Ultrasonic atomiser

antknee · May 4, 2012, 08:56

I'm trying to model an ultrasonic atomiser. As I'm new to ansys it is proving difficult. The atomiser is a ring of pzt attached to a ring of steel. The pzt is operated at its resonant frequency and the steel acts like a spring. The model is created/meshed and the pzt and steel data are ok. The current problem I have is that I don't know how to add a pilot node, so when I do a modal analysis the reference point for the vibration is the edge of the atomiser rather than its centre. I'm currently using Mechanical APDL but can switch to workbench. What should I do?

Thanks,

Ant.

antknee · May 5, 2012, 02:55

I've switched to workbench, the gui is more user friendly and it has a point mass option. However... how do I select a piezo/electroelastic analysis? I've used a named section to add the pzt as solid 227. But it defaults to a thermal and piezo analysis. Thanks, Ant.

May 4, 2012, 08:56	Ultrasonic atomiser	#1
antknee New Member Join Date: May 2012 Posts: 2 Rep Power: 0	I'm trying to model an ultrasonic atomiser. As I'm new to ansys it is proving difficult. The atomiser is a ring of pzt attached to a ring of steel. The pzt is operated at its resonant frequency and the steel acts like a spring. The model is created/meshed and the pzt and steel data are ok. The current problem I have is that I don't know how to add a pilot node, so when I do a modal analysis the reference point for the vibration is the edge of the atomiser rather than its centre. I'm currently using Mechanical APDL but can switch to workbench. What should I do? Thanks, Ant.

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May 5, 2012, 02:55		#2
antknee New Member Join Date: May 2012 Posts: 2 Rep Power: 0	I've switched to workbench, the gui is more user friendly and it has a point mass option. However... how do I select a piezo/electroelastic analysis? I've used a named section to add the pzt as solid 227. But it defaults to a thermal and piezo analysis. Thanks, Ant.