The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In order to improve the accuracy and speed of on-line tool wear monitoring system, an evolutionary neural network using variable string genetic algorithm (VGA) was developed to construct the relations between tool wear and signal features extracted from cutting forces, vibrations, and acoustic emission by different signal processing methods. The system could automatically evolve the appropriate architecture...
In order to improve the performance of linear rolling guide on different machining condition, a guide performance degradation model based on dynamic fuzzy neural network (DFNN) was proposed to predict guide life after considering a variety of factors to guide's motion precision and wear status in this paper. The vibration signals from linear rolling guide were processed by time domain analysis and...
After considering a variety of factors to the performance degradation of screw-nut pair, a novel performance degradation model based on dynamic fuzzy neural network (DFNN) was proposed to predict screw life in this paper. The model can assessed the life of Roller Lead Screw-nut pair of the CNC feed drive system effectively, and can resolved the problems of screw life changing with the machining conditions...
The life change of the screw in High-end CNC machine tool in the process has some features such as non-linear, dynamic and uncertainty. A screw online life prediction system was designed to monitor the performance of lead screw by vibration sensors and temperature sensors which installed at different locations of Lead Screw Pair and reflected the trend of changes of different processing conditions,...
A microcomputer-based system of continuously measures water stress in crop in a non-destructive testing method was developed. Produced by cohesion between water molecules or adhesion to the conduit wall, the crop xylem cavitation was accompanied by the vessel walls vibration which is the indicator of the water stress. The physics of ultrasonic acoustic emissions (AEs) were used to measure the crop...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.