Oasys GSA - Grasshopper2024-03-28T14:28:36Zhttps://www.grasshopper3d.com/forum/topics/oasys-gsa?groupUrl=geometrygym&groupId=2985220%3AGroup%3A118521&id=2985220%3ATopic%3A619935&feed=yes&xn_auth=noHi Ryan,
Sorry, there was a…tag:www.grasshopper3d.com,2019-03-30:2985220:Comment:19749652019-03-30T19:50:03.573ZJon Mirtschinhttps://www.grasshopper3d.com/profile/JonMirtschin
<p>Hi Ryan, </p>
<p></p>
<p>Sorry, there was a problem with the installed. I just updated the links on the downloads page at <a href="http://www.geometrygym.com" target="_blank">www.geometrygym.com</a> Let me know if that doesn't resolve the issue.</p>
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<p>Cheers,</p>
<p></p>
<p>Jon</p>
<p>Hi Ryan, </p>
<p></p>
<p>Sorry, there was a problem with the installed. I just updated the links on the downloads page at <a href="http://www.geometrygym.com" target="_blank">www.geometrygym.com</a> Let me know if that doesn't resolve the issue.</p>
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<p>Cheers,</p>
<p></p>
<p>Jon</p> Hello Jon, I tried to use the…tag:www.grasshopper3d.com,2019-03-30:2985220:Comment:19747852019-03-30T13:53:22.539ZRyanhttps://www.grasshopper3d.com/profile/Ryan502
<p>Hello Jon, I tried to use the 110604 force density to do the form finding analysis, but as I opened the file, all other components seemed working fine except for the ggGSAformfinding one, as it gave this warning: </p>
<p>1. Could not load file or assembly 'Interop.Gsa_9_0, Version=9.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified. at GGYM.Structure.StructureAnalysisModel.(BakeOptions )<br></br> at…</p>
<p>Hello Jon, I tried to use the 110604 force density to do the form finding analysis, but as I opened the file, all other components seemed working fine except for the ggGSAformfinding one, as it gave this warning: </p>
<p>1. Could not load file or assembly 'Interop.Gsa_9_0, Version=9.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified. at GGYM.Structure.StructureAnalysisModel.(BakeOptions )<br/> at GGYM.ggGHUtil.formFind(BakeOptions bakeOptions, Boolean closeFile, Int32 task, List`1 prestress, List`1 tasks, List`1 extractResults, List`1 results)<br/> at GGYM.GH.Structure.ssiFormFinding.SolveInstance(IGH_DataAccess DA)</p>
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<p>I do have the latest GSA in my computer, as well as Bullant, and GS plugin for grasshopper, I was wondering what could be the cause of this?</p>
<p><a href="https://storage.ning.com/topology/rest/1.0/file/get/1723668144?profile=original" target="_blank" rel="noopener"><img src="https://storage.ning.com/topology/rest/1.0/file/get/1723682018?profile=RESIZE_710x" class="align-full" width="435" height="201"/></a></p> Yes, you might very well get…tag:www.grasshopper3d.com,2013-09-13:2985220:Comment:9142552013-09-13T12:46:05.497ZJon Mirtschinhttps://www.grasshopper3d.com/profile/JonMirtschin
<p>Yes, you might very well get high (and not so accurate) stress concentrations at locked nodes or load application points. This is typically why a free body is cut around the connection, so that these can be disregarded and you get more realistic results at the area of interest.</p>
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<p>Cheers,</p>
<p></p>
<p>Jon</p>
<p>Yes, you might very well get high (and not so accurate) stress concentrations at locked nodes or load application points. This is typically why a free body is cut around the connection, so that these can be disregarded and you get more realistic results at the area of interest.</p>
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<p>Cheers,</p>
<p></p>
<p>Jon</p> Hi again!
