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<?xml-stylesheet type="text/xsl" href="https://communities.bentley.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"><channel><title>Kasiphon Kurojjanawong's Activities</title><link>https://communities.bentley.com/members/a58d1eee_2d00_5e19_2d00_478f_2d00_9dfb_2d00_d8737a0ae956</link><description>Kasiphon Kurojjanawong's recent activity</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>Soil Liquefaction potential</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/158947/soil-liquefaction-potential</link><pubDate>Wed, 01 Aug 2018 10:42:34 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:f7c31157-4c37-4d49-b9f9-2ffd564c9cd0</guid><dc:creator>vasudevan v</dc:creator><description>&lt;p&gt;Hi Guys,&lt;/p&gt;
&lt;p&gt;I&amp;#39;m doing Seismic Analysis of Jacket Structure wiith the presence of&amp;nbsp; Soil Liquefaction Potential. The PSI input file which i&amp;#39;m using is the Soil Resistance curves based on API recommendation. I have created the PSI Input file. But i&amp;#39;m stucked with how to account soil liquefaction due to seismic loadings. Kindly provide me some sample input PSI file with liquefaction accounted.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>SACS unity check weird value ?</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/238724/sacs-unity-check-weird-value</link><pubDate>Fri, 25 Nov 2022 14:28:11 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:4f44e681-fcf1-4d6d-ac88-c8d7d87a8919</guid><dc:creator>Agata Glowacka</dc:creator><description>&lt;p&gt;Hi, I have run my model and I am getting failures of some members. When I checked them, I found out the ratios below. Then I run it again because I thought something is wrong, but I get the same result.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;img src="/resized-image/__size/320x240/__key/communityserver-discussions-components-files/343374/pastedimage1669386307661v1.png" alt=" " /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;I always thought that the unity ratio is the Actual stress divided by Allowable stress, but here somehow those numbers give a result of 100.05. Can someone please explain why?&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;Thank you in advance.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Agata&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>SACS Extreme Wind Analysis - Spectral Response Combination</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/192738/sacs-extreme-wind-analysis---spectral-response-combination</link><pubDate>Thu, 20 Feb 2020 09:00:50 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:4c9c3fa7-a2a6-4a8a-a7ce-e30531bd8057</guid><dc:creator>Kasiphon Kurojjanawong</dc:creator><description>&lt;p&gt;Dear Bentley Staffs,&lt;/p&gt;
&lt;p&gt;I found something strange about the extreme wind analysis executed by SACS.&lt;/p&gt;
&lt;p&gt;Sample 12 provided an example of extreme wind analysis by using spectral approach and automatic combined the wind extreme value with static result.&lt;/p&gt;
&lt;p&gt;The combination process between static and extreme wind response is integrated with STCMB which suppose to be &amp;quot;PRSC &amp;amp;PRST&amp;quot; by default similar to response spectrum analysis.&lt;/p&gt;
&lt;p&gt;However, I did a manual combination by using combine module which is expected to get the same result. Unfortunately, the different results are found.&lt;/p&gt;
&lt;p&gt;The top picture is the output provided by sample 12 for DIRECTION 0 only. This is original process suggested by Bentley.&lt;/p&gt;
&lt;p&gt;The middle picture is the result of manual combine by using &lt;span&gt;&amp;quot;PRSC &amp;amp;PRST&amp;quot;.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;You can see the different in result between the top and the middle picture which is expected to be the same.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Then, I did a test run with manual combination using LIN option.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;It is surprisingly found that the results from LIN option are very similar to Sample 12....which should not be....&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;The results from spectral analysis is positive definite. Then, we should swap the sign convention when they are combined with static result i.e. like&amp;nbsp;&amp;quot;PRSC &amp;amp;PRST&amp;quot; option.