Comparing Vibration Data (Turbofan Blades)
Comparing Vibration Data (Turbofan Blades)
(OP)
I am performing Impact vibration tests on turbofan blades and when comparing data the peaks are in the appropriate areas as predetermined with FEA analysis but the breadth of these peaks differs with different blades. I know this is due to damping but am having problems trying to figure out why certain blades harmonics are more damped (have a larger breadth) than others when the blades are all within the same tolerance limits (mass, stiffness, thickness, etc. ) I am new to developing a testing proceedure in this area though i do have experience in other vibration analysis, any ideas would be much appreciated. thanks





RE: Comparing Vibration Data (Turbofan Blades)
However, the mounting of your blades, or the mounting of the accelerometer to the blades (and thickness of adhesive) can also affect the apparent damping.
RE: Comparing Vibration Data (Turbofan Blades)
RE: Comparing Vibration Data (Turbofan Blades)