This paper presents a method for the kinematical modeling of robot manipulator arms with flexible members. Development of such techniques are important for the improvement of robotic arms precision performance and their mechanical design. The approach employs the (4X4) Denavit-Hartenberg homogeneous transformations to describe the kinematics of light weight flexible manipulator arms. The method...

The present investigation presents a stochastic model for a flexible manufacturing system consisting of flexible machine, loading/unloading robot and an automated pallethandling device. We consider unreliable flexible manufacturing cell (FMC) wherein machine and robot operate under individual as well as common cause random failures. The pallethandling system is completely reliable. The pallet o...

A technique using augmented sliding mode control for robust, real-time control of flexible multiple link robots is presented. For the purpose of controller design, the n-link, n-joint robot is subdivided into n single joint, single link subsystems. A sliding surface for each subsystem is specified so as to be globally, asymptotically stable. Each sliding surface contains rigid-body angular velo...

This paper presents a family of climbing robots that are using a track-wheel mechanism for locomotion mechanism. There are three robots: High speed vertical climbing robot, Flexible caterpillar robot, and Multi-linked climbing robot. The high speed vertical climbing robot uses suction pads to be attached on walls, and the robot has an advantage of high climbing speed of 14 m/min. The flexible c...

Design issues, dynamic modeling, trajectory planning, and feedback control problems are presented for robot manipulators having components with mechanical flexibility, either concentrated at the joints or distributed along the links. The chapter is divided accordingly in two main parts. Similarities or differences between the two types of flexibility are pointed out wherever appropriate. For ro...

gait rehabilitation using body weight support on a treadmill is a recommended rehabilitation technique for neurological injuries, such as spinal cord injury. in this paper, a new robotic orthosis is presented for treadmill training. in the presented design the criteria such as low inertia of robot components, backdrivability, high safety and degrees of freedom based on human walking are conside...

Due to their inherent compliance, soft actuated joints are becoming increasingly important for robotic applications, especially when human-robot-interactions are expected. Several of these flexible actuators are inspired by biological models. One perfect showpiece for biomimetic robots is the spider leg, because it combines lightweight design and graceful movements with powerful and dynamic act...

-A flexible, real-time motor control system consisting of a DC motor and an incremental optical encoder is proposed. The system allows complex real-time control algorithms to be implemented with hardware control excepting PC-based software simulation. A motion control processor is used to bridge the Target PC and the robot joint through I/O devices. Simulink/Real Time Workshop (RTW) are the sof...

Lower limb rehabilitation robot (LLRR) can effectively help restore the lower limb’s motor function of patients with hemiplegia caused by stroke through a large number targeted and repetitive training. To improve safety comfort robot-assisted rehabilitation, we developed an LLRR rigid-flexible characteristics; design passive joints is used to human-machine compatibility; flexible unit makes mec...