Sideband energy ratio method for gear mesh fault detection
First Claim
Patent Images
1. A method for assessing deterioration in a machine, comprising:
- calculating the ratio of summed sideband amplitudes to their center harmonic frequency amplitude produced in the operating machine; and
,evaluating the ratio over at least one of a time period or ratio value.
3 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a method for assessing deterioration in a gearbox. Data is obtained from an operating gearbox regarding harmonic frequencies and their related sidebands generated as a consequence of the gearbox operation. In a first embodiment, a Sideband Energy Ratio (SER) is calculated by dividing the amplitude of the sum of sideband signals associated with a harmonic to the amplitude of the harmonic. In a second embodiment, a SER is calculated based on sideband amplitudes associated with adjacent harmonics. The ratio may be monitored over time or compared to one or more values to provide an indication of deterioration.
-
Citations
15 Claims
-
1. A method for assessing deterioration in a machine, comprising:
-
calculating the ratio of summed sideband amplitudes to their center harmonic frequency amplitude produced in the operating machine; and
,evaluating the ratio over at least one of a time period or ratio value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A system for assessing deterioration in a machine, comprising:
-
means for calculating the ratio of summed sideband amplitudes associated with first and second predetermined adjacent mesh harmonics produced in the operating machine; means for evaluating the ratio over at least one of a time period or ratio value; and
,means for displaying results of the evaluation. - View Dependent Claims (13, 14, 15)
-
Specification