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Can Bentley check about the combination option for extreme wind analysis with STCMB option?&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Regards,&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Kasiphon&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/1000x1000/__key/communityserver-discussions-components-files/343374/Combine-Option.png" /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>SACS - Rotational Mass Participation Factor</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/209356/sacs---rotational-mass-participation-factor</link><pubDate>Thu, 04 Feb 2021 08:15:39 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:a3aa3fd4-a024-470d-bdeb-6ceca92fb484</guid><dc:creator>Kasiphon Kurojjanawong</dc:creator><description>&lt;p&gt;Dear Bentley,&lt;/p&gt;
&lt;p&gt;Do we have any ways to get the Mass&amp;nbsp;Participation Factor for Rotational Degree of Freedom?&lt;/p&gt;
&lt;p&gt;The mass participation report shown in Dynlst is only reported for Translational Degree of Freedom only.&lt;/p&gt;
&lt;p&gt;Please help to suggest&lt;/p&gt;
&lt;p&gt;Regards&lt;/p&gt;
&lt;p&gt;Kasiphon&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/1000x240/__key/communityserver-discussions-components-files/343374/8715.Capture.PNG" /&gt;&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Loss of support</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/227506/loss-of-support</link><pubDate>Thu, 24 Mar 2022 12:11:08 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:3eceb717-3a39-45f5-8a61-d35c3bff4005</guid><dc:creator>Sudhakar Emmadi</dc:creator><description>&lt;p&gt;I am analyzing a Topside Module, For few environmental conditions&amp;nbsp; the&amp;nbsp; structure losses contact&amp;nbsp; with support. If the structure deflects by 20mm at support location again it will have contact with the Support.&lt;/p&gt;
&lt;p&gt;May I know how this scenario can be simulated in Sacs.&lt;/p&gt;
&lt;p&gt;Appreciate your quick response.&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Abnormal Level Earthquake(ALE) Analysis With SACS</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/136118/abnormal-level-earthquake-ale-analysis-with-sacs</link><pubDate>Wed, 10 May 2017 02:46:44 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:3c47f814-d276-4e2f-acfd-a1caa84da677</guid><dc:creator>Pei Shing Ooi</dc:creator><description>&lt;p&gt;Hi,&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Could I know is it possible to perform Abnormal Level Earthquake (ALE) with SACS?&lt;/p&gt;
&lt;p&gt;Is there any example for this analysis in SACS manual or samples?&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;Thanks!&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Response Function</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/220852/response-function</link><pubDate>Sat, 16 Oct 2021 08:36:39 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:07fcffc0-f133-4e96-8050-0d60b510d31a</guid><dc:creator>Kasiphon Kurojjanawong</dc:creator><description>&lt;p&gt;Dear Bentley,&lt;/p&gt;
&lt;p&gt;Can anyone help to tell the different between the &amp;#39;Response Function&amp;#39; and &amp;#39;&lt;span&gt;Response Function - White Noise&lt;/span&gt;&amp;#39; generated by RSFUNC ?&lt;/p&gt;
&lt;p&gt;The peak is almost the same. However, it starts to deviate after 2 Hz upward.&lt;/p&gt;
&lt;p&gt;I understand how to generate the&amp;nbsp;&lt;span&gt;&amp;#39;Response Function - White Noise&amp;#39;.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;span&gt;Nonetheless,&amp;nbsp;&amp;#39;Response Function&amp;#39; is mystery&amp;nbsp;for me. Can someone help to guide me about this?&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;span&gt;Regards,&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Kasiphon&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/1000x2000/__key/communityserver-discussions-components-files/343374/6283.Untitled.png" /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>What is the Jonswap &amp;#39;c&amp;#39; parameters?</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/219314/what-is-the-jonswap-c-parameters</link><pubDate>Fri, 10 Sep 2021 04:57:57 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:f6891e46-7fa7-42fc-aedc-86c971307884</guid><dc:creator>Choi Jeongkil</dc:creator><description>&lt;p&gt;Hi, i need your help. i&amp;#39;m beginner in&amp;nbsp;SACS&lt;/p&gt;
