1-Visitor

Question

how to slove the equation set

Forum|Forum|13 years ago
March 29, 2013
16 replies
5181 views

there is a equation set,how to use mc to slove

slove and QQ%E6%88%AA%E5%9B%BE20130329164815.jpg

Other

25-Diamond I

Mathcad was not able to find a symbolic solution (see attached).

Maybe more luck if you try clever substitutions / rewriting the equations, using keyword assume (e.g. assume, ALL>0). Symbolic evaluations can get tricky very quick.

For a numeric solution you would have to provide values for the involved five constants and guess values for the two solved for variables. Find in the attached sheet a solve block which was parameterized and turned into aa easy to handle function.

1_how_2-xmcdz.zip

Author

1-Visitor

if we eliminate phi2 QQ%E6%88%AA%E5%9B%BE20130329221137.jpg

we let QQ%E6%88%AA%E5%9B%BE20130329221228.jpg and because

so we can slove

above all ,we can slove in paper ,but how can we slove in mathcad?

19-Tanzanite

lee0714 李 wrote:

... but how can we slove in mathcad?

Like so?

Alan

1_howb-xmcd.zip

24-Ruby IV

Sorry.

I want at first know what physical phenomenon described by a system of equations, and then try to solve this system.

Author

1-Visitor

This system of equations is the mechanical principle of four bar linkage with complex number vector equations are listed,so it must be reasonable。

24-Ruby IV

lee0714 李 wrote:
This system of equations is the mechanical principle of four bar linkage

Welcome to the Group

http://communities.ptc.com/groups/kinematic-models-in-mathcad

...with complex number vector equations are listed,so it must be reasonable

Show the picture please