{"id":1023,"date":"2024-05-09T20:59:00","date_gmt":"2024-05-09T20:59:00","guid":{"rendered":"https:\/\/virapco.com\/articles-and-new-technologies\/"},"modified":"2024-06-24T16:56:40","modified_gmt":"2024-06-24T16:56:40","slug":"articles-and-new-technologies","status":"publish","type":"page","link":"https:\/\/virapco.com\/en\/articles-and-new-technologies\/","title":{"rendered":"Articles and new technologies"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kktsz994-676c461e0235b148a73967a219041de3\">\n#top .av-special-heading.av-kktsz994-676c461e0235b148a73967a219041de3{\npadding-bottom:0;\n}\nbody .av-special-heading.av-kktsz994-676c461e0235b148a73967a219041de3 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-kktsz994-676c461e0235b148a73967a219041de3 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-kktsz994-676c461e0235b148a73967a219041de3 av-special-heading-h2 blockquote modern-quote modern-centered  avia-builder-el-0  el_before_av_hr  avia-builder-el-first '><h2 class='av-special-heading-tag'  itemprop=\"headline\"  >Articles and new technologies<\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-iyf85-acf56f17f34212da103e70e162e28dff\">\n#top .hr.av-iyf85-acf56f17f34212da103e70e162e28dff{\nmargin-top:5px;\nmargin-bottom:35px;\n}\n.hr.av-iyf85-acf56f17f34212da103e70e162e28dff .hr-inner{\nwidth:50px;\nborder-color:#efbb20;\n}\n<\/style>\n<div  class='hr av-iyf85-acf56f17f34212da103e70e162e28dff hr-custom  avia-builder-el-1  el_after_av_heading  el_before_av_iconlist  hr-center hr-icon-no'><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div  class='avia-icon-list-container av-lvzqx016-a1f429a78b54b24fda94a4497ebd277f  avia-builder-el-2  el_after_av_hr  avia-builder-el-last '><ul class='avia-icon-list avia_animate_when_almost_visible avia-icon-list-left av-iconlist-big av-lvzqx016-a1f429a78b54b24fda94a4497ebd277f avia-iconlist-animate'>\n<li><div class='iconlist_icon av-lvzqwf1t-606fecda16e5be7448a3f87ceb75ad2d avia-font-entypo-fontello'><span class='iconlist-char' aria-hidden='true' data-av_icon='\ue856' data-av_iconfont='entypo-fontello'><\/span><\/div><article class=\"article-icon-entry \"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class=\"iconlist_content_wrap\"><header class=\"entry-content-header\"><h4 class='av_iconlist_title iconlist_title  '  itemprop=\"headline\" ><a href='https:\/\/virapco.com\/wp-content\/uploads\/2024\/05\/19d982f8423d71dfa9db97c34a0f517c9a02-1.pdf' title='Reducing Seconondary Noise on Nanjing Mettro, China ' target=\"_blank\" rel=\"noopener noreferrer\">Reducing Seconondary Noise on Nanjing Mettro, China <\/a><\/h4><\/header><div class='iconlist_content '  itemprop=\"text\" ><p style=\"text-align: left;\"><strong>ASTRACT<\/strong><\/p>\n<p style=\"text-align: left;\">Pandrol Ltd. has been supplying iitts s low stiffness VANGUARD rail fastener to metro operatorss throughout China since 2004. The Pandrol VANGUARD ssyystem uses the principle of rubber in shear to support the rrunning rail by the web and the underside of the railheadd,, which allows the fastener to develop very low vertical ssuupport stiffness. This is demonstrated by the reduction of ssecondary (or re-radiated) noise inside buildings adjacent too metro tunnels. In 2009 Nanjing Metro made a trial fittingg of Pandrol VANGUARD on Line 1. It was retrofitted in ppllace of the existing slab track fasteners thus the performa annce differences between the two could be measured in ter rmms of the insertion loss. The China Ship Scientific Researrcch Centre was commissioned by Nanjing Metro to make reellevant measurements of noise and vibration. This paper d dees scribes the results in terms of vibration measured inside thhee tunnel, the ground vi-bration above the tunnel and noisee inside a building above the trial site.<\/p>\n<\/div><\/div><footer class=\"entry-footer\"><\/footer><\/article><div class=\"iconlist-timeline\"><\/div><\/li>\n<li><div class='iconlist_icon av-lvzr6pki-381909663fe0001e02f3ed9e68386444 avia-font-entypo-fontello'><span class='iconlist-char' aria-hidden='true' data-av_icon='\ue8c0' data-av_iconfont='entypo-fontello'><\/span><\/div><article class=\"article-icon-entry \"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class=\"iconlist_content_wrap\"><header class=\"entry-content-header\"><h4 class='av_iconlist_title iconlist_title  '  itemprop=\"headline\" ><a href='https:\/\/virapco.com\/wp-content\/uploads\/2024\/05\/Amesterdam_Metro.pdf' title='SAFE AND SECURE PUBLIC TRANSPORT' target=\"_blank\" rel=\"noopener noreferrer\">SAFE AND SECURE PUBLIC TRANSPORT<\/a><\/h4><\/header><div class='iconlist_content '  itemprop=\"text\" ><p style=\"text-align: left;\"><strong>:Social safety<\/strong><br \/>\nCase Amsterdam metro system.