{"id":963,"date":"2010-02-18T22:03:00","date_gmt":"2010-02-18T22:03:00","guid":{"rendered":"http:\/\/jpaerospace.com\/blog\/?p=963"},"modified":"2010-02-18T22:03:00","modified_gmt":"2010-02-18T22:03:00","slug":"air-beams-for-jellyfish","status":"publish","type":"post","link":"https:\/\/jpaerospace.com\/new_wordpress\/?p=963","title":{"rendered":"Air Beams for Jellyfish"},"content":{"rendered":"<p>Our new Jellyfish balloon uses inflated struts.\u00a0 They don&#8217;t have an outer shell so there not true air beams.\u00a0 However, they are beams and full of air. Last night we tested the maximum pressure the unsupported tubes could\u00a0 take. The answer ended up being very complicated.\u00a0 The beam held fine at 1.1 psi then bubbled,\u00a0 stretched and burst as the pressure dropped down to 0.7 psi. We retested varying the pressure between\u00a0 0.5 and 0.7\u00a0 for 30 minutes, (est. first flight duration). It held just fine showing no stain.\u00a0 The beam need to hold 0.4 for the structural needs of the balloon. In flight the pressure will be monitored and controlled and now we know to keep the max pressure at or below 0.7 psi. Even a brief spike at higher pressure creates failures in the plastic matrix. Once that happens the beam is toast even at much lower pressures.<\/p>\n<p><a href=\"https:\/\/jpaerospace.com\/new_wordpress\/wp-content\/uploads\/2010\/02\/jellybeam1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-964\" title=\"jellybeam1\" src=\"https:\/\/jpaerospace.com\/new_wordpress\/wp-content\/uploads\/2010\/02\/jellybeam1-150x150.jpg\" alt=\"jellybeam1\" width=\"150\" height=\"150\" \/><\/a> <a href=\"https:\/\/jpaerospace.com\/new_wordpress\/wp-content\/uploads\/2010\/02\/jellybeam2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-965\" title=\"jellybeam2\" src=\"https:\/\/jpaerospace.com\/new_wordpress\/wp-content\/uploads\/2010\/02\/jellybeam2-150x150.jpg\" alt=\"jellybeam2\" width=\"150\" height=\"150\" \/><\/a><\/p>\n<p><a href=\"https:\/\/jpaerospace.com\/new_wordpress\/wp-content\/uploads\/2010\/02\/jellybeam3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-966\" title=\"jellybeam3\" src=\"https:\/\/jpaerospace.com\/new_wordpress\/wp-content\/uploads\/2010\/02\/jellybeam3-150x150.jpg\" alt=\"jellybeam3\" width=\"150\" height=\"150\" \/><\/a> <a href=\"https:\/\/jpaerospace.com\/new_wordpress\/wp-content\/uploads\/2010\/02\/jellybeam4.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-967\" title=\"jellybeam4\" src=\"https:\/\/jpaerospace.com\/new_wordpress\/wp-content\/uploads\/2010\/02\/jellybeam4-150x150.jpg\" alt=\"jellybeam4\" width=\"150\" height=\"150\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Our new Jellyfish balloon uses inflated struts.\u00a0 They don&#8217;t have an outer shell so there not true air beams.\u00a0 However, they are beams and full of air. Last night we tested the maximum pressure the unsupported tubes could\u00a0 take. The answer ended up being very complicated.\u00a0 The beam held fine at 1.1 psi then bubbled,\u00a0 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-963","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/jpaerospace.com\/new_wordpress\/index.php?rest_route=\/wp\/v2\/posts\/963","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jpaerospace.com\/new_wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jpaerospace.com\/new_wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jpaerospace.com\/new_wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/jpaerospace.com\/new_wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=963"}],"version-history":[{"count":0,"href":"https:\/\/jpaerospace.com\/new_wordpress\/index.php?rest_route=\/wp\/v2\/posts\/963\/revisions"}],"wp:attachment":[{"href":"https:\/\/jpaerospace.com\/new_wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=963"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jpaerospace.com\/new_wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=963"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jpaerospace.com\/new_wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}