search

openmodal / OpenModal

Open source experimental modal analysis software.
http://www.openmodal.com
Other
104 stars 46 forks source link

Triaxial accelerometers, response axis selection #47

Open edubueno91 opened 5 years ago

edubueno91 commented 5 years ago

Hello,

I am trying to conduct a modal analysis with triaxial accelerometers w/out changing any cabling in the process. I have defined a NIMAX task with 3 accelerometers and with the accelerometers connected according to the local coordinate system of the response node (ch0-x, ch1-y and ch2-z). Nevertheless when I try to carry out the measurements there is no way to define what accelerometer we want to use as response for the recording and estimators. By default the ch0 is selected (see second screenshot below) and I don’t see any option to change it. Could you help me?

scr1 scr2

miha-pirnat commented 5 years ago

Maybe it could be easily changed in the source code. @matmr can comment on that.

edubueno91 commented 5 years ago

Thank you for the response @miha-pirnat So for the moment, for a roving hammer analysis, the best option would be to carry out the excitation for all the reference nodes for one accelerometer and then physically change the orientation of that accelerometer and repeat until the 3 axis are captured for all the excitation points, don't you think?

miha-pirnat commented 5 years ago

yes, i think that is the best option.