<\/p>\n<\/div><\/div><footer class=\"entry-footer\"><\/footer><\/article><div class=\"iconlist-timeline\"><\/div><\/li>\n<li><div class='iconlist_icon av-lvzr8kad-aac1ef49ad867a86edcc85ba63e05e14 avia-font-entypo-fontello'><span class='iconlist-char' aria-hidden='true' data-av_icon='\ue809' data-av_iconfont='entypo-fontello'><\/span><\/div><article class=\"article-icon-entry \"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class=\"iconlist_content_wrap\"><header class=\"entry-content-header\"><h4 class='av_iconlist_title iconlist_title  '  itemprop=\"headline\" ><a href='https:\/\/virapco.com\/wp-content\/uploads\/2024\/05\/MSS-after-30-years-in-operation_Zurich.pdf' title='Quality control measurement of a MSS after 30 years  of operation' target=\"_blank\" rel=\"noopener noreferrer\">Quality control measurement of a MSS after 30 years  of operation<\/a><\/h4><\/header><div class='iconlist_content '  itemprop=\"text\" ><p style=\"text-align: left;\"><strong>Introduction<\/strong><\/p>\n<p style=\"text-align: left;\">An investigation into the effectiveness of one of the first mass-spring systems (MSS) in Switzerland is currently ongoing. After 30 years of operation, the vibration-reducing lightweight MSS is still performing without faults, despite the elastic bearing of the slab now being partially submerged in water. Vibration engineering experts Adrian Egger and Markus Heim provide further insight.<\/p>\n<\/div><\/div><footer class=\"entry-footer\"><\/footer><\/article><div class=\"iconlist-timeline\"><\/div><\/li>\n<li><div class='iconlist_icon av-lvzr9zeq-393e87788f7ed2fc7f8e5716ea6f7b48 avia-font-entypo-fontello'><span class='iconlist-char' aria-hidden='true' data-av_icon='\ue800' data-av_iconfont='entypo-fontello'><\/span><\/div><article class=\"article-icon-entry \"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class=\"iconlist_content_wrap\"><header class=\"entry-content-header\"><h4 class='av_iconlist_title iconlist_title  '  itemprop=\"headline\" ><a href='https:\/\/virapco.com\/wp-content\/uploads\/2024\/05\/RFdynamic-testingPaperWEB.pdf' title='THE DYNAMIC TESTING OF ELASTOMERS' target=\"_blank\" rel=\"noopener noreferrer\">THE DYNAMIC TESTING OF ELASTOMERS<\/a><\/h4><\/header><div class='iconlist_content '  itemprop=\"text\" ><p class=\"p1\" style=\"text-align: left;\"><strong>Introduction<\/strong><\/p>\n<p class=\"p1\" style=\"text-align: left;\">Elastomers are finding wider and wider applications throughout industry. For example, the<\/p>\n<p class=\"p1\" style=\"text-align: left;\">automotive industry is continually attempting to improve fuel efficiency. The resulting reduction<\/p>\n<p class=\"p1\" style=\"text-align: left;\">in body and engine weights put increasing pressure on suspension and sound insulation designers<\/p>\n<p class=\"p1\" style=\"text-align: left;\">to meet the car buyers demands for improved ride quality and quiet cars. Designers are no<\/p>\n<p class=\"p1\" style=\"text-align: left;\">longer satisfied with simple static performance data but need data that assists the design of<\/p>\n<p class=\"p1\" style=\"text-align: left;\">complex systems involving elastomeric components.<\/p>\n<p class=\"p1\" style=\"text-align: left;\">A difficulty often encountered lies in the communication problems between the materials<\/p>\n<p class=\"p1\" style=\"text-align: left;\">technologist, the component designer and the test equipment manufacturer. This paper attempts<\/p>\n<p class=\"p1\" style=\"text-align: left;\">to try to clarify some of the confusing terms in dynamic testing and point out some to the<\/p>\n<p class=\"p1\" style=\"text-align: left;\">potential problems, which can be encountered by those unfamiliar with dynamic testing.<\/p>\n<\/div><\/div><footer class=\"entry-footer\"><\/footer><\/article><div class=\"iconlist-timeline\"><\/div><\/li>\n<\/ul><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1023","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/virapco.com\/en\/wp-json\/wp\/v2\/pages\/1023","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/virapco.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/virapco.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/virapco.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/virapco.com\/en\/wp-json\/wp\/v2\/comments?post=1023"}],"version-history":[{"count":3,"href":"https:\/\/virapco.com\/en\/wp-json\/wp\/v2\/pages\/1023\/revisions"}],"predecessor-version":[{"id":1568,"href":"https:\/\/virapco.com\/en\/wp-json\/wp\/v2\/pages\/1023\/revisions\/1568"}],"wp:attachment":[{"href":"https:\/\/virapco.com\/en\/wp-json\/wp\/v2\/media?parent=1023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}