&lt;p&gt;What is the &amp;#39; Jonswap &amp;#39;C&amp;#39; parameter&amp;#39; ?&lt;/p&gt;
&lt;p&gt;Where can i search a explanation of that parameter?&lt;/p&gt;
&lt;p&gt;Could you tell me the name of the design criteria in DNVGL codes and page or chapter name exactly?&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;img src="/resized-image/__size/320x240/__key/communityserver-discussions-components-files/343374/pastedimage1631249980313v2.png" alt=" " /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Is there a setting so SACS does not delete blank loadcns when saving in precede?</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/184985/is-there-a-setting-so-sacs-does-not-delete-blank-loadcns-when-saving-in-precede</link><pubDate>Tue, 03 Sep 2019 18:27:23 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:43dba6fb-8525-4d51-b809-ca85112cca50</guid><dc:creator>Jacob Loupe</dc:creator><description>&lt;p&gt;Is there a setting so SACS does not delete blank loadcns when saving in precede? In the past this didn&amp;#39;t happen and a lot of old models have blank loadcns in them. It also used to be common practice to set up a set of loadcns on new projects and fill them in with loads as you get info.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Know-it-all I</title><link>https://communities.bentley.com/achievements/535ca2a0-e289-4068-9f64-e733f28e96fe</link><pubDate>Wed, 21 Jul 2021 09:10:47 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:122bf853-a804-451b-9cec-c897e7b560d9</guid><dc:creator /><description>Answer 15 questions that are verified as helpful or correct.</description></item><item><title>TRANSFER FUNCTION PLOTS NOT MATCHING LISTING</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/216940/transfer-function-plots-not-matching-listing</link><pubDate>Tue, 20 Jul 2021 16:01:29 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:5e13238c-3306-4697-80c8-9c9f799c9a10</guid><dc:creator>robert pluim</dc:creator><description>&lt;p&gt;Dear all, When running the transfer function plots option with seastate I get a chart showing the points base shear/wave height. When checking&amp;nbsp;I noted:&lt;/p&gt;
&lt;p&gt;seancf file base shear/wave height for a period X=16 sec reads Y=1268.489 KN/M I.E.&amp;nbsp;implying H x 1268.489 = 17.131x1268.489 = 21730 kN base shear.&lt;/p&gt;
&lt;p&gt;when reading the listing file for this case:&lt;/p&gt;
&lt;p&gt;Max base shear equals 10997 kN wave height 17.131 m &amp;gt;&amp;gt; 10997/17.131 = 640 i.e. &amp;gt;&amp;gt; does not match 1268 the plot.&lt;/p&gt;
&lt;p&gt;So my query is, how can I calculate back the plotted transfer function dots in my SACS listing&amp;nbsp;file to my opinion I should be able to retrieve the same numbers.&lt;/p&gt;
&lt;p&gt;Thanks alot. kind regards, Robert&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>SACS - Additional Model Information in the 2nd input file</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/209363/sacs---additional-model-information-in-the-2nd-input-file</link><pubDate>Thu, 04 Feb 2021 09:35:17 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:99411b8a-c40a-498b-a8d1-84e3769f3755</guid><dc:creator>Kasiphon Kurojjanawong</dc:creator><description>&lt;p&gt;Dear Bentley,&lt;/p&gt;
&lt;p&gt;I have question about the model information i.e member group, member section etc.&lt;/p&gt;
&lt;p&gt;Can we separate those information i.e. not contain the same sacs inputfile similar to seainp?&lt;/p&gt;
&lt;p&gt;For Seastate information, we can provide additional seastate information in the seainp and put File B to merge both information provided in the sacinp and seainp.&lt;/p&gt;
&lt;p&gt;Can we do the same for model information &lt;span&gt;i.e member group, member section&lt;/span&gt;?&lt;/p&gt;
&lt;p&gt;Fex,&lt;/p&gt;
&lt;p&gt;In the picture, the left hand side is the main model i.e. sacinp contains most of the model information.&amp;nbsp; The right hand side is the additional model information which we need to incorporate in the model before start to execute the analysis.&lt;/p&gt;
