The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The direct matrix converter has been regarded as a promising AC/AC conversion topology and it is being researched. Motor drives are one of the main potential applications of the matrix converter. This paper carries forward the application of matrix converters in AC motor drives using direct torque control (DTC). In the common DTC scheme for the matrix converter, two vectors with the maximum amplitudes...
In this paper, the mathematical model of the towing torque is established and the solution is obtained. The gap of friction plate is the key factor of influencing the towing torque. Through the experiment, testing the towing torque of the different material friction plate. The paper shows that the towing torque of carbon-based friction plate is smaller than copper-based friction plate and smaller...
In pedicle screw insertion surgeries, the most dangerous part is the screw path drilling process. In current surgeries, surgeons guarantee not to drill through the vertebra by their haptic and auditory sense and experience. In this paper, an intraoperative real-time control method for a Robotic Spinal Surgical System (RSSS) with state sensing is proposed. A drilling state recognition with Audio-Torque...
Based on the analysis of the first prototype of an assisting robotic arm (ARA) for minimally invasive thoracic surgery, an improved design is presented. A self-gravity compensation mechanism is developed to resist joint torques caused by the weight of the robot and to reduce the force exerted on the end-effector by the surgeon. With a motor built into the arm, the design of the ball-socket-joint is...
JL-1 is a reconfigurable multi-robots system based on parallel mechanisms and cone-shaped docking mechanisms. To reveal how the force cooperation between robots enhances the terrain adaptability of JL-1 and to discover the limits of the current reconfiguration mechanism, this paper analyzes the forces arising between robots during cooperation in docking and docked state. The static analysis of the...
At first, this paper briefly introduces a novel reconfigurable mobile robots system JL-1 and the serial and parallel mechanism using to perform the reconfiguration actions. Based on the kinematics equations of the serial and parallel mechanism, the static transformation equations of it are concluded according to the virtual work theory, which is useful in determining the drivable workspace of the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.