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en-us2020 Maplesoft, A Division of Waterloo Maple Inc.Maplesoft Document SystemFri, 25 Sep 2020 13:49:12 GMTFri, 25 Sep 2020 13:49:12 GMTMapleSim Questions and Posts on MaplePrimeshttp://www.mapleprimes.com/images/mapleprimeswhite.jpgMaplePrimes - MapleSim Posts and Questions
http://www.mapleprimes.com/tags/MapleSim
internal error: unable to find matching (in MapleSim:-CreateDataRecord)
https://www.mapleprimes.com/questions/230624-Internal-Error-Unable-To-Find-Matching-?ref=Feed:MaplePrimes:Tagged With MapleSim
<p>Hi</p>
<p>I am trying to create a simulation of a UR5e, I have added a spring dampening systen in order to simulate the imput of external forces and torques. However I get a strange error for which I could not find an awnser for on the web.</p>
<p>The closest was </p>
<p>https://www.mapleprimes.com/questions/203860-Compile-Maplesim-Model-To-Ccode</p>
<p>However it is quite old and not entirely a match. </p>
<p>I get the following output</p>
<p><img src="/view.aspx?sf=230624_question/Question_to_maplesim.png"></p>
<p>More information</p>
<p>Maplesim 2020</p>
<p>64 bit version</p>
<p>Windows 10</p>
<p>RAM - 16 GB</p>
<p>Do anybody know a solution for this?</p>
<p>Mvh</p>
<p>Eric Ragnarsson</p>
<p> </p>
<p>Hi</p>
<p>I am trying to create a simulation of a UR5e, I have added a spring dampening systen in order to simulate the imput of external forces and torques. However I get a strange error for which I could not find an awnser for on the web.</p>
<p>The closest was </p>
<p>https://www.mapleprimes.com/questions/203860-Compile-Maplesim-Model-To-Ccode</p>
<p>However it is quite old and not entirely a match. </p>
<p>I get the following output</p>
<p><img src="/view.aspx?sf=230624_question/Question_to_maplesim.png" /></p>
<p>More information</p>
<p>Maplesim 2020</p>
<p>64 bit version</p>
<p>Windows 10</p>
<p>RAM - 16 GB</p>
<p>Do anybody know a solution for this?</p>
<p>Mvh</p>
<p>Eric Ragnarsson</p>
<p> </p>
230624Thu, 24 Sep 2020 11:41:28 ZEric RagnarssonEric RagnarssonHow can I generate differential algebraic equations with generalized coordinates in Maplesim?
https://www.mapleprimes.com/questions/230502-How-Can-I-Generate-Differential-Algebraic?ref=Feed:MaplePrimes:Tagged With MapleSim
<p>Hi,</p>
<p>I'm new to Maplesim and Maple. I've modeled a planar slider-crank mechanism in Maplesim and it works.</p>
<p><img src="/view.aspx?sf=230502_question/1.jpg"></p>
<p>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:</p>
<p><img src="/view.aspx?sf=230502_question/2.jpg"></p>
<p>where <em>I</em> and <em>m</em> represent inertia and mass respectively. <em>Theta, beta </em>and<em> s</em> are the chosen generalized coordiantes, <em>s_theta</em> is <em>sin(theta)</em>, <em>c_theta</em> is <em>cos(theta)</em>, <em>s_beta</em> is <em>sin(beta)</em>, <em>c_beta</em> is <em>cos(beta)</em>. <em>Rx</em> and <em>Ry</em> are lagrange multipliers representing the reaction force in the pin between the crank and the connecting rod.</p>
<p>How can I generate such DAEs using Maplesim? Thank you very much.</p>
<p>Hi,</p>
<p>I'm new to Maplesim and Maple. I've modeled a planar slider-crank mechanism in Maplesim and it works.</p>
<p><img src="/view.aspx?sf=230502_question/1.jpg" /></p>
<p>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:</p>
<p><img src="/view.aspx?sf=230502_question/2.jpg" /></p>
<p>where <em>I</em> and <em>m</em> represent inertia and mass respectively. <em>Theta, beta </em>and<em> s</em> are the chosen generalized coordiantes, <em>s_theta</em> is <em>sin(theta)</em>, <em>c_theta</em> is <em>cos(theta)</em>, <em>s_beta</em> is <em>sin(beta)</em>, <em>c_beta</em> is <em>cos(beta)</em>. <em>Rx</em> and <em>Ry</em> are lagrange multipliers representing the reaction force in the pin between the crank and the connecting rod.</p>
<p>How can I generate such DAEs using Maplesim? Thank you very much.</p>
230502Tue, 08 Sep 2020 14:04:07 ZMyTempMyTempUse of MapleSim to teach Vector Analysis
