{"id":2566,"date":"2023-04-27T08:15:24","date_gmt":"2023-04-27T07:15:24","guid":{"rendered":"https:\/\/www.qingdaoyongtai.com\/?p=2566"},"modified":"2023-04-27T08:15:25","modified_gmt":"2023-04-27T07:15:25","slug":"burst-test-of-evergreen-ship-launching-airbags","status":"publish","type":"post","link":"https:\/\/en.qingdaoyongtai.com\/?p=2566","title":{"rendered":"Burst test of evergreen ship launching airbags"},"content":{"rendered":"<p>Airbag Burst testing is used to determine the absolute maximum pressure at which ship launching airbags will \u201cburst\u201d or fail catastrophically. It is the ultimate test method for the Ship Launching airbags\u2019performance and safety.<\/p>\n<p>Airbag burst test is invaluable for airbag design engineers to assist with material selection, wall thickness, or component geometry, structure optimization etc. This test can be used to determine the pressure at which a component or assembly begins to plastically deform and its ultimate tensile strength, then help manufacturers to establish safety design margins.<\/p>\n<p>Identifying the maximum burst pressure is critical to decide the safety factor of ship launching airbags. Marine airbags usually are used in the open site and exposed to personnel, safety is always most concerned for both manufacturers and customers.<\/p>\n<p>Evergreen Maritime conducts hydrostatic burst testing by using water to his marine airbags regularly by production lot or each time main material batch change to monitor the production and quality control. Burst testing is conducted using a plc controlled, monitored, and computer regulated test bench; featuring data acquisition at 50 Hz, calibrated pressure transducer, and protective safety features.<\/p>\n<h4>Benefits of Burst Testing of Ship Launching Airbags<\/h4>\n<ul>\n<li>Identify the maximum burst pressure<\/li>\n<li>Meet quality standards \u2018factor of safety\u2019 standards<\/li>\n<li>Confirm design margin of production part<\/li>\n<li>Determine failure mode (the way in which a part fails)<\/li>\n<li>Find the \u2018weakest link\u2019 in a production or assembly<\/li>\n<\/ul>\n<h4>Burst Testing Report of Ship Launching Airbags with 2.0 m diameter<\/h4>\n<h5>Experiment Info<\/h5>\n<p>Object: Marine airbag ( D 2.0 M x L 10 M, 6-layer),two pieces<br \/>\nLocation: backyard of Evergreen Maritime NO.1 factory<br \/>\nRandom selected airbags from two batches are tested at one time<\/p>\n<h5>Facilities:<\/h5>\n<p>CCTV, Pump WQ10-10-1, Tape ruler, Pressure Gauges<\/p>\n<p><a href=\"\/wp-content\/uploads\/replace\/7c29400cbab54169d4070a3be46bd13e.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2732\" src=\"\/wp-content\/uploads\/replace\/7c29400cbab54169d4070a3be46bd13e.jpeg\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" srcset=\"\/wp-content\/uploads\/replace\/7c29400cbab54169d4070a3be46bd13e.jpeg 800w, http:\/\/eversafemarine.net\/wp-content\/uploads\/2019\/04\/Marine-airbag-burst-test-trench-and-monitor-300x169.jpg 300w, http:\/\/eversafemarine.net\/wp-content\/uploads\/2019\/04\/Marine-airbag-burst-test-trench-and-monitor-768x432.jpg 768w\" alt=\"Burst test of evergreen ship launching airbags\" width=\"800\" height=\"450\" title=\"\"><\/a><\/p>\n<p>Results:<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"137\">Test Pressure<\/td>\n<td width=\"183\">Pressure keeping Time<\/td>\n<td width=\"350\">Result<\/td>\n<\/tr>\n<tr>\n<td width=\"137\">0.1 Mpa<\/td>\n<td width=\"183\">30 minutes<\/td>\n<td width=\"350\">No change of dimension<\/td>\n<\/tr>\n<tr>\n<td width=\"137\">0.2 Mpa<\/td>\n<td width=\"183\">60 minutes<\/td>\n<td width=\"350\">Diameter increases 2%, length increases 2.5 %, no crack occur<\/td>\n<\/tr>\n<tr>\n<td width=\"137\">0.3 Mpa<\/td>\n<td width=\"183\">120 minutes<\/td>\n<td width=\"350\">Diameter increases 4%, length increases 5%, no crack occur<\/td>\n<\/tr>\n<tr>\n<td width=\"137\">0.4 Mpa<\/td>\n<td width=\"183\">24 Hours<\/td>\n<td width=\"350\">Diameter increases 5%, length increases 6%, no crack occur, no bursting<\/td>\n<\/tr>\n<tr>\n<td width=\"137\">0.6 Mpa<\/td>\n<td width=\"183\">1 hour<\/td>\n<td width=\"350\">Diameter increases 7%, length increases 7%, tiny cracks occur, no bursting<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h5><a href=\"\/wp-content\/uploads\/replace\/eede6a2add96b0e335b35891496423a9.