...Chao Yang; Wenyong Yu; Fei Quan; Wei Ye; Yebo Lu Establishing a microelastic deformation (micro-deformation) model of parallel manipulators (PMs) in the gravity field is of great significance for improving the calibration accuracy. Gravity affects the limb constraint wrenches space of PMs...

...Po-Yang Lin; Win-Bin Shieh; Dar-Zen Chen A novel methodology for the design of a gravity-balanced serial-type spatial manipulator is presented. In the design, gravity effects of the system can be completely compensated at any configuration. The gravity balance of the n -DOF manipulator is achieved...