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.
Current vibration based maintenance methods can be improved by using principle component analysis to identify fault patterns in rotating machinery. The intent of this paper is to study the effects of using principle component analysis in a vibration based fault detection process and to understand the capability of this method of maintenance. Because vibration-based maintenance practices are capable...
This paper presents a generalized approach for health monitoring of electric machines based on the measured vibration data. In this methodology the source of the vibration can be detected through data analysis in frequency domain measured by accelerometer sensors attached to the surface of the machine's stator. This method can separate and distinguish the source of vibration in the case of multiple...
In industrial applications, the uptime of machines can be enhanced through equipment monitoring. This minimizes the risks of unpredicted failures and consequent plant outages. Since all failure modes can cause an increase in machine vibrations, monitoring this area is the predominant and most widely used method to determine equipment condition, and to predict failures. The objective of this study...
This paper presents an algorithm to model the temperature dependent characteristics of SiC IGBT devices. In this method the electro-thermal behavior of the device is modeled using a numerical model. The proposed electro-thermal model is based on the Kraus IGBT electrical model coupled with the Elmore thermal model, which represents the propagation delay of the heat flux through the physical geometry...
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.