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2733\" src=\"\/wp-content\/uploads\/replace\/eede6a2add96b0e335b35891496423a9.jpeg\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" srcset=\"\/wp-content\/uploads\/replace\/eede6a2add96b0e335b35891496423a9.jpeg 800w, http:\/\/eversafemarine.net\/wp-content\/uploads\/2019\/04\/ship-launching-airbags-burst-testing-equipment-300x169.jpg 300w, http:\/\/eversafemarine.net\/wp-content\/uploads\/2019\/04\/ship-launching-airbags-burst-testing-equipment-768x432.jpg 768w\" alt=\"Burst test of evergreen ship launching airbags\" width=\"800\" height=\"450\" title=\"\"><\/a><\/h5>\n<p><a href=\"\/wp-content\/uploads\/replace\/9686f142c3d6ab50bb0e84a54fcf73f6.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2734\" src=\"\/wp-content\/uploads\/replace\/9686f142c3d6ab50bb0e84a54fcf73f6.jpeg\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" srcset=\"\/wp-content\/uploads\/replace\/9686f142c3d6ab50bb0e84a54fcf73f6.jpeg 800w, http:\/\/eversafemarine.net\/wp-content\/uploads\/2019\/04\/Evergreen-airbags-keeps-0.6-mpa-pressure-for-one-hour-300x169.jpg 300w, http:\/\/eversafemarine.net\/wp-content\/uploads\/2019\/04\/Evergreen-airbags-keeps-0.6-mpa-pressure-for-one-hour-768x432.jpg 768w\" alt=\"Burst test of evergreen ship launching airbags\" width=\"800\" height=\"450\" title=\"\"><\/a><\/p>\n<h5>Analysis<\/h5>\n<p>The tested two pieces airbags keep pressure at 0.6 mPa for one hour\u00a0 and did not burst.<\/p>\n<p>The rated working pressure of diameter 2.0 m airbag is 0.1 MPa, So safety factor of marine airbags with 2.0 m diameter and 6 reinforcement layers is at least 6 times.<\/p>\n<p>The ISO standards of ship launching airbags\u00a0ISO 14409\u00a0asks for safety factor is 3 times, Evergreen performs a higher standards for his products.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Airbag Burst testing is used to determine the absolute maximum pressure at which ship launching airbags will \u201cburst\u201d or fail catastrophically. It is the ultimate test method for the Ship Launching airbags\u2019performance and safety.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,105],"tags":[109,108],"class_list":["post-2566","post","type-post","status-publish","format-standard","category-news","category-technical-article","tag-burst","tag-burst-test"],"_links":{"self":[{"href":"https:\/\/en.qingdaoyongtai.com\/index.php?rest_route=\/wp\/v2\/posts\/2566","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/en.qingdaoyongtai.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/en.qingdaoyongtai.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/en.qingdaoyongtai.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/en.qingdaoyongtai.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2566"}],"version-history":[{"count":3,"href":"https:\/\/en.qingdaoyongtai.com\/index.php?rest_route=\/wp\/v2\/posts\/2566\/revisions"}],"predecessor-version":[{"id":2572,"href":"https:\/\/en.qingdaoyongtai.com\/index.php?rest_route=\/wp\/v2\/posts\/2566\/revisions\/2572"}],"wp:attachment":[{"href":"https:\/\/en.qingdaoyongtai.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2566"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/en.qingdaoyongtai.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2566"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/en.qingdaoyongtai.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2566"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}