https://www.mapleprimes.com/posts/213129-Use-Of-MapleSim-To-Teach-Vector-Analysis?ref=Feed:MaplePrimes:Tagged With MapleSim
<p>In the present work we are going to demonstrate the importance of the study of vector analysis, with modeling and simulation criteria, using the MapleSim scientific software from MapleSoft. Nowadays, the majority of higher education centers direct their teaching of vector analysis in an abstract way and there are few or no teachers who carry out applications using modeling and simulation. (In spanish)</p>
<p><a href="/view.aspx?sf=213129_post/IPN_CICATA_2020.pdf">IPN_CICATA_2020.pdf</a></p>
<p><a href="/view.aspx?sf=213129_post/Expo_MapleSim_CICATA.zip">Expo_MapleSim_CICATA.zip</a></p>
<p><iframe allowfullscreen="" height="315" src="https://www.youtube.com/embed/Y2Mr-Qr1BIc" width="560"></iframe></p>
<p> </p>
<p>In the present work we are going to demonstrate the importance of the study of vector analysis, with modeling and simulation criteria, using the MapleSim scientific software from MapleSoft. Nowadays, the majority of higher education centers direct their teaching of vector analysis in an abstract way and there are few or no teachers who carry out applications using modeling and simulation. (In spanish)</p>
<p><a href="/view.aspx?sf=213129_post/IPN_CICATA_2020.pdf">IPN_CICATA_2020.pdf</a></p>
<p><a href="/view.aspx?sf=213129_post/Expo_MapleSim_CICATA.zip">Expo_MapleSim_CICATA.zip</a></p>
<p><iframe allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/Y2Mr-Qr1BIc" width="560"></iframe></p>
<p> </p>
213129Thu, 27 Aug 2020 00:44:48 ZLenin Araujo CastilloLenin Araujo CastilloHow to inverse interpolate a 2D lookup table in MapleSim?
https://www.mapleprimes.com/questions/230043-How-To-Inverse-Interpolate-A-2D-Lookup?ref=Feed:MaplePrimes:Tagged With MapleSim
<p>Dear Community,</p>
<p>I would like to have an inverse interpolation with a 2D lookup table in MapleSim. The usual 2D lookup interpolation has u1 column values, and u2 row values, and a corresponding y table values, i.e. y = f(u1,u2). Now I would like to go the reverse way. Suppose I know y, and u2, and I would like to get u1. How can I implement this in MapleSim? An additional information is, that the 3D surface represented by the f(u1, u2) function is a smooth, slightly curved, monotonically sloping surface, so to any y value a unique pair of u1 and u2 values belong.</p>
<p> </p>
<p>With my specific data, which are attached in the TestVLP.xlsx file:</p>
<p> </p>
<ul>
<li>u2 values are: 1<sup>st</sup> row, cells 2 .. 14</li>
<li>u1 values are 1<sup>st</sup> column, rows 2 .. 11</li>
<li>tabulated values are all the rest, i.e. from cell(2,2) .. cell(11,14)</li>
</ul>
<p> </p>
<p>Now for my case:</p>
<p> </p>
<ul>
<li>u2 = 42000.0</li>
<li>y = 94.5614</li>
</ul>
<p> </p>
<p>How much is u1? I know the correct answer from elsewhere, it should be something very close to u1 ~ 85. This y value is in the rectangle bordered by columns 7 .. 8 and rows 5 .. 6 in the Excel file.</p>
<p> </p>
<p>So my question is how do I correctly implement this in MapleSim? As visible from the attached TestInverse2DInterpolation.msim file I tried to do it with an Inverse Block Constraints component and a horizontally flipped 2D Lookup Table (VLP) and Constants for y and u2, but upon running MapleSim I get an error message that no solution is found, although the solution is relatively easy and straightforward. May I ask you to have a look at it, what can be the problem here, what do I do wrong? I’m using MapleSim 2019.2.</p>
<p> </p>
<p>Your kind help is appreciated in advance</p>
<p>best regards</p>
<p> </p>
<p>Andras</p>
<p><a href="/view.aspx?sf=230043_question/TestInverse2DInterpolation.msim">TestInverse2DInterpolation.msim</a></p>
<p><a href="/view.aspx?sf=230043_question/TestVLP.xlsx">TestVLP.xlsx</a></p>
<p>Dear Community,</p>
