News
Spin Testing Evaluates Static/Dynamic Stress Interaction in Turbine Engine Blades
09.16.2008
Test Devices Inc. recently completed resonant spin tests on a series of first stage (R0) compressor blades for an F-Class industrial gas turbine. The tests were conducted for a major global energy services company in the process of developing a more efficient gas turbine blade design. The company worked very closely with the customer to define the application, fabricate the tooling and excitation system, and deliver results in a short time period so that critical component data was available for a scheduled field test.
In blade testing, it is of critical importance to consider both static (centrifugal) and dynamic (vibrational) stresses when evaluating blade performance and component life. Test Devices’ patented oil jet excitation system has demonstrated the capability to produce resonant vibratory amplitudes sufficient to initiate cracks from ceded flaws.
Journal of Failure Analysis and Prevention
Published online: 16, September, 2008