques of the two robots are determined based on the optimization techniques in order to obtain unique solution for joint torques. to this end, minimizing the cr...

Journal: :journal of optimization in industrial engineering 0
mahdi eghbali qazvin azad university mohammad saidi mehrabad department of industrial engineering, iran university of science and technology, narmak, tehran, iran hassan haleh islamic azad university, qazvin branch, department of industrial and mechanical engineering, qazvin, iran

scheduling is an important subject of production and operations management area. in flow-shop scheduling, the objective is to obtain a sequence of jobs which when processed in a fixed order of machines, will optimize some well defined criteria. the concept of transportation time is very important in scheduling. transportation can be done by robots. in situations that robots are used to transpor...

Journal: :journal of computer and robotics 0
maziar ahmad sharbafi university of tehran caro lucas university of tehran aida mohammadinejad khaje nasir toosi university

in this paper, an intelligent controller is applied to control omni-directional robots motion. first, the dynamics of the three wheel robots, as a nonlinear plant with considerable uncertainties, is identified using an efficient algorithm of training, named lolimot. then, an intelligent controller based on brain emotional learning algorithm is applied to the identified model. this emotional lea...

A. Fattah and B. Tahmasebi,

The kinematics and dynamics of two industrial cooperating robots are presented in this paper. The NOC (natural orthogonal complement) method is used to derive the dynamical equations for the motion of two cooperating robots. The joint torques of the two robots are determined based on the optimization techniques in order to obtain unique solution for joint torques. To this end, minimizing the cr...

Journal: :international journal of advanced design and manufacturing technology 0
alireza mohades kasaei hamidreza mohadeskasaei mohamadreza mohadeskasaei najmeh ahmadi

due to their advantages, omni-directional mobile robots have found many applications especially in robotic soccer competitions. however, omni directional navigation system, omni-vision system and kicking mechanism in such mobile robots have not ever been combined. this situation brings the idea of a robot with no head direction into existence, a comprehensive omni directional mobile robot. such...

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