<p>I would like to have an inverse interpolation with a 2D lookup table in MapleSim. The usual 2D lookup interpolation has u1 column values, and u2 row values, and a corresponding y table values, i.e. y = f(u1,u2). Now I would like to go the reverse way. Suppose I know y, and u2, and I would like to get u1. How can I implement this in MapleSim? An additional information is, that the 3D surface represented by the f(u1, u2) function is a smooth, slightly curved, monotonically sloping surface, so to any y value a unique pair of u1 and u2 values belong.</p>
<p> </p>
<p>With my specific data, which are attached in the TestVLP.xlsx file:</p>
<p> </p>
<ul>
<li>u2 values are: 1<sup>st</sup> row, cells 2 .. 14</li>
<li>u1 values are 1<sup>st</sup> column, rows 2 .. 11</li>
<li>tabulated values are all the rest, i.e. from cell(2,2) .. cell(11,14)</li>
</ul>
<p> </p>
<p>Now for my case:</p>
<p> </p>
<ul>
<li>u2 = 42000.0</li>
<li>y = 94.5614</li>
</ul>
<p> </p>
<p>How much is u1? I know the correct answer from elsewhere, it should be something very close to u1 ~ 85. This y value is in the rectangle bordered by columns 7 .. 8 and rows 5 .. 6 in the Excel file.</p>
<p> </p>
<p>So my question is how do I correctly implement this in MapleSim? As visible from the attached TestInverse2DInterpolation.msim file I tried to do it with an Inverse Block Constraints component and a horizontally flipped 2D Lookup Table (VLP) and Constants for y and u2, but upon running MapleSim I get an error message that no solution is found, although the solution is relatively easy and straightforward. May I ask you to have a look at it, what can be the problem here, what do I do wrong? I’m using MapleSim 2019.2.</p>
<p> </p>
<p>Your kind help is appreciated in advance</p>
<p>best regards</p>
<p> </p>
<p>Andras</p>
<p><a href="/view.aspx?sf=230043_question/TestInverse2DInterpolation.msim">TestInverse2DInterpolation.msim</a></p>
<p><a href="/view.aspx?sf=230043_question/TestVLP.xlsx">TestVLP.xlsx</a></p>
230043Thu, 09 Jul 2020 11:15:23 Za_simsima_simsimError in Battery operated 4 wheeled driven electric vehicle
https://www.mapleprimes.com/questions/229877-Error-In-Battery-Operated-4-Wheeled?ref=Feed:MaplePrimes:Tagged With MapleSim
<p>Hi all,</p>
<p>I am new to maplesim and trying to learn it.</p>
<p>While simulation of the battery operated 4 wheeled driven electric vehicle </p>
<p>it tells can't find solution.</p>
<p> </p>
<p> </p>
<p>Same time if i connect a fixed reference all four wheels are running (same place) but not moving since the frame fixed.</p>
<p> </p>
<p>HELP ME TO SOLVE THIS.</p>
<p> </p>
<p>thank you..</p>
<p> </p>
<p>Hi all,</p>
<p>I am new to maplesim and trying to learn it.</p>
<p>While simulation of the battery operated 4 wheeled driven electric vehicle </p>
<p>it tells can't find solution.</p>
<p> </p>
<p> </p>
<p>Same time if i connect a fixed reference all four wheels are running (same place) but not moving since the frame fixed.</p>
<p> </p>
<p>HELP ME TO SOLVE THIS.</p>
<p> </p>
<p>thank you..</p>
<p> </p>
229877Mon, 22 Jun 2020 06:10:57 ZpandiarajgpandiarajgHow to compare measured and calculated data in MapleSim?
https://www.mapleprimes.com/questions/229802-How-To-Compare-Measured-And-Calculated?ref=Feed:MaplePrimes:Tagged With MapleSim
<p>Dear Community,</p>
<p>I have a simulation in MapleSim, and I have a probe in the system, for which measured data are also available. How can I load these measured data into MapleSim and compare them to the calculated results (probe data) visually? (Preferably in the "Analysis Window: Simulation Results" which pops up by pressing F6)</p>
<p>Tx for the kind help in advance,</p>
<p>best regards,</p>
<p>Andras</p>
<p> </p>
<p>Dear Community,</p>
<p>I have a simulation in MapleSim, and I have a probe in the system, for which measured data are also available. How can I load these measured data into MapleSim and compare them to the calculated results (probe data) visually? (Preferably in the "Analysis Window: Simulation Results" which pops up by pressing F6)</p>
<p>Tx for the kind help in advance,</p>
<p>best regards,</p>
<p>Andras</p>
<p> </p>
229802Mon, 15 Jun 2020 06:14:42 Za_simsima_simsim