{"id":14567,"date":"2017-07-26T13:55:46","date_gmt":"2017-07-26T12:55:46","guid":{"rendered":"https:\/\/pre.cetestgroup.com\/?page_id=14567"},"modified":"2018-01-31T15:22:39","modified_gmt":"2018-01-31T15:22:39","slug":"modal-analysis","status":"publish","type":"page","link":"https:\/\/cetestgroup.com\/us\/aero-and-other-tests\/modal-analysis\/","title":{"rendered":"Modal analysis"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column]<div class=\"ult-spacer spacer-6a96c542c1b5b\" data-id=\"6a96c542c1b5b\" data-height=\"30\" data-height-mobile=\"20\" data-height-tab=\"20\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div><div id=\"dfd-carousel-6a96c542c1bdb\" class=\"dfd-carousel-wrapper\"><div class=\"dfd-carousel-module-wrapper  dfd-carousel-horizontal dfd-arrows_aside2 dfdfillsquare dfd-arrows-style_4 dfd-arrows-enabled dfd-dots-enabled\" ><div class=\"dfd-carousel\">[vc_single_image image=&#8221;16175&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221;][vc_single_image image=&#8221;16174&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221;]<\/div><a href=\"#\" class=\"dfd-slider-control prev\" title=\"Previous slide\"><i class=\"dfd-added-font-icon-left-open2\"><\/i><\/a><a href=\"#\" class=\"dfd-slider-control next\" title=\"Next slide\"><i class=\"dfd-added-font-icon-right-open2\"><\/i><\/a><\/div>\t\t\t\t<script type=\"text\/javascript\">\r\n\t\t\t\t\t(function($) {\r\n\t\t\t\t\t\t\"use strict\";\r\n\t\t\t\t\t\tvar $carousel = $('#dfd-carousel-6a96c542c1bdb').find('.dfd-carousel');\r\n\t\t\t\t\t\t$(document).ready(function() {\r\n\t\t\t\t\t\t\tvar $initialized = ($('body').hasClass('page-template-tmp-side-by-side')) ? $carousel.not('.slick-initialized') : $carousel;\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t$carousel.siblings('.dfd-slider-control.prev').click(function(e) {\r\n\t\t\t\t\t\t\t\te.preventDefault();\r\n\t\t\t\t\t\t\t\t$carousel.eq(0).slick('slickPrev');\r\n\t\t\t\t\t\t\t});\r\n\t\t\t\t\t\t\t$carousel.siblings('.dfd-slider-control.next').click(function(e) {\r\n\t\t\t\t\t\t\t\te.preventDefault();\r\n\t\t\t\t\t\t\t\t$carousel.eq(0).slick('slickNext');\r\n\t\t\t\t\t\t\t});\r\n\t\t\t\t\t\t\t$initialized.slick({arrows: false,dotsClass: 'dfd-slick-dots',slidesToScroll: 1,autoplay: true,autoplaySpeed: 5000,dots: true,customPaging: function(slider, i) {\r\n\t\t\t\t\t\t\t\t\treturn '<span data-role=\"none\" role=\"button\" aria-required=\"false\" tabindex=\"0\"><\/span>';\r\n\t\t\t\t\t\t\t\t},infinite: true,slidesToShow: 1,speed: 300,swipe: true,draggable: true,adaptiveHeight: true,responsive: [\r\n\t\t\t\t\t\t\t{\r\n\t\t\t\t\t\t\t\tbreakpoint: 1024,\r\n\t\t\t\t\t\t\t\tsettings: {\r\n\t\t\t\t\t\t\t\t\tslidesToShow: 1,\r\n\t\t\t\t\t\t\t\t\tslidesToScroll: 1,\r\n\t\t\t\t\t\t\t\t}\r\n\t\t\t\t\t\t\t},\r\n\t\t\t\t\t\t\t{\r\n\t\t\t\t\t\t\t\tbreakpoint: 800,\r\n\t\t\t\t\t\t\t\tsettings: {\r\n\t\t\t\t\t\t\t\t\tslidesToShow: 1,\r\n\t\t\t\t\t\t\t\t\tslidesToScroll: 1,\r\n\t\t\t\t\t\t\t\t}\r\n\t\t\t\t\t\t\t},\r\n\t\t\t\t\t\t\t{\r\n\t\t\t\t\t\t\t\tbreakpoint: 480,\r\n\t\t\t\t\t\t\t\tsettings: {\r\n\t\t\t\t\t\t\t\t\tslidesToShow: 1,\r\n\t\t\t\t\t\t\t\t\tslidesToScroll: 1,\r\n\t\t\t\t\t\t\t\t}\r\n\t\t\t\t\t\t\t},]});\r\n\t\t\t\t\t\t\t$(\"head\").append(\"<style>#dfd-carousel-6a96c542c1bdb > .dfd-carousel-module-wrapper > .dfd-carousel > .slick-list > .slick-track > .dfd-item-wrap > .cover {padding: 10px;}#dfd-carousel-6a96c542c1bdb {margin: -10px;}<\/style>\")\t\t\t\t\t\t});\r\n\t\t\t\t\t})(jQuery);\r\n\t\t\t\t<\/script>\r\n            <\/div><div class=\"ult-spacer spacer-6a96c542c1c38\" data-id=\"6a96c542c1c38\" data-height=\"30\" data-height-mobile=\"20\" data-height-tab=\"20\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div>[\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]In CETEST we have a broad experience in modal analysis. We perform different types of modal analysis:[\/vc_column_text]<div class=\"ult-spacer spacer-6a96c542c1c44\" data-id=\"6a96c542c1c44\" data-height=\"30\" data-height-mobile=\"20\" data-height-tab=\"30\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div>[vc_row_inner][vc_column_inner width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;16178&#8243; img_size=&#8221;full&#8221;]<div class=\"ult-spacer spacer-6a96c542c1c4c\" data-id=\"6a96c542c1c4c\" data-height=\"20\" data-height-mobile=\"20\" data-height-tab=\"20\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div><div class=\"dfd-heading-shortcode\"><div class=\"dfd-heading-module-wrap center text-center style_01 dfd-heading-6a96c542c1d3d