{"id":1122,"date":"2015-06-17T16:44:12","date_gmt":"2015-06-17T14:44:12","guid":{"rendered":"http:\/\/www.sva-potsdam.de\/slammingversuchsanlage-2\/"},"modified":"2016-07-26T14:49:28","modified_gmt":"2016-07-26T12:49:28","slug":"slamming-test-stand","status":"publish","type":"post","link":"https:\/\/www.sva-potsdam.de\/en\/slamming-test-stand\/","title":{"rendered":"Slamming Test Stand"},"content":{"rendered":"
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\"Slamming_Anlage\"<\/a>\n<\/div>\n
In heavy seas, especially in conjunction with high ship speeds, due to the heave and pitch motions of the ship, the bow can come out of the water. When re-immersing and exceeding a critical relative vertical velocity at the hull surface, enormous pressures and forces can occur which can cause damage to the ship due to these impacts.<\/p>\n

To investigate this problem experimentally, a hydraulic slamming system was developed in the SVA. With this system, pitching, heaving and coupled movements can be introduced with a frequency of up to 2.0 Hz and an amplitude of up to 10 cm on model ships. It can test models with a length of 5.5 m and a moving mass of 500 kg. By measuring pressure variations in the kHz range on up to 30 measurement points, local peak pressures can be identified.<\/p>\n<\/div>\n

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Context Related References \/ Research Projects<\/strong><\/p>\n

[1]\tFr\u00f6hlich, M.: Einsatz eines Schwingungsoszillators auf hydraulischer Basis zur Untersuchung der Slammingbelastung von Schiffen, STG-Sprechtag \u201eSchiffe im Seegang\u201c, Hamburg, Oktober 1998<\/p>\n","protected":false},"excerpt":{"rendered":"

In heavy seas, especially in conjunction with high ship speeds, due to the heave and pitch motions of the ship, the bow can come out of the water. When re-immersing and exceeding a critical relative vertical velocity at the hull surface, enormous pressures and forces can occur which can cause damage to the ship due to these impacts. To investigate this problem experimentally, a hydraulic slamming system was developed in the SVA. With this system, pitching, heaving and coupled movements<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"class_list":["post-1122","post","type-post","status-publish","format-standard","hentry","category-schlepprinne-en"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t

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Technical Specifications<\/h5>\n<\/td>\n<\/tr>\n
Max. Frequency<\/td>\n2 Hz<\/td>\n<\/tr>\n
Max. Amplitude\t<\/td>\n0.1 m<\/td>\n<\/tr>\n
Max. Model Length\t<\/td>\n5.5 m<\/td>\n<\/tr>\n
Max. Mass\t<\/td>\n500 kg<\/td>\n<\/tr>\n
Max. # Measurement Points<\/td>\n30<\/td>\n<\/tr>\n