&lt;p&gt;I noticed that seainp file has option to add GRUP and MEMBER command, however, it will not be added to the main model input file. It will override all information in the main input file which is not my intention.&lt;/p&gt;
&lt;p&gt;I would like all information are merged before start to analyze the problem.&lt;/p&gt;
&lt;p&gt;Can you help to suggest about this?&lt;/p&gt;
&lt;p&gt;Regards,&lt;/p&gt;
&lt;p&gt;Kasiphon&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/1000x1000/__key/communityserver-discussions-components-files/343374/3175.Untitled.png" /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Dynamic Response Neutral Chart</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/209043/dynamic-response-neutral-chart</link><pubDate>Thu, 28 Jan 2021 07:59:09 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:8a2e50e1-2c64-4336-894d-aa9118db2565</guid><dc:creator>Antooo</dc:creator><description>&lt;p&gt;Hi everybody,&lt;/p&gt;
&lt;p&gt;When I run a dynamic response using earthquake spectral, I get two chart/figure of my input spectral acceleration (see figures below).&lt;/p&gt;
&lt;p&gt;The neutral picture (left figure) give a correct input acceleration, and this is the data used in analysis when I check the listing output.&lt;/p&gt;
&lt;p&gt;When looking at the neutral chart, the shape of the curve remains the same as neutral picture. However, the data is somehow different with negative periods and negative accelerations.&lt;/p&gt;
&lt;p&gt;Can someone explain why there is this different ? Is this a bug of my SACS version ? I use SACS 12.0.&lt;/p&gt;
&lt;p&gt;Thank you in advance,&lt;/p&gt;
&lt;p&gt;Anthony&lt;/p&gt;
&lt;p&gt;&lt;img src="/resized-image/__size/287x196/__key/communityserver-discussions-components-files/343374/pastedimage1611820343085v3.png" alt=" " /&gt;&lt;img src="/resized-image/__size/320x240/__key/communityserver-discussions-components-files/343374/pastedimage1611820128858v1.png" alt=" " /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Wind Spectral Analysis - Aerodynamic Admittance</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/202380/wind-spectral-analysis---aerodynamic-admittance</link><pubDate>Thu, 27 Aug 2020 09:58:02 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:dba0996a-4c0e-42f7-bcc5-d029d1490098</guid><dc:creator>Kasiphon Kurojjanawong</dc:creator><description>&lt;p&gt;Dear Bentley Staffs,&lt;/p&gt;
&lt;p&gt;I am curious about the wind spectral analysis concept using in SACS.&lt;/p&gt;
&lt;p&gt;In general, we should have Aerodynamic Admittance which is taken into account effect of gust disturbance due to the size of structure.&lt;/p&gt;
&lt;p&gt;However, I did not see anything mentioned about&amp;nbsp;&amp;nbsp;&lt;span&gt;Aerodynamic Admittance in the Dynamic Response Manual.&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Moreover, for the actual procedure to perform Wind Spectral analysis by SACS, we are never asked by SACS to provide this effect.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;My question is &amp;quot;Does SACS take into account effect of&amp;nbsp;Aerodynamic Admittance?&amp;quot; If yes, where is it? if no, why?&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Regards,&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Kasiphon&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/1000x500/__key/communityserver-discussions-components-files/343374/flow_2D00_chart_2D00_of_2D00_along_2D00_wind_2D00_spectral_2D00_analysis.png" /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Spectral Wind Fatigue Analysis using SACS Dynamic Response</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/205324/spectral-wind-fatigue-analysis-using-sacs-dynamic-response</link><pubDate>Sun, 01 Nov 2020 13:50:20 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:df9eb3a1-849e-4d4a-a09b-dada25799640</guid><dc:creator>Swee Yong</dc:creator><description>&lt;p&gt;&lt;span&gt;Hi,&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;I would like to know does&amp;nbsp;&lt;/span&gt;&lt;span&gt;Spectral Wind Fatigue Analysis in SACS include vortex shedding damage?&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Thanks,&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Swee&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>