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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>Kathirvelan Velayutham's Activities</title><link>https://communities.bentley.com/members/60049e4b_2d00_3a2c_2d00_44c4_2d00_9c93_2d00_e52fe8e87997</link><description>Kathirvelan Velayutham's recent activity</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>TIME HISTORY FATIGUE ANALYSIS IN SACS</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/143520/time-history-fatigue-analysis-in-sacs</link><pubDate>Thu, 23 Nov 2017 07:22:09 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:1dafe48e-0eec-453a-b2c8-6e0176542d08</guid><dc:creator>vasudevan v</dc:creator><description>&lt;p&gt;Hello All,&lt;/p&gt;
&lt;p&gt;Greetings.&lt;/p&gt;
&lt;p&gt;I have to perform &lt;strong&gt;TIME HISTORY FATIGUE ANALYSIS IN SACS&lt;/strong&gt;, for some project &lt;strong&gt;as per the client requirement&lt;/strong&gt;. I &lt;strong&gt;have experience in doing deterministic and spectral fatigue analysis&lt;/strong&gt;, but time history domain is completely&lt;strong&gt; new to me&lt;/strong&gt;. I have gone through the sacs wave response module and some other papers dealing with time history fatigue and got some insight regarding that but still very vague in how to perform the analysis in sacs (Procedures).&lt;/p&gt;
&lt;p&gt;1) how to decide the &lt;strong&gt;time increment&lt;/strong&gt;?&lt;/p&gt;
&lt;p&gt;2) what is the &lt;strong&gt;number of frequencies to be considered&lt;/strong&gt; &amp;amp; where &lt;strong&gt;it is going as the input in the analysis&lt;/strong&gt;?&lt;/p&gt;
&lt;p&gt;3) what is &lt;strong&gt;seed&lt;/strong&gt; means and &lt;strong&gt;how to decide the number of seeds&lt;/strong&gt;?&lt;/p&gt;
&lt;p&gt;4) what is the &lt;strong&gt;time duration to be considered&lt;/strong&gt;? ( for fixed &lt;strong&gt;offshore well head&amp;nbsp;jacket structures&lt;/strong&gt;)&lt;/p&gt;
&lt;p&gt;5) How &lt;strong&gt;sacs will perform the Rain flow counting process&lt;/strong&gt;?&lt;/p&gt;
&lt;p&gt;6) What is the &lt;strong&gt;Return period&lt;/strong&gt; (like 1-yr or 10-yr or 100-yr)&amp;nbsp;to be &lt;strong&gt;considered for&amp;nbsp;the Significant wave height and Dominant period?&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Kindly provide me a sample time history fatigue sacs file with procedure&amp;nbsp;so that I can complete my task within stipulated time. Also if permits provide me the step by step procedure write up&amp;nbsp;(denoting how the input flows and the corresponding output) and some theoretical backup calculation references.&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Thanks &amp;amp; Regards,&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Vasudevan V&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Structural Engineer - Offshore.&lt;/strong&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>SACs Ring program</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/231267/sacs-ring-program</link><pubDate>Wed, 15 Jun 2022 09:59:58 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:015cd903-7d88-4868-bc80-2d8141b72e17</guid><dc:creator>Kathirvelan Velayutham</dc:creator><description>&lt;p&gt;Dear Bentley,&lt;/p&gt;
&lt;p&gt;I request to update SACS ring utility programme based on latest Roark&amp;#39;s Formulas for Stress and Strain book.&lt;/p&gt;
&lt;p&gt;Further, the following update is desired.&lt;/p&gt;
&lt;p&gt;The unit system &amp;nbsp;of present Roarks program should be updated for MKS &amp;nbsp;system&lt;/p&gt;
&lt;p&gt;The input is not able to be saved. Hence, user should be able to save input, like Basic static analysis is saved in &amp;nbsp;data gen.&lt;/p&gt;
&lt;p&gt;All load cases (as available in Roarks book) should be included as much as possible.&lt;/p&gt;
&lt;p&gt;Von mise stress , direct stress, shear stress, bending stress and combine stress should be reported.&lt;/p&gt;
&lt;p&gt;Results should be available at &amp;nbsp;every 5 deg.&lt;/p&gt;
&lt;p&gt;Bending moment diagram and stress diagram should be able to be printed.&lt;/p&gt;
&lt;p&gt;Thanks&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>OpenStaad</title><link>https://communities.bentley.com/products/ram-staad/f/ram-staad-forum/186990/openstaad</link><pubDate>Tue, 15 Oct 2019 08:12:16 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:ab042d8f-9109-4e40-b6b8-e40f97a3d47d</guid><dc:creator>Kathirvelan Velayutham</dc:creator><description>&lt;p&gt;HI,&lt;/p&gt;
&lt;p&gt;Is there any way to the load combination for the particular member having maximum UC ratio using OpenStaad?&lt;/p&gt;
&lt;p&gt;&amp;quot;Output.GetMemberSteelDesignRatio&amp;quot; function will get maximum UC for the given beam. But how to get the corresponding load combination using Openstaad?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>SACS UC PLOT NOT APPLICABLE</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/179119/sacs-uc-plot-not-applicable</link><pubDate>Mon, 06 May 2019 07:52:08 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:aea14078-913a-4e6f-80cc-e5e429029481</guid><dc:creator>Kathirvelan Velayutham</dc:creator><description>&lt;p&gt;Dear All&lt;/p&gt;
&lt;p&gt;When i open PSVDB to see the member UC ratio, it shows with &amp;quot;N/A&amp;quot;. But I could review the member design.&lt;/p&gt;
&lt;p&gt;It is not displaying the UC ratio. any idea ?&amp;nbsp; how to sort it out?&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/320x240/__key/communityserver-discussions-components-files/343374/uc_5F00_ratio.PNG" /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>SACS plot macro</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/178796/sacs-plot-macro</link><pubDate>Sun, 28 Apr 2019 06:09:56 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:bebf16e5-c152-4074-937a-792c31d7f3d7</guid><dc:creator>Kathirvelan Velayutham</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;Is there any macro/short cut available for generating SACS plots, such as joint no, member group, unity check, etc. at one click ?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>SACS-HYDRO STATIC DESIGN-TENSION SAFETY FACTOR-API</title><link>https://communities.bentley.com/products/offshore/f/maxsurf-moses-sacs-forum/177524/sacs-hydro-static-design-tension-safety-factor-api</link><pubDate>Tue, 02 Apr 2019 07:12:16 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:a93c999f-1635-475c-8637-27ea1756d63e</guid><dc:creator>Kathirvelan Velayutham</dc:creator><description>&lt;p&gt;hi,&amp;nbsp;&lt;/p&gt;
&lt;p&gt;In SACS, HYDRO card has option to change axial compression safety factor to 1.5 for extreme design case.&lt;/p&gt;
&lt;p&gt;However,&amp;nbsp;there is no option to change axial tension safety factor 1.67 to&amp;nbsp; 1.25 fro extreme design case as per API in SACS.&lt;/p&gt;
&lt;p&gt;Please clarify.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Regards&lt;/p&gt;
&lt;p&gt;Kathirvelan&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>Ask A Question I</title><link>https://communities.bentley.com/achievements/460ac7df-7ccc-4c42-a204-9e05eef3be09</link><pubDate>Tue, 02 Apr 2019 01:04:57 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:7c0fa550-9644-4fb4-920f-f352d13eb58f</guid><dc:creator /><description>Ask a question in a forum.</description></item></channel></rss>