## How can I generate differential algebraic equation...

Asked by:

Hi,

I'm new to Maplesim and Maple. I've modeled a planar slider-crank mechanism in Maplesim and it works.

Now I want to extract the equations of motion (DAE) for further analysis. From 'Template' --> 'Worksheet', I used A:-GetEquations() to try to get the DAE. However, the equations are too long and not shown. Moreover, I don't know what coordinates Maplesim used to generated those 'unseen' equations. Here are the equations that can be hand-derived:

where I and m represent inertia and mass respectively. Theta, beta and s are the chosen generalized coordiantes, s_theta is sin(theta), c_theta is cos(theta)s_beta is sin(beta), c_beta is cos(beta). Rx and Ry are lagrange multipliers representing the reaction force in the pin between the crank and the connecting rod.

How can I generate such DAEs using Maplesim? Thank you very much.

## MapleSim Setparameters in matrixform...

Asked by:

Hi,

I'm trying to change with a Maple Worksheet the parameters of a MapleSim Model in Real-matrices format.

is there any way to do that?

actually i get the failure note:

<<Error, (in SetParameters) non-vectorized values in vector parameters: [list= ""]>>

Thank You

Regards
Johann

## User's Guide example, Simple Hydraulic System Net...

Asked by:

I am a beginner of MapleSim. I study the MapleSim User Guide. I follow the Tutor 8:Modeling Hydraulic System. But the following issue occurs, as shown in the picture. I bet I follow the guide carefully.

Also, I find that if I open the User's Guide example,Chapter 6, Analysis of Simple Hydraulic System Network, which is the standard example,I simulate it and it works well. But if I delete the probe, and attach a probe at the same place , selecting same values to measure, and simulate again, it failed, giving the same error description. I need your help,please.

problem_with_Analysis_of_Simple_Hydraulic_Network.msim

 Page 1 of 1
﻿