dfd-disable-resposive-headings\" id=\"dfd-heading-6a96c542c1d3d\" ><div class=\"inline-block\"><div class=\"dfd-heading-module\"><h6 class=\"widget-title dfd-title \" style=\"font-family:PT Sans; font-weight:400; font-style:normal; font-size: 20px; color: #25bdd5 !important; \">Experimental Modal Analysis (EMA)<\/h6><\/div><\/div><\/div><script type=\"text\/javascript\">\r\n\t\t\t\t\t\t\t\t\t(function($) {\r\n\t\t\t\t\t\t\t\t\t\t$(\"head\").append(\"<style>.dfd-heading-6a96c542c1d3d.dfd-heading-module-wrap .dfd-heading-module .dfd-heading-delimiter {margin-top:10px;margin-bottom:10px;}<\/style>\");\r\n\t\t\t\t\t\t\t\t\t})(jQuery);\r\n\t\t\t\t\t\t\t\t<\/script><\/div><div class=\"ult-spacer spacer-6a96c542c1e00\" data-id=\"6a96c542c1e00\" data-height=\"10\" data-height-mobile=\"10\" data-height-tab=\"10\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div>[vc_column_text]In this type of analysis, a known excitation is applied to the studied component by means of an instrumented hammer, shakers or the relaxation of a known mass. This analysis is more appropriate for elements of reduced dimensions or with a low damping ratio. In CETEST, we have multiple shorts of excitations elements for application of the most appropriate excitation to the tested component.[\/vc_column_text]<div class=\"ult-spacer spacer-6a96c542c1e0b\" data-id=\"6a96c542c1e0b\" data-height=\"30\" data-height-mobile=\"20\" data-height-tab=\"30\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div>[\/vc_column_inner][vc_column_inner width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;16179&#8243; img_size=&#8221;full&#8221;]<div class=\"ult-spacer spacer-6a96c542c1e13\" data-id=\"6a96c542c1e13\" data-height=\"20\" data-height-mobile=\"20\" data-height-tab=\"20\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div><div class=\"dfd-heading-shortcode\"><div class=\"dfd-heading-module-wrap center text-center style_01 dfd-heading-6a96c542c1e58 dfd-disable-resposive-headings\" id=\"dfd-heading-6a96c542c1e58\" ><div class=\"inline-block\"><div class=\"dfd-heading-module\"><h6 class=\"widget-title dfd-title \" style=\"font-family:PT Sans; font-weight:400; font-style:normal; font-size: 20px; color: #25bdd5 !important; \">Operational Modal Analysis (OMA)<\/h6><\/div><\/div><\/div><script type=\"text\/javascript\">\r\n\t\t\t\t\t\t\t\t\t(function($) {\r\n\t\t\t\t\t\t\t\t\t\t$(\"head\").append(\"<style>.dfd-heading-6a96c542c1e58.dfd-heading-module-wrap .dfd-heading-module .dfd-heading-delimiter {margin-top:10px;margin-bottom:10px;}<\/style>\");\r\n\t\t\t\t\t\t\t\t\t})(jQuery);\r\n\t\t\t\t\t\t\t\t<\/script><\/div><div class=\"ult-spacer spacer-6a96c542c1e9a\" data-id=\"6a96c542c1e9a\" data-height=\"10\" data-height-mobile=\"10\" data-height-tab=\"10\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div>[vc_column_text]The system is studied in normal operation conditions and it is assumed that the excitation received can be modeled as a white noise. This analysis is recommended for elements of big dimensions in which the ambient excitation is constant in the frequency range of study. This analysis permit the \u00a0study of elements which are impossible to study with conventional methods, such as wind power towers, bridges, etc.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row][vc_column]<div class=\"ult-spacer spacer-6a96c542c1ea3\" data-id=\"6a96c542c1ea3\" data-height=\"60\" data-height-mobile=\"20\" data-height-tab=\"30\" data-height-tab-portrait=\"\" data-height-mobile-landscape=\"\" style=\"clear:both;display:block;\"><\/div>[\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]In CETEST we have a broad experience in modal analysis. We perform different types of modal analysis:[\/vc_column_text][vc_row_inner][vc_column_inner width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;16178&#8243; img_size=&#8221;full&#8221;][vc_column_text]In this type of analysis, a known excitation is applied to<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":13841,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"tmp-page-right-sidebar.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-14567","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Modal analysis in Aero, Wind Energy and other sectors - CETEST USA<\/title>\n<meta name=\"description\" content=\"At CETEST we have a broad experience in different types of modal analysis: Experimental Modal Analysis (EMA) for elements of reduced dimensions or with a low damping ratio. 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