{"id":441386,"date":"2025-09-13T13:38:44","date_gmt":"2025-09-13T13:38:44","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/which-equations-and-in-what-form-are-valid-for-defining-excitations\/"},"modified":"2025-09-13T13:38:44","modified_gmt":"2025-09-13T13:38:44","slug":"which-equations-and-in-what-form-are-valid-for-defining-excitations","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/which-equations-and-in-what-form-are-valid-for-defining-excitations\/","title":{"rendered":"Which equations and in what form are valid for defining excitations?"},"content":{"rendered":"<p>&lt;p&gt;Hi,&lt;\/p&gt;&lt;p&gt;Which &lt;strong data-start=&#8221;101&#8243; data-end=&#8221;149&#8243;&gt;equations and in what form are valid for defining excitations?<\/strong>&lt;\/p&gt;&lt;p&gt;&lt;strong data-start=&#8221;101&#8243; data-end=&#8221;149&#8243;&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mord mathnormal&#8221;&gt;I&lt;\/span&gt;&lt;span class=&#8221;mopen&#8221;&gt;(&lt;\/span&gt;&lt;span class=&#8221;mord mathnormal&#8221;&gt;a&lt;\/span&gt;&lt;span class=&#8221;mclose&#8221;&gt;)&lt;\/span&gt;&lt;span class=&#8221;mrel&#8221;&gt;=&lt;\/span&gt;&lt;\/span&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mord&#8221;&gt;&lt;span class=&#8221;mord mathnormal&#8221;&gt;I&lt;\/span&gt;&lt;span class=&#8221;vlist-r&#8221;&gt;&lt;span class=&#8221;mord mathnormal mtight&#8221;&gt;s&lt;\/span&gt;&lt;span class=&#8221;vlist-s&#8221;&gt;\u200b&lt;\/span&gt;&lt;\/span&gt;&lt;\/span&gt;&lt;span class=&#8221;mbin&#8221;&gt;&sdot;&lt;\/span&gt;&lt;\/span&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mop&#8221;&gt;sin&lt;\/span&gt;&lt;span class=&#8221;mopen&#8221;&gt;(&lt;\/span&gt;&lt;span class=&#8221;mord&#8221;&gt;2&lt;\/span&gt;&lt;span class=&#8221;mord mathnormal&#8221;&gt;&pi;&lt;\/span&gt;&lt;span class=&#8221;mord mathnormal&#8221;&gt;f&lt;\/span&gt;&lt;span class=&#8221;mbin&#8221;&gt;&sdot;&lt;\/span&gt;&lt;\/span&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mord mathnormal&#8221;&gt;t&lt;\/span&gt;&lt;span class=&#8221;mbin&#8221;&gt;+&lt;\/span&gt;&lt;\/span&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mord mathnormal&#8221;&gt;&theta;&lt;\/span&gt;&lt;span class=&#8221;mclose&#8221;&gt;)&lt;\/span&gt;&lt;\/span&gt;<\/strong>&lt;\/p&gt;&lt;p&gt;&lt;strong data-start=&#8221;101&#8243; data-end=&#8221;149&#8243;&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mclose&#8221;&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mord mathnormal&#8221;&gt;I&lt;\/span&gt;&lt;span class=&#8221;mopen&#8221;&gt;(&lt;\/span&gt;&lt;span class=&#8221;mord mathnormal&#8221;&gt;b&lt;\/span&gt;)&lt;span class=&#8221;mrel&#8221;&gt;=&lt;\/span&gt;&lt;\/span&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mord&#8221;&gt;&lt;span class=&#8221;mord mathnormal&#8221;&gt;I&lt;\/span&gt;&lt;span class=&#8221;vlist-r&#8221;&gt;&lt;span class=&#8221;mord mathnormal mtight&#8221;&gt;s&lt;\/span&gt;&lt;span class=&#8221;vlist-s&#8221;&gt;\u200b&lt;\/span&gt;&lt;\/span&gt;&lt;\/span&gt;&lt;span class=&#8221;mbin&#8221;&gt;&sdot;&lt;\/span&gt;&lt;\/span&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mop&#8221;&gt;sin&lt;\/span&gt;&lt;span class=&#8221;mopen&#8221;&gt;&#8230;&#8230;&#8230;.&lt;\/span&gt;&lt;\/span&gt;&lt;\/span&gt;&lt;\/span&gt;<\/strong>&lt;\/p&gt;&lt;p&gt;&lt;strong data-start=&#8221;101&#8243; data-end=&#8221;149&#8243;&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mclose&#8221;&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mord mathnormal&#8221;&gt;I&lt;\/span&gt;&lt;span class=&#8221;mopen&#8221;&gt;(&lt;\/span&gt;&lt;span class=&#8221;mord mathnormal&#8221;&gt;c&lt;\/span&gt;)&lt;span class=&#8221;mrel&#8221;&gt;=&lt;\/span&gt;&lt;\/span&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mord&#8221;&gt;&lt;span class=&#8221;mord mathnormal&#8221;&gt;I&lt;\/span&gt;&lt;span class=&#8221;vlist-r&#8221;&gt;&lt;span class=&#8221;mord mathnormal mtight&#8221;&gt;s&lt;\/span&gt;&lt;span class=&#8221;vlist-s&#8221;&gt;\u200b&lt;\/span&gt;&lt;\/span&gt;&lt;\/span&gt;&lt;span class=&#8221;mbin&#8221;&gt;&sdot;&lt;\/span&gt;&lt;\/span&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mop&#8221;&gt;sin&lt;\/span&gt;&lt;span class=&#8221;mopen&#8221;&gt;&#8230;&#8230;&#8230;&#8230;&lt;\/span&gt;&lt;\/span&gt;&lt;\/span&gt;&lt;\/span&gt;&lt;\/span&gt;<\/strong>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;&lt;strong data-start=&#8221;101&#8243; data-end=&#8221;149&#8243;&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mclose&#8221;&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;base&#8221;&gt;&lt;span class=&#8221;mopen&#8221;&gt;Many thanks&lt;\/span&gt;&lt;\/span&gt;&lt;\/span&gt;&lt;\/span&gt;&lt;\/span&gt;<\/strong>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-441386","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi,Which equations and in what form are valid for defining excitations?I(a)=Is\u200b\u22c5sin(2\u03c0f\u22c5t+\u03b8)\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/which-equations-and-in-what-form-are-valid-for-defining-excitations\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" 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