Thanks for the re…tag:www.grasshopper3d.com,2013-09-13:2985220:Comment:9144112013-09-13T12:29:48.600ZLukas Nordströmhttps://www.grasshopper3d.com/profile/LukasNordstroem
<p>Hi again! </p>
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<p>Thanks for the reply! Because it is only possible to model shell mesh elements we think of the sphere as hollow. </p>
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<p>The combining of two models in one is actually kind of our goal to this experiment: to, in one model, extract the results from a global form (axial loads etc) and project them onto local connections, in order to dimension those. The nodes (our simple sphere in this case) could for example be the connection in a Mero system, or if you…</p>
<p>Hi again! </p>
<p></p>
<p>Thanks for the reply! Because it is only possible to model shell mesh elements we think of the sphere as hollow. </p>
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<p>The combining of two models in one is actually kind of our goal to this experiment: to, in one model, extract the results from a global form (axial loads etc) and project them onto local connections, in order to dimension those. The nodes (our simple sphere in this case) could for example be the connection in a Mero system, or if you recall the Serpentine, a mesh of an individual element. We hope with this type of modelling to be able to check a varying connection is a few places in a global structure, without having to mesh the whole structure. Does this sound promising at all? :)</p>
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<p>Yes as you say we try to model a two-in-one model gh def, global and local. Your suggestion to lock one of the cutplane seams reasonable. In this first def. we simplify this with some approximate nodes, see def. Although we seem to get some strange results, with a really high stress concentration over the locked nodes compared to the load applied nodes.</p>
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<p>Do you have any suggestions how this could be explained? Is it something wrong in the gh def? </p>
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<p>Thanks for all the help, really appreciated :) </p> Hi Lukas,
Thanks for posting…tag:www.grasshopper3d.com,2013-09-12:2985220:Comment:9138532013-09-12T20:52:21.416ZJon Mirtschinhttps://www.grasshopper3d.com/profile/JonMirtschin
<p>Hi Lukas,</p>
<p></p>
<p>Thanks for posting. It's a really interesting question. Is the sphere a solid in real life? Using FEA with brick (or 3d) elements is most appropriate if it's not thin walled. Unfortunately GSA doesn't have these (at least yet, maybe one day).</p>
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<p>It's interesting you have combined models in one gh def (I assume maybe this was for posting). I do plan to try and enable different database for each canvas soon.</p>
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<p>So, I haven't done so much…</p>
<p>Hi Lukas,</p>
<p></p>
<p>Thanks for posting. It's a really interesting question. Is the sphere a solid in real life? Using FEA with brick (or 3d) elements is most appropriate if it's not thin walled. Unfortunately GSA doesn't have these (at least yet, maybe one day).</p>
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<p>It's interesting you have combined models in one gh def (I assume maybe this was for posting). I do plan to try and enable different database for each canvas soon.</p>
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<p>So, I haven't done so much connection FEA, but my experience we would cut a free body diagram away from the area of interest. So the I beams coming in would also be meshed as plates (for at least a short extent). Then one cut plane would be restrained, the determined actions applied to the other free ends and you can get results.</p>
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<p>I hope this helps a little,</p>
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<p>Jon</p>
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<p></p> Hi Jon,
We are trying to set…tag:www.grasshopper3d.com,2013-09-12:2985220:Comment:9136782013-09-12T16:39:33.689ZLukas Nordströmhttps://www.grasshopper3d.com/profile/LukasNordstroem
<p>Hi Jon,</p>
<p></p>
<p>We are trying to set up a model for analysis on both global and local scale simultaneously. This to both get a overview of the model but also see how this affects the connections of the elements. </p>
