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With rapid improvement in information and communication technologies, industrial automation systems are under the revolution. Legacy industrial automation systems lack flexibility and interoperability due to multi-layered architecture. From industrial cyber-physical system point of view, a new system architecture is needed to allow vertical and horizontal integration between all devices and systems...
As the speed regulating and energy saving of the Adjustable Speed Asynchronous Magnetic Coupling (ASAMC) is realized by changing the contact area of the air gap magnetic field through the axial movement of the squirrel cage rotor, while the axial force is generated. In order to calculate the axial force which plays a very important role in the design of the speed regulating mechanism. Firstly, the...
An analytical method is put forward to study the shrinkage and creep effects of concrete on widened T-beam bridge, important formulas are deduced to analyze the stress and deflection of the old and new T-beams, which are connected together to construct the widened bridge. Take a 20 m span widened bridge as an example, the height of the new Tbeams are analyzed specifically to disclose the law of the...
In this paper, we improve the previous results for a bi-axial large stroke beam-flexure nano-manipulating servo stage by an optimized design. By means of elliptical integrals, the analytical results of the undesired motions of the key kinematic decoupling component (i.e. Π-shaped beam flexures) can be obtained, and then a set of optimized geometric parameters is provided. The overall design significantly...
This paper presents a three-component force sensor with MEMS gauges attached to its sensitive beams, which could be monolithically machined without assembly. All the sensitive areas of the dynamometer are designed on outer surfaces, which could contribute to the bond of gold wires onto the MEMS chips. Rough theoretical models are abstracted based on Euler beam theories, and Wheastone bridge circuits...
This paper proposed a novel grasper for a novel master-slave robotic catheter navigation system in Vascular Interventional Surgery (VIS). The developed novel grasper can imitate the catheter grasping motion of the surgeon during VIS. The grasper is a key factor to drive the catheter into the vessel accurately. It adopts a common structure like the pliers, which can guarantee that the catheter can...
Establishing Emergency Rescue Force System of Public Crisis is an important portion of emergency management. Through explaining the ideological problems of establishing emergency rescue force system in public crisis, the paper reviews the supporting theories of establishing emergency rescue force system. It provides the necessary theoretical basis and practical orientation for research and implementation...
Stationkeeping system of deep-water drilling device is essential for offshore drilling; the choice of positioning methods is related to the security, stability and engineering costs of the drilling. Mooring positioning system is commonly used in deepwater drilling device. How to choose the positioning means of deepwater drilling device and taut-wire mooring system which is suitable for deep-water...
This paper analyzed and calculated electromagnetic field and counterbalance force between the permanent magnet thrust plate for a novel permanent magnet axial thrust balance structure in canned motor pump using a numerical method of Ansoft software. Then constructed permanent magnet axial thrust balance experiment device and detected the characteristics of repulsion and attraction which made up of...
With development of auto bit feeding technology, the auto bit feeding technology is one of main development directions of automatic drilling. The drilling quality can be improved in various drilling status, the accident rate in work, the labor intensity, and drilling costs can be reduced. The system composition and control principle of auto bit feeding are introduced, also is the auto bit feeding...
In order to offer a method for the rehabilitation of injured fingers and a means of quantitative detection and evaluation, an exoskeleton based continuous passive motion (CPM) machine is presented in this paper. Corresponding to each finger of human hand, the CPM machine has 4 degrees of freedom (DOF) driven by two DC motors. The joint force and position sensors are all integrated into the machine...
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