Results 251 to 260 of about 15,483 (283)
Some of the next articles are maybe not open access.
Passive mechanical gravity compensation for robot manipulators
Proceedings. 1991 IEEE International Conference on Robotics and Automation, 2002A simple mechanical method for passively compensating for gravitationally induced joint torques is presented. This energy-conservative gravity-compensation method is suitable for a variety of manipulator designs. With cables and appropriate pulley profiles, changes in potential energy associated with link motion through a gravity field can be mapped to
Nathan Ulrich, Vijay Kumar
openaire +1 more source
Gravity Compensation Walker: Structure and Safety
Volume 5: Biomedical and Biotechnology, 2020Abstract Morbid obesity is a widespread problem in the united states. The rate of falls and injures is much higher for obese individuals when compared to individuals of normative weight. Obesity can also impose excessive load to the hip and knee joints during the sit-to stand transition, which is conducive to osteoarthritis and increased
Robert Felmlee +7 more
openaire +1 more source
Gravity compensation of spatial two‐DOF serial manipulators
Journal of Robotic Systems, 2002AbstractThis article presents the analysis of gravity compensation of a two‐DOF serial manipulator operating in three‐dimensional space by means of linear spring suspension. The physical configuration of the serial manipulator is assumed general. The analysis begins with gravity compensation of a one‐DOF manipulator in order to form the basis which is ...
Theeraphong Wongratanaphisan, M. Chew
openaire +1 more source
An approach for gravity compensation of planetary rovers
2010 3rd International Symposium on Systems and Control in Aeronautics and Astronautics, 2010Experimental investigation of planetary rovers' behavior requires low gravity (LG) simulation. It is true because rovers may have insufficient power to move and sink much deeper into soft soil in 1-g gravity environment. Constant-tension suspension is considered the best possible way for gravity compensation (GC) of rovers.
Zongquan Deng +3 more
openaire +1 more source
Force-Sensorless Friction and Gravity Compensation for Robots
2015In this paper we present two controllers for robots that combine terms for the compensation of gravity forces, and the forces of friction of motors and gearboxes. The Low-Friction Zero-Gravity controller allows a guidance of the robot without effort, allowing small friction forces to reduce the free robot motion.
Santiago Morante +3 more
openaire +1 more source
A Study on a Gravity Compensator for the Robot Arm
Journal of the Korean Society of Marine Engineering, 2009In this paper, a design and analysis of a gravity compensator which is a new device to reduce the joint torque of robots caused due to gravity is presented. Joints of all robots are loaded by large torques due to gravity. By applying the gravity compensator to the robot joints, the load torques applied to the robot joints are reduced by the repulsive ...
Hyeung-Sik Choi +2 more
openaire +1 more source
Magnetic Compensation of Gravity: Experiments with Oxygen
Microgravity Science and Technology, 2008The CEA Grenoble, through the ESEME/SBT team, has developed a new ground based facility providing magnetic compensation of gravity in oxygen. A 2T superconducting magnetic coil has been used to create the magnetic field. The installation is described.
G. Pichavant +4 more
openaire +1 more source
Design of Gravity-Compensated Manipulators
Energy consumption in robotics is a major challenge in modern industry. Robotics is emerging as a promising field for manufacturers seeking to address this issue. This paper presents a novel manipulator design approach in which the total center of mass of moving links remains in a horizontal plane, effectively eliminating input torques caused by ...Chesnot, Arthur, Arakelian, Vigen
openaire +1 more source
Haptic Joystick Impedance Control with Gravity Compensation
2019Due to the gravity of the joystick during the remote control using the joystick, If you use it for a long time, the driver’s muscles may become tired. In order to achieve the impedance control of the joystick gravity environment, this paper proposed an impedance control method based on gravity compensation in the gravity environment. The control of the
Yong-Jin Ock +3 more
openaire +1 more source
Stiffness Modeling for Gravity Compensators
2022Alexandr Klimchik, Anatol Pashkevich
openaire +1 more source