Good evening ;
Today I have measured the operational modal analysis for exhaust comments with engine RPM lod Idle to maximum.
1.measured geometry point 15 points
2. I have only 5 accelerometer
Conducting our test there are 3 measurements for geometry point
1.measure 1 (point 1 to point 5)
2.measure 2 (point 6 to point 10)
3.measure 3 (point 11 to point 15)
Measurements conducting same condition.
But I can't compile data for Op.data processing the operational deflection shape.
How to solve the problem. Can you explain pls.
Hello, If you have no common channel in all 3 runs this cannot be done.
There is no way to maintain a phase relationship between the runs without a common reference channel (that is fairly active) in all the runs.
Here I show 4 runs with a common reference channel that I can turn on for all runs. In this manner I can calculate the crosspowers on Op. Data Calculation and use them on Op. Data Selection.