{"id":221750,"date":"2014-10-27T19:00:00","date_gmt":"2014-10-27T23:00:00","guid":{"rendered":"c7d2bf56431c6a52c4114dcdf3fbce40"},"modified":"2014-10-27T19:00:00","modified_gmt":"2014-10-27T23:00:00","slug":"hydra-shaker","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=221750","title":{"rendered":"Hydra shaker"},"content":{"rendered":"<p>\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/videos\/2014\/10\/hydra_shaker\/15002616-2-eng-GB\/Hydra_shaker_small.png\" width=\"170\" height=\"96\" align=\"left\" hspace=\"8\" \/><\/p>\n<p>The ESTEC Test Centre\u2019s Hydra \u2013 short for Hydraulic Multi-axis Shaker \u2013 is the most powerful and most precisely-controllable of several such shaker tables at the site.&nbsp;<br \/>\nHydra serves to simulate the extreme vibration experienced during the first few minutes of a rocket launch, to ensure that satellites and their component parts will not be shaken to pieces during their actual flight to orbit.&nbsp;<br \/>\nThe facility can shake test items weighing up to 23 tonnes, generating accelerations of 0.02 \u2013 5 Earth gravity. Overall, Hydra is capable of generating vibrations equivalent to upwards of a Magnitude 7 earthquake.&nbsp;<br \/>Installed in 1996 and refurbished in 2011, Hydra has served many of Europe\u2019s largest space missions, including Envisat \u2013 at eight tonnes the largest ever civilian Earth observation satellite \u2013 Herschel and the ATV, which weighed 22 tonnes with its propellant tanks full.\u2019<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/videos\/2014\/10\/hydra_shaker\/15002616-2-eng-GB\/Hydra_shaker_small.png\" width=\"170\" height=\"96\" align=\"left\" hspace=\"8\" \/><\/p>\n<p>The ESTEC Test Centre\u2019s Hydra \u2013 short for Hydraulic Multi-axis Shaker \u2013 is the most powerful and most precisely-controllable of several such shaker tables at the site.&nbsp;<br \/>\nHydra serves to simulate the extreme vibration experienced during the first few minutes of a rocket launch, to ensure that satellites and their component parts will not be shaken to pieces during their actual flight to orbit.&nbsp;<br \/>\nThe facility can shake test items weighing up to 23 tonnes, generating accelerations of 0.02 \u2013 5 Earth gravity. Overall, Hydra is capable of generating vibrations equivalent to upwards of a Magnitude 7 earthquake.&nbsp;<br \/>Installed in 1996 and refurbished in 2011, Hydra has served many of Europe\u2019s largest space missions, including Envisat \u2013 at eight tonnes the largest ever civilian Earth observation satellite \u2013 Herschel and the ATV, which weighed 22 tonnes with its propellant tanks full.\u2019<\/p>\n","protected":false},"author":5,"featured_media":615444,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-221750","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-multimedia"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/221750","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=221750"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/221750\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=221750"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=221750"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=221750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}