This paper presents the design of PD-type fuzzy logic controller (PDFLC) for vibration control of a single-link flexible manipulator system. A flexible manipulator system is a SIMO system with motor torque as the applied input and the hub angle and tip deflection as its two outputs. The system is modelled using the finite element method. The PDFLC have two inputs, the hub angle error and its de...

In this paper, the backstepping design scheme is developed for the tip-position trajectory tracking control of single-link flexible robotic manipulator systems. An infinite dimensional dynamic model of a single-link flexible manipulator is derived through the assumed modes method associated with Lagrange approach. For simplicity, a linearized system model would be analyzed and investigated for ...

Ideally, one would design a manipulator to be as rigid as possible. However there may be some occasions when the manipulator will be flexible. This will occur when the manipulator is very long and lightweight. Traditional flexible manipulators are difficult to control. This is because the manipulator has a nonlinear position variant behavior. Unfortunately using a large gear reduction does not ...

This paper presents the development of an optimal self-tuning PID controller for vibration suppression of flexible manipulator structures using particle swarm optimization (PSO). A simulation environment characterizing the dynamic behavior of the flexible manipulator system was first developed using finite difference (FD) approach to acquire the input-output data of the system. The global searc...

In this paper, a combined control of a mobile manipulator is studied, the platform is velocity controlled and the manipulator is torque controlled. Our objective is to develop a control method which generates the adequate articular torques and kinematics control to move the end-effector and the platform for executing the task efficiently without any collisions between the mobile manipulator (ma...

This paper presents a motion planning method for mobile manipulators for which the base locomotion is less precise than the manipulator control. In such a case, it is advisable to move the base to discrete poses from which the manipulator can be deployed to cover a prescribed trajectory. The proposed method finds base poses that not only cover the trajectory but also meet constraints on a measu...

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....

The Omnid human-collaborative mobile manipulators are an experimental platform for testing control architectures autonomous and multirobot manipulation. An consists of a mecanum-wheel omnidirectional base series-elastic Delta-type parallel manipulator, it is specific implementation broader class collaborative robots (“mocobots”) suitable safe human co-manipulation delicate, flexible, articulate...