NDLI: Tuned Vibration Based Gear Checker for Gear Profile Anomaly Detection

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Hamidieh, Youssef Jalluri, Chandra Viswanathan, Mohan Magadi, Prashanth Carter, James Duffey, Robert Salmon, James Pospisil, James
Copyright Year	2006
Abstract	Significant cost and quality metrics can be realized through the no-faults-forwards approach. This philosophy has put emphasis on early detection of defects through innovative signature analysis techniques within Powertrain Operations production lines. This paper captures the unique approach adopted on gear machining line for functionality testing of individual gears and detection of subtle gear profile anomalies leading to Noise, Vibration and Harshness (NVH) issues in fully assembled transmissions and vehicles. Gears are tested in a Vibration Based Gear Checker (VGC) in single flank engagement and operating under a torque load. The short cycle time enables feasibility for high volume measurements. The structure of Gear Checker is tuned for optimum gear profile anomaly detection**. The tuning is accomplished by structural modifications such that the Gear Checker structural natural frequencies and modes are shifted to enable a high level of excitation at harmonics of Gear Mesh Frequency (GMF) during operation. Impact testing was deployed to guide the structural adjustments for tuning. Gear checker vibration signatures for smooth and defective gears are provided; capability for detection of defective gears is demonstrated. The Gear checker frequency band vibration levels exhibit excellent correlation with the dimensional gear profile measurements by Analytical Gear Checker Coordinate Measuring Machines (CMM’s).
Sponsorship	Manufacturing Engineering Division
Starting Page	823
Ending Page	831
Page Count	9
File Format	PDF
ISBN	0791847624
DOI	10.1115/MSEC2006-21097
e-ISBN	0791837868
Volume Number	Manufacturing Science and Engineering, Parts A and B
Conference Proceedings	ASME 2006 International Manufacturing Science and Engineering Conference
Language	English
Publisher Date	2006-10-08
Publisher Place	Ypsilanti, Michigan, USA
Access Restriction	Subscribed
Subject Keyword	Cycles Torque Vibration Machining Stress Vehicles Noise (sound) Coordinate measuring machines Gears Volume measurement Impact testing Electromagnetic spectrum Excitation Assembly lines Testing
Content Type	Text
Resource Type	Article

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