Tribology Testing - Study of Friction and Wear


Aerospace Tribology is the study of friction and wear, and moving contacts are of vital importance to all aerospace applications. For example, fretting and wear of hinges, tracks, bearings, and gearboxes in airframes and engines is a constant problem for aircraft, as they induce failures and jamming, necessitating costly in-service inspections and replacement of parts.


Understanding Tribological issues requires a deep understanding of modern material science, in combination with laboratory test capabilities. DVI has access to the most comprehensive Tribology test lab. This lab provides full-service solution’s to friction, wear, and material problems. From identification of wear problems, to the design and machining of fixtures, to interpretation of test data, DVI can offer a value added solution to the most challenging friction and wear issues. We can provide scientifically written reports citing probable cause and recommendations for corrective action on all aircraft related components and structures. With active membership and participation at ASM, ASTM, STLE, NLGI, SAE and other technical committees the independent lab maintains the latest in standardization and is actively engaged in dynamic studies and research of materials, fluids, and lubricants.


Aerospace Tribology also includes the study and use of coatings to mitigate friction. DVI's staff has extensive experience screening and testing coatings for determining performance characteristics. DVI' staff has worked with the National Science Foundation and the Air National Guard to identify a low-friction, impact-resistant, abrasion-resistant, and hydrophobic coating for applications on the LC-130 fleet. The LC-130 can experience significant take off problems in some snow conditions, because of the frictional drag created by the skis.  Take-off difficulties often require multiple takeoff attempts, often numbering a half dozen or more, reducing cargo, or delaying take-off for hours until the temperature changes. Selecting potential improvements to the skis of the LC-130 requires understanding why friction in the ski-snow interaction changes as the snow morphology changes with varying temperature, and why these changes are more pronounced in new snow then in old snow, or in prepared snow. 


 

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