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Finding Displcement at any angle other than the principal axes

Posted 17 janv. 2018, 20:10 UTC−5 Structural & Acoustics, Structural Mechanics Version 5.3a 2 Replies

Ganesh Patil
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I have done static simulation and I can find displacement in x,y and z direction using u,v,w option. But how do I find displacement in the direction at an angle to any of the above x,y,z axes.

E.g. displacement in the direction of an axis,say x1, and that axis x1 is at 30 degrees to original x axis.

2 Replies Last Post 18 janv. 2018, 11:45 UTC−5
Henrik Sönnerlind COMSOL Employee

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Posted: 7 years ago 18 janv. 2018, 10:52 UTC−5

Hi,

You can for example write u*cos(pi/6)+v*sin(pi/6).

For less trivial angles, set a result parameter (Results->Parameters) phi to the intended angle like 17[deg] and write u*cos(phi)+v*sin(phi).

Regards,

Henrik

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Henrik Sönnerlind
COMSOL
Hi, You can for example write *u\*cos(pi/6)+v\*sin(pi/6)*. For less trivial angles, set a result parameter (Results->Parameters) *phi* to the intended angle like *17[deg]* and write *u\*cos(phi)+v\*sin(phi)*. Regards, Henrik
Dave Greve
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Posted: 7 years ago 18 janv. 2018, 11:45 UTC−5

As Sherlock Holmes said, "the answer lies in trigonometry."

As Sherlock Holmes said, "the answer lies in trigonometry."

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