Measuring pressure on a rotating surface

Donegalstevie · July 24, 2014, 08:01

Hi Everyone,

I'm simulating a helicopter rotor. As the blades rotate around a shaft axis they also morph (change in pitch).
Can anyone tell me how to measure the pressure on the surface of a blade at 87% along the blade while it rotates.

ggulgulia · July 25, 2014, 03:13

you can take mass flow averaged pressure report and assign the blade boundaries before you give the run and also create a monitor plot for the same.

me3840 · July 25, 2014, 18:35

I think his question was more pretaining to the 87% blade distance issue. If that's the case you can make a circular section cut from a derived part and only select the blade surface as the input. That should make just a 'ring' going around the blade at a specific radius.

Donegalstevie · July 26, 2014, 15:14

Thanks. That seems perfect. How can I export the pressure measurements?

me3840 · July 27, 2014, 22:26

Export them for what?

Donegalstevie · July 28, 2014, 15:08

To create graphs in Matlab

me3840 · July 28, 2014, 18:56

In that case just monitor the report and plot it, and you should be able to export the plot as a table.

Donegalstevie · July 29, 2014, 07:24

Thanks. You have been a big help.

July 24, 2014, 08:01	Measuring pressure on a rotating surface	#1
Donegalstevie New Member Stephen O'Donnell Join Date: Jun 2014 Location: Ireland Posts: 7 Rep Power: 12	Hi Everyone, I'm simulating a helicopter rotor. As the blades rotate around a shaft axis they also morph (change in pitch). Can anyone tell me how to measure the pressure on the surface of a blade at 87% along the blade while it rotates.

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July 25, 2014, 03:13		#2
ggulgulia Senior Member Gajendra Gulgulia Join Date: Apr 2013 Location: Munich Posts: 144 Rep Power: 13	you can take mass flow averaged pressure report and assign the blade boundaries before you give the run and also create a monitor plot for the same.

July 25, 2014, 18:35		#3
me3840 Senior Member Join Date: Nov 2010 Location: USA Posts: 1,232 Rep Power: 25	I think his question was more pretaining to the 87% blade distance issue. If that's the case you can make a circular section cut from a derived part and only select the blade surface as the input. That should make just a 'ring' going around the blade at a specific radius.

July 26, 2014, 15:14		#4
Donegalstevie New Member Stephen O'Donnell Join Date: Jun 2014 Location: Ireland Posts: 7 Rep Power: 12	Thanks. That seems perfect. How can I export the pressure measurements?

July 27, 2014, 22:26		#5
me3840 Senior Member Join Date: Nov 2010 Location: USA Posts: 1,232 Rep Power: 25	Export them for what?

July 28, 2014, 15:08		#6
Donegalstevie New Member Stephen O'Donnell Join Date: Jun 2014 Location: Ireland Posts: 7 Rep Power: 12	To create graphs in Matlab

July 28, 2014, 18:56		#7
me3840 Senior Member Join Date: Nov 2010 Location: USA Posts: 1,232 Rep Power: 25	In that case just monitor the report and plot it, and you should be able to export the plot as a table.

July 29, 2014, 07:24		#8
Donegalstevie New Member Stephen O'Donnell Join Date: Jun 2014 Location: Ireland Posts: 7 Rep Power: 12	Thanks. You have been a big help.