Pub Date : 2011-04-26DOI: 10.1111/j.1559-3584.2010.00297.x
LOWELL HOOVER, WILLIAM CRESPO, BRYAN MITSDARFFER
The development of a 2–18 GHz instrument for radar and electronic warfare (EW) transmitter test and measurement is reported. The transmitter component analyzer was developed by NSWC Crane to measure critical performance parameters of the AN/SPY-1 radar's components. Typical measurements include clutter attenuation, clutter improvement factor, intrapulse noise, moving target indicator residues, random pulse jitter, systematic pulse jitter, phase noise, and amplitude noise.
{"title":"Automated Noise Measurement System for Radar and EW Transmitter Components","authors":"LOWELL HOOVER, WILLIAM CRESPO, BRYAN MITSDARFFER","doi":"10.1111/j.1559-3584.2010.00297.x","DOIUrl":"https://doi.org/10.1111/j.1559-3584.2010.00297.x","url":null,"abstract":"<p>The development of a 2–18 GHz instrument for radar and electronic warfare (EW) transmitter test and measurement is reported. The transmitter component analyzer was developed by NSWC Crane to measure critical performance parameters of the AN/SPY-1 radar's components. Typical measurements include clutter attenuation, clutter improvement factor, intrapulse noise, moving target indicator residues, random pulse jitter, systematic pulse jitter, phase noise, and amplitude noise.</p>","PeriodicalId":49775,"journal":{"name":"Naval Engineers Journal","volume":"123 1","pages":"39-43"},"PeriodicalIF":0.2,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1559-3584.2010.00297.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72327991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-04-26DOI: 10.1111/j.1559-3584.2010.00299.x
SPIRO J. PAHOS
Cruise ships often transit the littoral zone of developing countries where piracy thrives. The attack against Seaborne Spirit on November 5, 2005 was countered successfully by the ship's crew but the toll could have been a lot heavier that day. Nowadays, although international forces police high-risk waters, the risk map is constantly evolving, and there have been instances where even naval vessels had to change their route in order to avoid perilous areas. In the Seaborne Spirit attack approximately 100 miles off the Somali Coast, although the crew thwarted the pirates from coming any closer to the ship, the assailants managed to launch a rocket-propelled grenade (RPG) that miraculously failed to explode when it hit the ship's side. This paper carried out the analysis of blast and impact in a fluid–structure interaction model with LS-DYNA solver. The aim of the present paper is to investigate the ballistic response of cross-stiffened panels, commonly used in ship and offshore structures, from the impact with an RPG warhead. It was found that although an RPG alone cannot threaten a highly redundant structure as a ship or an offshore platform, the developed jet from the shaped charge is certainly threatening to passengers and crew.
{"title":"The Ballistic Response of Cross-Stiffened Panels from a Rocket-Propelled Grenade","authors":"SPIRO J. PAHOS","doi":"10.1111/j.1559-3584.2010.00299.x","DOIUrl":"https://doi.org/10.1111/j.1559-3584.2010.00299.x","url":null,"abstract":"Cruise ships often transit the littoral zone of developing countries where piracy thrives. The attack against Seaborne Spirit on November 5, 2005 was countered successfully by the ship's crew but the toll could have been a lot heavier that day. Nowadays, although international forces police high-risk waters, the risk map is constantly evolving, and there have been instances where even naval vessels had to change their route in order to avoid perilous areas. In the Seaborne Spirit attack approximately 100 miles off the Somali Coast, although the crew thwarted the pirates from coming any closer to the ship, the assailants managed to launch a rocket-propelled grenade (RPG) that miraculously failed to explode when it hit the ship's side. This paper carried out the analysis of blast and impact in a fluid–structure interaction model with LS-DYNA solver. The aim of the present paper is to investigate the ballistic response of cross-stiffened panels, commonly used in ship and offshore structures, from the impact with an RPG warhead. It was found that although an RPG alone cannot threaten a highly redundant structure as a ship or an offshore platform, the developed jet from the shaped charge is certainly threatening to passengers and crew.","PeriodicalId":49775,"journal":{"name":"Naval Engineers Journal","volume":"123 1","pages":"55-65"},"PeriodicalIF":0.2,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1559-3584.2010.00299.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72328006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-04-26DOI: 10.1111/j.1559-3584.2011.00312.x
EDWARD LUNDQUIST
{"title":"“CAPS: THE ONLY FACILITY OF ITS KIND IN THE WORLD”","authors":"EDWARD LUNDQUIST","doi":"10.1111/j.1559-3584.2011.00312.x","DOIUrl":"https://doi.org/10.1111/j.1559-3584.2011.00312.x","url":null,"abstract":"","PeriodicalId":49775,"journal":{"name":"Naval Engineers Journal","volume":"123 1","pages":"15-18"},"PeriodicalIF":0.2,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1559-3584.2011.00312.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72328646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-04-26DOI: 10.1111/j.1559-3584.2010.00295.x
CHARLES BORSCH
The Life Cycle Logistics career field is by definition not a professional one. Department of Navy Life Cycle Logisticians must nevertheless operate to high degrees of professionalism in order to successfully plan, resource, and execute sustainment programs for defense systems that are effective and maximally affordable for the Fleet to own and operate. The multifaceted solutions to the challenge of advancing both the functions of logistics and its career workforce, in lieu of professional certification, is the subject of this paper.
{"title":"Only a Multipronged Strategy Can Advance the Function Life Cycle Logistics","authors":"CHARLES BORSCH","doi":"10.1111/j.1559-3584.2010.00295.x","DOIUrl":"https://doi.org/10.1111/j.1559-3584.2010.00295.x","url":null,"abstract":"<p>The Life Cycle Logistics career field is by definition not a professional one. Department of Navy Life Cycle Logisticians must nevertheless operate to high degrees of professionalism in order to successfully plan, resource, and execute sustainment programs for defense systems that are effective and maximally affordable for the Fleet to own and operate. The multifaceted solutions to the challenge of advancing both the functions of logistics and its career workforce, in lieu of professional certification, is the subject of this paper.</p>","PeriodicalId":49775,"journal":{"name":"Naval Engineers Journal","volume":"123 1","pages":"31-37"},"PeriodicalIF":0.2,"publicationDate":"2011-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1559-3584.2010.00295.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72327990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}