نتایج جستجو برای: flexible manipulator

تعداد نتایج: 123448  

2014
M. Khairudin

This paper presents the dynamic modelling of a flexible robot manipulator incorporating payload. A planar flexible manipulator incorporating structural damping, hub inertia and payload that moves in the horizontal plane is considered. A dynamic model of the system is developed using a finite element and assumed mode methods (FEM and AMM). In this work will make a comparison between FEM and AMM....

2012
Aicha Elhsoumi Rafika El harabi Saloua Bel Hadj Ali Mohamed Naceur Abdelkrim

In this paper, the stability and stabilization of a neutral system with time-delay are treated. First, the flexible manipulator is modeled as a neutral time-delay system form. Then, based on the Lyapunov-Krasovskii functional theory, a delay dependant condition is proposed to test studied system stability, which is applied to a flexible manipulator model. The test shows that this flexible manip...

2012
M. Khairudin Z. Mohamed

This paper presents an investigation into the dynamic modelling and characterisation of a two-link flexible robot manipulator incorporating a payload. A planar two-link flexible manipulator incorporating structural damping, hub inertia and payload that moves in the horizontal plane is considered. A dynamic model of the system is developed using a combined Euler-Lagrange and assumed mode methods...

A flexible-joint robot manipulator is a complex system because it is nonlinear, multivariable, highly coupled along with joint flexibility and uncertainty. To overcome flexibility, several methods have been proposed based on flexible model. This paper presents a novel method for controlling flexible-joint robot manipulators. A novel control law is presented by compensating flexibility to form a...

2008
Deirdre R. Meldrum

Quick, precise control of a flexible manipulator in a space environment is essential for future Space Station repair and satellite servicing. Numerous control algorithms have proven successful in controlling rigid manipulators with colocated sensors and actuators; however, few have been tested on a flexible manipulator with noncolocated sensors and actuators. In this thesis, a model reference a...

2011
M. A. Ahmad N. H. Noordin

This project presents investigations into the applications and performance of embedded input shaper in command shaping techniques for vibration control of a flexible manipulator. A constrained planar single-link flexible manipulator is considered and the dynamic model of the system is derived using the assume mode method. An unshaped bang-bang torque input is used to determine the characteristi...

2011
Dong-Soo Kwon

Wayne J. Book George W. Woodruff SchOOl of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332 A manipulator system with a large workspace volume and high payload capa~ity has greater link flexibility than do typical industrial robots and teleoperators. N Imk flexibility is significant, position control of the manipulator's end-effector exhibits nonminimum-phase. noncollo...

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...

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...

2009
Hong Zhaobin Chen Li

The robust control and active vibration control for free-floating space flexible manipulator with parameter uncertainties are studied. The dynamic equations of the system are developed by using the Lagrangian assumed modes methods, it is verified that the dynamic equation can be linearly dependent on a group of inertial parameters. Based on the results and under the assumption of two-time scale...

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