Solve Block

Forum|Forum|5 years ago
December 8, 2020
2 replies
1991 views

I try using Solve Block to find the solution of an equation by fixing "FS" to a constant value using the variables "alpha" and "w". But it doesn't seem like working even it shows no error message. Also, the unit for "alpha" supposed to be in "degrees".

The file is attached. The first part of the worksheet calculate FS using the correct "alpha" and "w" values. The solve block on 2nd page used the trial values of "alpha" and "w" to solve the equation. Please advise.

Thanks,

Vincent

1_Slot-Cut-Calculations.zip

Other

Best answer by Werner_E

@rkaiser

You forgot that you have to turn EVERY quantity which is dependent on alpha and/or w into a function of alpha and/or w. For example b, l and A.

Look at Freds sheet for a correct solution (you will have to let Prime recalculate the sheet after opening it).

For the solve block in question its not specifically necessary to make h, c and phi function arguments, but it might be a good idea to do (as Fred has done) to turn every calculation into a function of every input variable for more flexibility. I am not sure why @Fred_Kohlhepp did not made gamma and q function arguments as well.

R

rkaiser

4-Participant

Hi Vincent,

the solve block cannot work since you have two unknowns but only one equation. Also, you have to define the F_b and F_d as a function.

Hope this helps a little bit.

Regards

Rene

1_Slot-Cut-Calculations-V2.zip

W

Werner_E

Answer

25-Diamond I

@rkaiser

You forgot that you have to turn EVERY quantity which is dependent on alpha and/or w into a function of alpha and/or w. For example b, l and A.

Look at Freds sheet for a correct solution (you will have to let Prime recalculate the sheet after opening it).

For the solve block in question its not specifically necessary to make h, c and phi function arguments, but it might be a good idea to do (as Fred has done) to turn every calculation into a function of every input variable for more flexibility. I am not sure why @Fred_Kohlhepp did not made gamma and q function arguments as well.

F

Fred_Kohlhepp