A cascaded control strategy for an innovative Duocopter test rig – a helicopter with two rotors combined with a guiding mechanism – is presented in this paper. The guiding mechanism consists of a rocker arm with a sliding carriage that enforces a planar workspace of the Duocopter. The Duocopter is attached to the carriage by a rotary joint and offers 3 degrees of freedom. The derived system mod...

Abstract Raising the maximum valve lift in two-stroke drive mode is key to increasing power output of variable-stroke engine, so limit design train device critical. The multi-objective genetic optimization algorithm NSGA-2 was coupled with single-freedom dynamics model device. A rapid program for constructed Matlab. Two methods explored mode. first optimize rocker structure, and second cam posi...

Objectives: Ankle Foot Orthoses (AFOs) are widely utilized to improve walking ability in hemiplegic patients. The present study aimed to evaluate the effect of Rocker bar Ankle Foot Orthosis (RAFO) on functional mobility in post-stroke hemiplegic patients. Methods: Fifteen hemiplegic patients (men and women) who were at least 6-months post-stroke and able to walk without an assistive device for...

Objective: In this paper, a proposed technique of motion transmission is introduced, which based on the crank-rocker principle motion. The energy action performed through magnetic force, in no direct connection made between source input and load output. Also, to illustrate concept approve continuity using technique, simple model mechanism has been built run, showing basic sequence operation. Me...

This paper presents a study to experimentally evaluate a new design paradigm for robotic components, with emphasis on space robotics applications. In this design paradigm, robotic components are made from embedded binary actuators and compliant mechanisms in order to reduce weight and complexity. This paper presents a series of five experiments that demonstrate the concept. These studies includ...

A method for kinematics modeling of a six-wheel Rocker-Bogie mobile robot is described in detail. The forward kinematics is derived by using wheel Jacobian matrices in conjunction with wheel-ground contact angle estimation. The inverse kinematics is to obtain the wheel velocities and steering angles from the desired forward velocity and turning rate of the robot. Traction Control is also develo...