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http://172.22.28.37:8080/xmlui/handle/1/222| Title: | Experimental Investigation of effect of Local Defect on Deep Groove Ball beraring under pure radial load |
| Authors: | Shaha Rohit D., Kulkarni S.S. Gandhare B.S. |
| Keywords: | deep groove ball Bearing, Outer race defects, Inner race defect FFT analysis |
| Issue Date: | Jun-2014 |
| Publisher: | International Journal of Mechanical Engineering and Information Technology |
| Series/Report no.: | ;Vol. 2 Issue 6 |
| Abstract: | Condition monitoring of deep groove ball bearings find widespread domestic and industrial application. It offers the advantages of reducing down time and improving maintenance efficiency. Bearing failure is a major factor in failure of rotating machinery. As a local defect is detected, it is common to shut down the machinery as soon as possible to avoid catastrophic damages. Performing such an action, which usually occurs at inconvenient times, typically results in substantial time and economical losses. It is, therefore, important to monitor the condition of deep groove ball bearings and to know the details of severity of defects before they cause serious catastrophic consequences. There is scope for analysis of faulty deep groove ball bearing at various speed and different radial loads was applied on various lateral defect sizes. The actual measurements of vibration signals for healthy, defective bearing has been carried out by using FFT analyzer and time domain signal analysis. |
| Description: | Every rolling element or anti- friction bearing has a limited life which is strongly influenced by installation, operating condition and the maintenance. Machine reliability, efficiency and One of the results of bearings failures are increased level of vibration and noise. Eventually, metal fatigue causes every bearing to wear out and fail. Bearings fail prematurely due to operating condition, lubrication and usage problems. When a bearing does fail, the secondary damage to associated machine parts and the loss of production greatly exceeds the cost of replacing the bearing. Replacing bearings after a set number of hours is also risky since good bearings are thrown out needlessly and unscheduled failure can still result. The best solution then is to systematically monitor bearing condition and schedule replacement without influencing production efficiency. The first attempt for obtaining dynamic models of rolling element bearings occurred in the mid- 1970s. An analytical formulation for the generalized ball, cage and race motion in ball bearings has been presented by Gupta [1]. The model proposed by McFadden and Smith describes the vibration produced by a single point defect and multiple defects in the bearings[2,3]. N. Tandon, et. al A review of vibration and acoustic measurement methods for the detection of defects in rolling element bearings is presented in this paper. This paper include detection of both localized and distributed categories of defect, explanation for the vibration and noise generation, Vibration measurement in both time and frequency domains along with signal processing techniques such as the high- frequency resonance technique, acoustic measurement techniques such as sound pressure, sound intensity and acoustic emission. From a and accelerometer signals are acquired in terms of voltage (volt) and the recorded signals are processed in Lab VIEW [8]. M.S. Patil et.al in this paper work is focused towards the development of a theoretical model to study the effect of defect size on the model makes it possible to detect the frequency spectrum having peaks at the bearing defect frequencies. |
| URI: | http://localhost:8080/xmlui/handle/1/222 |
| Appears in Collections: | Faculty Publication |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Experimental Investigation of effect of Local Defect on Deep Groove Ball beraring under pure radial load.pdf | 686.45 kB | Adobe PDF | View/Open |
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