HELP NEEDED FOR GEAR EQUATION CURVE

[shiva_cit100]

DEAR FRIDENDS ,


IAM NEW TO GEARMODELLING IN PROE. I HAVE ONE MODEL FROM MY FRIDEND IN THAT IAM NOT ABLE UNDERSTAND EQUATION CURVE. IAM ATTACHING THE PICTURE AND EQUATION KINDLY ANY EXPLAIN THE VALUES FOR EACH PARAMETER.


BY





SHIVAKUMARView attachment 2624








MY EQUATION CURVE


View attachment 2625


EQUATION IS
/* For cylindrical coordinate system, enter parametric equation <?:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" />
/* in terms of t (which will vary from 0 to 1) for r, theta and z
/* For example: for a circle in x-y plane, centered at origin
/* and radius = 4, the parametric equations will be:
/* r = 4
/* theta = t * 360
/* z = 0
/*---------------------------------------------------------- ---------
<B style="mso-bidi-font-weight: normal">GAMMA = 2 * asin ( (ZDICKE*tan(BETTA))/(2.0*RT) )[/B]
<B style="mso-bidi-font-weight: normal">z = ZDICKE*( t - 0.5)[/B]
<B style="mso-bidi-font-weight: normal">r= RT[/B]
<B style="mso-bidi-font-weight: normal">theta = GAMMA*(t -0.5)[/B]





WHEN I COPY AND PASTE THIS EQUATION IT GIVING ERROR LIKE THIS



GAMMA = 2 * asin ( (ZDICKE*tan(BETTA))/(2.0*RT) )
/* ERROR: Invalid symbol 'ZDICKE' found.
z = ZDICKE*( t - 0.5)
/* ERROR: Invalid symbol 'ZDICKE' found.
r= RT
/* ERROR: Invalid symbol 'RT' found.
theta = GAMMA*(t -0.5)
/* ERROR: Invalid symbol 'GAMMA' found.






THAN WHAT IS THE VALUE GIVEN FOR


*ZDICKE


* RT


GAMMA





I REQUEST EVERY ONE KINDLY HELP TO ME. IT IS MOST USEFUL AND MOST URGENT ALSO


BY


SHIVAKUMAR

 

[Baptie]

ZDICKE & RT will have been names given to dimensions in the original model


If you edit the original model and select edit properties for dimesions you should find some of them have been given names.


When you know which dimensions were called ZDICKE & RT simply change the formulas to refer to the new dimension name in your new model.


.... I think

 

[dept664]

Shivakumar,





Go to this web site: www.blbeach.com/proe_models.html


There you will find two spur gear models, one small and one large. Use these. They work pretty slick and are easily modifiable with easy-to-understand parameters. You only need to modify the DP, number of teeth, and one other that I forget right now. Just pay attention to the number of teeth and DP, as they tend to get annoyed when you put in too many teeth on the small one, or too few teeth on the large one.


Good luck.


Gary

 

[phoxeoy]

Create some parameters called:


major_dia, base_dia, and start_angle


Then create Datum Curve, By Equation. Then type in:


solve


gamma=t*(sqrt((major_dia/2)^2(base_dia/2)^2))


for gamma


r=sqrt(gamma^2+(base_dia/2)^2)


theta=start_angle+(gamma*(360/(2*pi*(base_dia/2)))atan(gamma /(base_dia/2)))


z=0


You may need to play with the start_angle parameter to position the Curve where you want it.

 

[Niceonetidy]

How do you change the number of teeth? And number shown?

I have a similar model that used to work with 200i. It will not work with Wildfire 2, Can anyone help sort this model?


Thanks!