{"id":370567,"date":"2024-07-04T19:10:06","date_gmt":"2024-07-04T19:10:06","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/springs-in-modal-analysis\/"},"modified":"2024-07-04T19:10:06","modified_gmt":"2024-07-04T19:10:06","slug":"springs-in-modal-analysis","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/springs-in-modal-analysis\/","title":{"rendered":"Springs in modal analysis."},"content":{"rendered":"<p>Hi all.<br \/>I calculated the vibration isolators for the frame of the pumping unit.<br \/>I used modal + harmonic analysis.<br \/>1. I used modal + harmonic analysis with hard termination.<br \/>2. I used modal + harmonic analysis with springs that simulate vibration isolators.<br \/>I used the combin14 snippet and set the stiffness in three XYZ planes:<br \/>ET,_sid,14<br \/>KEYOPT,_sid,1,1<br \/>R,_sid,196,637,1122<br \/>REAL,_sid<\/p>\n<p>Everything went well. I just have one question. In modal analysis with springs, the first two modes show 0; with rigid embedding, this does not happen. This is fine? The mesh is good everywhere.<\/p>\n","protected":false},"template":"","class_list":["post-370567","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi all.I calculated the vibration isolators for the frame of the pumping unit.I used modal + harmonic analysis.1. I used modal + harmonic analysis with hard termination.2. I used modal + harmonic analysis with springs that simulate vibration isolators.I used the combin14 snippet and set the stiffness in three XYZ planes:ET,_sid,14KEYOPT,_sid,1,1R,_sid,196,637,1122REAL,_sidEverything went well. I just\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/springs-in-modal-analysis\/\" \/>\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\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Springs in modal analysis. | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hi all.I calculated the vibration isolators for the frame of the pumping unit.I used modal + harmonic analysis.1. I used modal + harmonic analysis with hard termination.2. I used modal + harmonic analysis with springs that simulate vibration isolators.I used the combin14 snippet and set the stiffness in three XYZ planes:ET,_sid,14KEYOPT,_sid,1,1R,_sid,196,637,1122REAL,_sidEverything went well. I just\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/springs-in-modal-analysis\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-07-04T19:10:06+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-07-04T19:10:06+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Springs in modal analysis. | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hi all.I calculated the vibration isolators for the frame of the pumping unit.I used modal + harmonic analysis.1. I used modal + harmonic analysis with hard termination.2. I used modal + harmonic analysis with springs that simulate vibration isolators.I used the combin14 snippet and set the stiffness in three XYZ planes:ET,_sid,14KEYOPT,_sid,1,1R,_sid,196,637,1122REAL,_sidEverything went well. I just\" \/>\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\\\/springs-in-modal-analysis\\\/#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\\\/springs-in-modal-analysis\\\/#listItem\",\"name\":\"Springs in modal analysis.\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/springs-in-modal-analysis\\\/#listItem\",\"position\":3,\"name\":\"Springs in modal analysis.\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}}]},{\"@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\\\/springs-in-modal-analysis\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/springs-in-modal-analysis\\\/\",\"name\":\"Springs in modal analysis. | Ansys Learning Forum\",\"description\":\"Hi all.I calculated the vibration isolators for the frame of the pumping unit.I used modal + harmonic analysis.1. I used modal + harmonic analysis with hard termination.2. I used modal + harmonic analysis with springs that simulate vibration isolators.I used the combin14 snippet and set the stiffness in three XYZ planes:ET,_sid,14KEYOPT,_sid,1,1R,_sid,196,637,1122REAL,_sidEverything went well. 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I used modal + harmonic analysis with hard termination.2. I used modal + harmonic analysis with springs that simulate vibration isolators.I used the combin14 snippet and set the stiffness in three XYZ planes:ET,_sid,14KEYOPT,_sid,1,1R,_sid,196,637,1122REAL,_sidEverything went well. 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I just"},"aioseo_meta_data":{"post_id":"370567","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"content","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":true,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2024-10-28 16:38:52","updated":"2024-10-28 16:38:52","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/topics\/\" title=\"Topics\">Topics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tSprings in modal analysis.\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/forum\/topics\/"},{"label":"Springs in modal analysis.","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/springs-in-modal-analysis\/"}],"acf":[],"custom_fields":[{"0":{"_btv_view_count":["1729"],"_bbp_topic_status":["unanswered"],"_bbp_subscription":["240","257647"],"_bbp_notification_enabled":["257647","257647"],"_bbp_topic_id":["370567"],"_bbp_forum_id":["27791"],"_bbp_engagement":["240","257647"],"_bbp_voice_count":["2"],"_bbp_reply_count":["6"],"_bbp_last_reply_id":["374751"],"_bbp_last_active_id":["374751"],"_bbp_last_active_time":["2024-08-01 17:03:54"]},"test":"javat33489gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/370567","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/370567\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=370567"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}