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<p>As a first start we have modeled a three bar structure with a ball (mero) type of connection, simple as possible. The ball is analysed as a mesh and applied with the normal forces generated from the bars in the global model. We have some problem how to define…</p>
<p>Hi Jon,</p>
<p></p>
<p>We are trying to set up a model for analysis on both global and local scale simultaneously. This to both get a overview of the model but also see how this affects the connections of the elements. </p>
<p></p>
<p>As a first start we have modeled a three bar structure with a ball (mero) type of connection, simple as possible. The ball is analysed as a mesh and applied with the normal forces generated from the bars in the global model. We have some problem how to define the locked nodes for the connector. How do you lock its position in a correct way? </p>
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<p>Looking forward to the answer :) </p>
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<p>Lukas</p>
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<p></p> Here's the recording of the w…tag:www.grasshopper3d.com,2013-08-30:2985220:Comment:9070402013-08-30T11:14:55.280ZJon Mirtschinhttps://www.grasshopper3d.com/profile/JonMirtschin
<p>Here's the recording of the webinar.</p>
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<p><iframe width="560" height="315" src="//www.youtube.com/embed/jcDPeaKP8n0?wmode=opaque" frameborder="0"></iframe>
</p>
<p>Here's the recording of the webinar.</p>
<p></p>
<p><iframe width="560" height="315" src="//www.youtube.com/embed/jcDPeaKP8n0?wmode=opaque" frameborder="0"></iframe>
</p> Oasys Webinar : Linking GSA w…tag:www.grasshopper3d.com,2013-07-31:2985220:Comment:8942682013-07-31T04:53:13.619ZJon Mirtschinhttps://www.grasshopper3d.com/profile/JonMirtschin
<p><span>Oasys Webinar : Linking GSA with Grasshopper (including API execution of GSA) 9th August</span> <a class="twitter-timeline-link" dir="ltr" href="http://t.co/6eP6doqAby" rel="nofollow" target="_blank" title="http://www.oasys-software.com/webinar?id=82/"><span class="invisible">http://www.</span><span class="js-display-url">oasys-software.com/webinar?id=82/</span><span class="tco-ellipsis"><span class="invisible"> </span></span></a></p>
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<p>Will be demonstrating using Grasshopper…</p>
<p><span>Oasys Webinar : Linking GSA with Grasshopper (including API execution of GSA) 9th August</span> <a href="http://t.co/6eP6doqAby" class="twitter-timeline-link" target="_blank" title="http://www.oasys-software.com/webinar?id=82/" dir="ltr" rel="nofollow"><span class="invisible">http://www.</span><span class="js-display-url">oasys-software.com/webinar?id=82/</span><span class="tco-ellipsis"><span class="invisible"> </span></span></a></p>
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<p>Will be demonstrating using Grasshopper as a user interface for GSA, as well as explaining how to develop similar external interaction using the COM interface.</p> http://www.grasshopper3d.com/…tag:www.grasshopper3d.com,2013-06-24:2985220:Comment:8767252013-06-24T12:32:45.789ZJon Mirtschinhttps://www.grasshopper3d.com/profile/JonMirtschin
<p><a href="http://www.grasshopper3d.com/group/geometrygym/forum/topics/cable-properties">http://www.grasshopper3d.com/group/geometrygym/forum/topics/cable-properties</a></p>
<p><a href="http://www.grasshopper3d.com/group/geometrygym/forum/topics/cable-properties">http://www.grasshopper3d.com/group/geometrygym/forum/topics/cable-properties</a></p> Hi,
I'm having trouble findi…tag:www.grasshopper3d.com,2013-06-24:2985220:Comment:8763922013-06-24T08:00:19.072ZMarcohttps://www.grasshopper3d.com/profile/Marco612
<p><span>Hi,</span></p>
<p></p>
<p><span>I'm having trouble finding the Grasshopper operator which allows me to define cable section properties for GSA (not normal section properties) It's probably there, but I can't find it... Could someone show me which operator i need for this? </span></p>
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<p><span>Thanks!</span></p>
<p><span>Hi,</span></p>
<p></p>
<p><span>I'm having trouble finding the Grasshopper operator which allows me to define cable section properties for GSA (not normal section properties) It's probably there, but I can't find it... Could someone show me which operator i need for this? </span></p>
<p></p>
<p><span>Thanks!</span></p>