{"id":396334,"date":"2024-12-04T22:31:27","date_gmt":"2024-12-04T22:31:27","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/declaring-initial-velocity-in-spring-mass-system-using-transient-structural\/"},"modified":"2024-12-04T22:31:27","modified_gmt":"2024-12-04T22:31:27","slug":"declaring-initial-velocity-in-spring-mass-system-using-transient-structural","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/declaring-initial-velocity-in-spring-mass-system-using-transient-structural\/","title":{"rendered":"Declaring initial velocity in spring-mass system using Transient Structural"},"content":{"rendered":"<p>&lt;p&gt;Hi, I successfully built a model of a multi-degree-of-freedom spring-mass system using ANSYS Modal. &nbsp;I then successfully dropped this into Transient Structural, since my system was completely linear. &nbsp;I apologize, but I need help in declaring the initial velocity of one of the masses (like -1 m\/s in the Vertical Direction)&#8230;the other masses would have a zero initial velocity. &nbsp;There are no other initial conditions (no initial displacements). &nbsp;Could someone please help me by describing how to declare an initial velocity (linear velocity not rotational velocity) for one body of a multi-body system? &nbsp;Thank you so very much, Daniel Winarski&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-396334","topic","type-topic","status-publish","hentry","topic-tag-initial-conditions","topic-tag-transient-structural","topic-tag-workbench"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi, I successfully built a model of a multi-degree-of-freedom spring-mass system using ANSYS Modal. 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I then successfully dropped this into Transient Structural, since my system was completely linear. I apologize, but I need help in declaring the initial velocity of one of the masses (like -1 m\/s in the Vertical Direction)...the other masses would have\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/declaring-initial-velocity-in-spring-mass-system-using-transient-structural\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/workbench\\\/#listItem\",\"name\":\"workbench\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/workbench\\\/#listItem\",\"position\":3,\"name\":\"workbench\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/workbench\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/declaring-initial-velocity-in-spring-mass-system-using-transient-structural\\\/#listItem\",\"name\":\"Declaring initial velocity in spring-mass system using Transient Structural\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/declaring-initial-velocity-in-spring-mass-system-using-transient-structural\\\/#listItem\",\"position\":4,\"name\":\"Declaring initial velocity in spring-mass system using Transient Structural\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/workbench\\\/#listItem\",\"name\":\"workbench\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/declaring-initial-velocity-in-spring-mass-system-using-transient-structural\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/declaring-initial-velocity-in-spring-mass-system-using-transient-structural\\\/\",\"name\":\"Declaring initial velocity in spring-mass system using Transient Structural | Ansys Learning Forum\",\"description\":\"Hi, I successfully built a model of a multi-degree-of-freedom spring-mass system using ANSYS Modal. 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