It is to be expected that space robotics systems will develop more and more in the future spatial applications. One of the most challenging and risky missions for spacecraft is to perform autonomously Rendezvous and Docking (RvD) in space. This paper describes a hardware-in-the-loop RvD simulation facility which uses two ABB industrial robots to simulate the 6-DOF dynamic manoeuvring of the rendezvous process. Firstly, we also simulate the real robots and we deduce the kinematic and dynamic equations of space robotic system, then the trajectory is planned. The target motion is reduced only to the movement of the end-effector, but the chaser’s motion is based on the plan which solves the inverse kinematic equations, considering the movement limitations of the joints. Finally, a 3D simulation system was developed to evaluate the proposed method using Matlab/ Simulink environment. Simulation results verified the corresponding method and algorithms.
In this paper, we propose a simulation application that allows an aerial vehicle to land autonomously on a moving platform in the presence of uncertainties and disturbances. We have tested our method with various speeds and positions for the landing platform. In the context of this article, the autonomous control of landing on mobile platforms consists in synchronizing the movement of an aerial vehicle with the movement of the mobile platform. As a first step, the Spacelab INCAS laboratory group has developed an offline simulation application that allows an ABB robot to receive information on the movement of a Stewart-type mobile platform in order to conduct a landing process. The application can initiate a landing process on the mobile platform and guide the vehicle for perfect docking on the platform. Offline simulation allows the study of several scenarios of a robot working cell - the mobile platform before setting up the production cell. The offline application has a distributed client-server structure. The client communicates with the server through specific communication protocols. The client and server can reside on the same computer. The client application is developed in the Matlab environment and has as object the simulation and programming of the PS-6TL-1500 platform; the server one simulates and programs an ABB 7600-500/2.55 robot that moves on the track, in the RAPID language under RobotStudio ABB simulator.
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