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With the rapid application of high speed machining, the feed rate of moving parts has an important influence on the dynamics of high speed machine tool. In this paper, a method of modal decoupling of Operational Deflection Shapes (ODS) was proposed to investigate the dynamic behavior of machine tool with respect to different worktable feed rates. Based on this method, the dominant frequencies vibration...
This article is though discussed numerical simulation to predict the migration of uranium and strontium in shallow strata in the soil. The result indicated that the uranium will migrate out between 9777a ∼ 13587a in landfill T1, and the uranium will migrate out between 62150a ∼ 91703a in landfill T2. But the strontium won't migrate away completely. Therefore it is need to take necessary measures to...
In this paper, we present a novel Movable Gripper (MovGrip) which targets on climbing non-enclosable rectangular trusses such as bridges and space stations. It is designed with a transformation mechanism which provides the features of parallel grippers, rotatory grippers, and active wheels. For truss climbing, MovGrip acts as a parallel gripper which allows the change in gripping width according to...
The ambient calculus can depict the essence of mobile computing mobility on the basic level, but it canpsilat depict the collaboration character of collaboration computing. In order to depict the collaboration character of mobile collaboration while depicting mobility of it, a novel model named EACM, an extended ambient calculus model oriented mobile collaboration, was provided based on ambient calculus...
Aiming at the automatic composition issue of services in mobile collaboration platform, an agent-based automation service composition algorithm was proposed in this paper. Firstly, the status of service composition and agent technology was analyzed in depth. Then, transfer the semantic service to the equivalence action of agent plan. Based on it, the semantic service automation composition was carried...
Mine elevators are large electromechanical equipment with integration of mechanical, electrical and hydraulic parts, bearing the task of carrying material, equipment and personnel between ground and below ground levels. The mine elevator is the spine of the underground mining industry. At present, a great deal of elevating equipment on active service in China has not yet reached its life expectancy,...
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