Wrap a sinusoid around the circumference of a circle

Swulf shared this question 9 years ago
Answered

Hello,


I am stuck on finding a way to 'wrap' a sinusoid around the circumference of a circle.


I am performing an investigation where I need to consider the radial surface features of a disk, which would obviously normally be a simple circle (i.e. the radius would be constant). Instead I want to consider the effect of periodic errors in the radius, so that it varies sinusoidally with rotation angle of the disk.


I am unable to come up with a way to create such an object in Geogebra. Can anyone give me an idea how to accomplish this?


I hope this is clear; if not, maybe I can sketch what I mean...


Thank you,


Swulf

Comments (2)

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1

Hello,


I am stuck on finding a way to 'wrap' a sinusoid around the circumference of a circle.


I am performing an investigation where I need to consider the radial surface features of a disk, which would obviously normally be a simple circle (i.e. the radius would be constant). Instead I want to consider the effect of periodic errors in the radius, so that it varies sinusoidally with rotation angle of the disk.


I am unable to come up with a way to create such an object in Geogebra. Can anyone give me an idea how to accomplish this?


I hope this is clear; if not, maybe I can sketch what I mean...


Thank you,


Swulf

if you are talking about ro= f(alfa) you can parametrize to f(alfa)*cos(alfa) f(alfa)*sin(alfa)

saludos

https://ggbm.at/553205

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1

Thank you very much, this is exactly what I was trying to learn how to do! :D


Much appreciate your help,


Swulf

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