Thesis (Ocean E)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1980. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING. / Includes bibliographical references. / by Joseph Anthony Carnevale, Jr. / Ocean E

Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1981. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING. / Bibliography: leaf 72. / by Calvin McCoy Winey III. / M.S.

Thesis (M.S.)--Mississippi State University. Department of Aerospace Engineering. / Title from title screen. Includes bibliographical references.

Thesis (M.S.)--Naval Postgraduate School, 2003. / "June, 2003." Includes abstract. DTIC report no.: ADA417061. Includes bibliographical references (p. 87-90). Full text available online from DTIC.

Approved for public release; distribution in unlimited. / This research develops a detection rate model to analyze the effectiveness of the RDR 1500B search radar installed in the CASA 212 S43 aircraft belonging to Venezuelan Naval Aviation. The model is based on a search and detection mission to find a diesel submarine executing an incursion inside the Venezuelan Caribbean Sea area, assumed to be intermittently operating with periscopes or masts exposed above the sea surface. The analysis obtains cumulative probability of detection vs. time based on the radar manufacturer's performance data, user inputs for aircraft search area size, search speed, and search altitude, and submarine periscope or mast exposure profile. The model can use given periscope radar cross section data, or roughly calculate radar cross section given assumptions about exposed periscope height above the sea-surface and sea-state conditions. Submarine evasion due to radar counterdetection is also modeled. / Lieutenant Commander, Venezuelan Navy

I ett flertal länder pågår en utveckling av så kallade ”All electric ship” som innebär atttraditionella framdriftsystem bestående av motor-reduktionsväxel-axel-propeller ersätts meddiverse typer av elmotorer som driver propellern. Denna utveckling fortgår även inomfartygens hjälpsystem, det vill säga hydrauliska och pneumatiska pumpar, vridmotorer ochkolvar ersätts med elektriskt drivna aktuatorer. Orsaken till att man driver denna utveckling ärbland annat att minska utstrålat buller, minska energiförbrukning, minskaunderhållskostnader, öka livslängden och öka flexibiliteten i design av fartyg.Syftet med detta självständiga arbete är att utreda vilka tekniskt/taktiska fördelar Sverige kanfå om vi driver utvecklingen av svenska ubåtar mot AES. Detta självständiga arbete kommeratt begränsa sig till ett fåtal av de system som finns ombord på en ubåt och undersöka omdagens hydrauliska system kan ersättas med elektriskt drivna aktuatorer utifrån degrundläggande förmågorna ledning, underrättelser, verkan, rörlighet, uthållighet och skydd.Metoden som används för att analysera dessa eventuella fördelar med en utveckling av ubåtarmot AES är en analys av texter, denna analys bygger på ett kvalitativt tänkande. I metodeningår även kvantitativa aspekter i form av LCC, energiåtgång med mera.Resultatet visar på att en övergång till elektriska aktuatorer kan ge vinster inom förmågornaunderrättelser, uthållighet och skydd, medan förmågorna ledning, rörlighet och verkan intebedöms bli påverkade. / In numerous countries there is an ongoing development of a so-called "all electric ship"(AES) which means that the traditional operating system consisting of engine -reductiongear-shaft-propeller, is to be replaced with various types of electrical motors that drive thepropeller. This trend continues also in the ship’s auxiliary systems, i.e. hydraulic andpneumatic pumps, rotary engines and pistons are replaced by electrically operated actuators.The purpose with this development is to reduce the radiated noise, reduce energyconsumption, reduce maintenance costs, increase the predicted useful service life andimprove flexibility in the design of the ship.The objective of this independent essay is to ascertain what technical/tactical advantagesSweden can achieve if Swedish submarines embrace AES. This independent essay will belimited to a few of the auxiliary systems on board a submarine. It will examine whethertoday's hydraulic system can be replaced by electrically operated actuators on the basis of thefundamental tactical capabilities, command and control, intelligence, weapon effectiveness,mobility, endurance and protection.The method used to analyze the potential benefits of a development of submarines towardsAES is an analysis of texts; this analysis is based on qualitative thinking. The method alsoincludes quantitative aspects in terms of LCC, energy effectiveness as well as other subjects.The result shows that a change over to electric actuators can provide benefits in the followingfundamental tactical capabilities, intelligence, endurance and protection.While the fundamental tactical capabilities, command and control, weapon effectiveness andmobility are expected not to be affected. / Avdelning: ALB - Slutet Mag 3 C-upps. Hylla: Upps. ChP T 06-08

Call number: LD2668 .T4 1986 M63 / Master of Arts / History

Thesis (doctoral)--Universität, Dortmund, 1999. / Slightly rev. new edition.