Recent Patents on Mechanical Engineering - Volume 8, Issue 2, 2015

Using viscosity of fluid between friction pair to transmit power is called the Hydro-viscous Drive (HVD), which has obvious energy-saving effects on soft start and speed regulation. In this review, we introduce the basic principle of HVD and HVD production development, and emphasize the potential of ever increasing power of HVD in future industrial applications. The current status of research in HVD is described which inclu Read More

With the increasing application of mechanical engineering in medical areas, bone drilling has become one essential part of orthopedic surgery. Recently, there are more and more researches and developments on bone drilling for fixing implants or widening operative field and related equipments. However, the uncontrollable axial force and over high drilling temperature during bone drilling not only influence drilling qu Read More

In the era of miniature, multi-axle steering has been evolved as an expected developing trend for heavy-duty vehicle. The high-performance multi-axle steering system can significantly strengthen the maneuvering flexibility and handling stability of multi-axle vehicle, which is one of the key technologies for measuring the development level of modern large-scale and heavy-duty vehicles. A large number of patents and article Read More

The microchannel heat sink is proposed with the advantages of small volume, light weight, low noise, easy integration and high heat transfer coefficient, which can meet the cooling demand for the power density greater than 100 . The latest research status of micro-channel heat sinks is summarized in this paper, and the typical design structures are analyzed. In this paper, various patents have been discussed, and an ov Read More

Blade flutter of wind turbine causes serious problems so as to hinder wind capture and utilization to a large extent. To cope with the problem and promote the flutter self-suppressing capability, a damping blade with high damping characteristic is proposed. The damping blade is mainly comprised of the girder and the panel which are respectively treated through the method of free damping layer and co-curing constrain Read More

Automatic equipment greatly improves the industrial manufacturing efficiency, as its brain, the motion control system exerts significant influence over the operating performance. In recent decades, there has been an ever increasing concern for developing motion control systems with more applicable characteristics, especially those that can easily fit into various occasions. It is with such motivation that distinct features, sche Read More

Recently developed heat transfer augmentation techniques, such as surface texturing (US20120274029) and built-in heat pipe (US20140327211), show potential in significantly lowering the rubbing face temperature of the parallel sliding tribocomponents, such as mechanical seals and bearings. In addition, recent experimental results have revealed that lowering the face temperature tends to lower the rubbing face fric Read More

In order to analyze the effect of rotation speed of a friction pair on transmission characteristics of a rotating oil film, a 3D computational model of an oil film between a friction pair is built; pressure, temperature, velocity, and torque transferred by the rotating oil film are investigated at rotation speeds of 1000r/min, 3000r/min, and 4000r/m using the computational fluid dynamics (CFD) software ANSYS Fluent. It is found that the Read More

Electric Discharge Machining (EDM) is a prominent machining technique used mainly to machine difficult to cut metals and alloys. The major challenges faced in EDM are high Tool Wear Rate (TWR), overcut and poor surface quality. To overcome these challenges, this research aims to improve the TWR and overcut. The experiments were conducted on the EDM using Copper (Cu) electrode, Cryogenically Treated (CT) Cu Read More

In order to research the identification methods for shearer cutting status, some relevant patents and scientific references are studied and analyzed. A new method based on the integration of particle swarm optimization (PSO) and support vector data description (SVDD) is proposed to identify the shearer cutting status. The PSO is provided to solve the constraint optimization problem of SVDD. Some key technologies ar Read More