关键词： underwater hull cleaning robot   computational fluid dynamics   hydrodynamic characteristics  

摘要： In this article, an underwater hull cleaning robot model based on propeller thrust adsorption is established for near-wall conditions. By using a computational fluid dynamics method, which is proven feasible by comparing a calm water resistance simulation with its experimental data, the influence of floating body shape and wall distance on its hydrodynamic characteristics is studied. Then, the body force propeller model is used to analyze the interaction between the propeller flow field and the flow field around the underwater cleaning robot. Compared with the cuboid floating body, the results show that the streamlined appearance can greatly reduce front high-pressure area, the pressure drag between the front and rear ends, and the viscous resistance. Its drag coefficient is reduced by 11.5%. The presence of the hull will increase the pressure drag and viscous resistance of the underwater hull cleaning robot, which is similar to the "shallow water blockage effect" of a ship. For this model, the decrease in the wall distance results in a progressive increase in resistance and drag coefficient. As the wall distance is.15 m, the drag coefficient of the underwater hull cleaning robot increases by 4.55%, compared with the limitless water field. For the body force propeller model, the study indicates thatwhen the flow velocity is constant, both the resistance in the forward direction and the adsorption force of the underwater hull cleaning robot increase with the increase in rotation speed of the propeller. The thrust propeller generates a higher increase in resistance and a lower increase in adsorption force compared with the adsorption of the propeller. When the rotation speed is constant, the resistance of the underwater hull cleaning robot increases, with the increase in the flow velocity, and the adsorption force of the underwater hull cleaning robot first decreases and then increases. Therefore, it must be fully considered that the significant influence of the hull

关键词： Engineering education   Robots  

摘要： Reports on the current state of robotics education in colleges and universities.

关键词： Human dignity   Governance   Robotics   Human-robot interaction   Healthcare robots  

摘要： Healthcare robots enable practices that seemed far-fetched in the past. Robots might be the solution to bridge the loneliness that the elderly often experience;they may help wheelchair users walk again, or may help navigate the blind. European Institutions, however, acknowledge that human contact is an essential aspect of personal care and that the insertion of robots could dehumanize caring practices. Such instances of human-robot interactions raise the question to what extent the use and development of robots for healthcare applications can challenge the dignity of users. In this article, therefore, we explore how different robot applications in the healthcare domain support individuals in achieving 'dignity' or pressure it. We argue that since healthcare robot applications are novel, their associated risks and impacts may be unprecedented and unknown, thus triggering the need for a conceptual instrument that is binding and remains flexible at the same time. In this respect, as safety rules and data protection are often criticized to lack flexibility, and technology ethics to lack enforceability, we suggest human dignity as the overarching governance instrument for robotics, which is the inviolable value upon which all fundamental rights are grounded.

关键词： Obituaries   Klafter, Richard D.  

摘要： Recounts the career and contributions of Richard D. Klafter.

摘要： CHRISTIAN WANAMAKER’S ROBOTICS SOFTWARE HELPS STUDENTS ON THE AUTISM SPECTRUM WHEN THE SMILEY-FACED RObot tells two boys to pick out the drawing of an ear from three choices, one of the boys, about 5, touches his nose. “No. Ear,” his teacher says, a note of frustration in her voice. The child picks up the drawing of an ear and hands it to the other boy, who shows it to the robot. “Yes, that is the ear,” the ever-patient robot says. “Good job.” The boys smile as the teacher pats the first boy in congratulations.

关键词： crawler   drone   robot   robotics   submarine   UAS   UAV   unmanned aerial system   unmanned aerial vehicle  

摘要： Confined space entries and elevated work are two of the most hazardous practices in the chemical industry. As part of its breakthrough Manufacturing 4.0 initiative, The Dow Chemical Company has been employing devices such as unmanned aerial vehicles (UAVs or "drones") and robots to eliminate the need for employees to enter confined spaces or conduct elevated work, while allowing effective, remote inspections. Since piloting the use of UAVs and robots in 2016 at Dow, over 1000 confined space entries have been avoided. UAVs are being used to inspect distillation columns, flares, transmission towers, and pipelines-avoiding the need for over 2200 elevated work inspections by humans. Robotic miniature submarines are also being used to allow remote sensing for underwater inspections. The role of UAVs and robots in safety is continuing to expand beyond gathering visual data;robots are now equipped with sophisticated tools for gathering samples and nondestructive data, enhancing the ability to monitor environmental performance and ensure mechanical integrity. They are also being used to perform functions such as dismantling and removing internal equipment, cutting/sawing, hydroblasting, vacuuming sludge, and performing vessel wall/pipe thickness, ultraviolet, gauss (magnetic), and infrared scans. The benefits of UAVs and robots in reducing human risk, enhancing data collection, and improving productivity are quite clear;however, the hazards of these technologies need to be carefully evaluated to ensure that the devices can be used safely in specific applications. UAVs can present collision hazards, and a poorly chosen flight path could result in human injury, significant damage to process equipment, or the loss of the UAV. During internal equipment inspections, UAVs and robots can be made of incompatible materials of construction that could contaminate or damage the equipment being inspected or the UAV or robot itself. Also, during internal inspections, UAVs and robots can

关键词： Adhesives  

摘要： We consider the control system of an adaptive wall-climbing robot. The robot adheres to the surface aerodynamically using a centrifugal-type pump. A mathematical model of the robot is constructed and its equilibrium conditions on an arbitrarily oriented plane are investigated. In order to optimize the energy consumption, an algorithm of the adaptive control of an aerodynamic pump is proposed. The results are tested experimentally.

关键词： electromyographic (EMG) sensors   electroencephalographic (EEG) sensors   assistance robotics applications   robotic exoskeletons   robotic prostheses   advanced biomedical signal processing  

摘要： This Special Issue is focused on breakthrough developments in the field of assistive and rehabilitation robotics. The selected contributions include current scientific progress from biomedical signal processing and cover applications to myoelectric prostheses, lower-limb and upper-limb exoskeletons and assistive robotics.

摘要： This editorial introduces a special issue for the Robotics: Science and Systems (RSS) conference in 2018. In their article 'Learning robust, real-time, reactive robotic grasping', Morrison et al. introduce a novel and lightweight generative convolutional neural network model for real-time prediction of grasp quality from images in online robot grasp planning applications. The article 'Learning task-oriented grasping for tool manipulation from simulated self-supervision' is one of the first papers to use deep learning for task-oriented grasping. [Extracted from the article]

摘要： Presents a listing of the IEEE RAS society newly elected 2020 Administrative Committee members.