There is considered a possibility of effectiveness increase machinery billet flat deep grinding at the expense high-speed machining use and also on an automatic cycle mode changes. The application grinding, for instance, slots or profiles turbine blade locks allows rejecting their preliminary milling, carrying out single position one machine which increases accuracy its capacity.

Gas foil bearing has been widely used in high-speed turbo machinery due to its oil-free, wide temperature range, low cost, high adaptability, stability and environmental friendliness. In this paper, state-of-the-art investigations of gas bearings are reviewed, mainly on the development China. After decades development, progress achieved field Small-scale applications have realized a variety mac...

Aiming at the low mechanization of paddy field weeding and lack dedicated agricultural machinery for in China, a self-propelled system machine was designed. The overall structure working principle were illustrated analyzed. interaction mechanism wheel-soil during model established, then, wheel traction surface flatness selected as evaluation indexes discrete element simulation experiment. steer...

Bearings are an important part of any rotating or oscillating machinery that supports the parts machinery. This work presents use vibration signal analysis techniques, including time-domain and envelope spectrum analysis, to identify bearing defects their severity. In this work, MATLAB codes developed process signals by normal defective bearings extract statistical parameters, frequency spectru...

Magnetic levitation is becoming widely applicable in magnetic bearings, high-speed ground transportation, vibration isolation, etc., [1]. For example, magnetic bearings support radial and thrust loads in rotating machinery. In addition, magnetic suspension generates levitation action in rectilinear motion devices such as high-speed ground transportation systems. Magnetic levitation is immensely...

High-speed motor is increasingly used in ultra-high precision machining and high-performance machinery. It necessary to achieve closed-loop control of high-speed order realize control. The high-frequency characteristics have brought great difficulties for its realization performance the hexagonal flux direct torque (DTC) method that can reduce switching frequency power devices researched synchr...

In order to implement online real-time non-destructive detection of turbine fluid distribution and the internal operation of the rotating machinery, we designed a high-speed data acquisition system based on PCI7300A and a high speed microcontroller—UBICOM. It is also for a further goal of carrying on graphical fault diagnosis and fault-tolerant control. This paper describes the system structure...

In the context of Industry 4.0 (I 4.0), one most important aspects is data, followed by capital required to deploy advanced technologies. However, Small and Medium Enterprises (SMEs) are neither data ready nor have upgrade their existing machinery. SMEs, legacy machines do not gathering capabilities. this scenario, concept retrofitting machinery with sensors building an Industrial Internet Thin...

An approach to deal with the phenomenon of maritime fuel smuggling is to control the quantity of fuel that is supplied to vessels. For the same reason, fuel is delivered to marine vessels in Iran in accordance with the ration defined by the National Iranian Oil Products Distribution Company (NIOPDC). The ration is determined by a fuel consumption formula defined by the Food and Agriculture Orga...

The hard bottom layer of a paddy field has great influence on the driving stability and operation quality efficiency intelligent farm machinery. For machinery, continuous improvements in accuracy unmanned precision operations are needed to realize rice farming. In context machinery operation, complicated situation makes it difficult quantify local characteristics fields. this paper, an direct s...