This paper presents a computational technique for determining the maximum allowable load of wheeled mobile manipulators for a desired trajectory. Full load motion of mobile manipulators while carrying a load is an important consideration in their application and motion planning. The number of factors limits the maximum allowable loads, which can be achieved by a mobile manipulator during a give...

recognition of relationship between the present day stress state and fractures is very important in fractured reservoirs. fractures that are parallel or oblique to maximum horizontal stress have more tendencies to tensile deformation and tensile deformed fractures will be more permeable. the dalan formation is one of the main gas reservoirs of iran witch most of the production from this formati...

We present the first numerical solutions of the coupled Einstein-Maxwell equations describing rapidly rotating neutron stars endowed with a magnetic field. These solutions are fully relativistic and self-consistent, all the effects of the electromagnetic field on the star’s equilibrium (Lorentz force, spacetime curvature generated by the electromagnetic stress-energy) being taken into account. ...

A ball cage flexible drill pipe is a new type of ultra-short-radius drilling tool, which consists multiple joints hinged together. During the process, members will come into contact and wear, reduces efficiency load transfer. The multi-body collision dynamics model was proposed to study performance pipe. method considered influence borehole curvature. kinematic equations were established. Lanka...