Accession Number : ADA609380


Title :   Improving the Parametric Method of Cost Estimating Relationships of Naval Ships


Descriptive Note : Master's thesis


Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF MECHANICAL ENGINEERING


Personal Author(s) : Lee, Ungtae


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a609380.pdf


Report Date : 01 Jun 2014


Pagination or Media Count : 98


Abstract : In light of recent military budget cuts, there has been a recent focus on determining methods to reduce the cost of Navy ships. A RAND National Defense Research Institute study showed many sources of cost escalation for Navy ships. Among them included characteristic complexity of modern Naval ships, which contributed to half of customer driven factors. This paper focuses on improving the current parametric cost estimating method used as referenced in NAVSEA's Cost Estimating Handbook. Currently, weight is used as the most common variable for determining cost in the parametric method because it's a consistent physical property and most readily available. Optimizing ship design based on weight may increase density and complexity because ship size is minimized. This paper will introduce electric power density and outfit density as additional variables to the parametric cost estimating equation and will show how this can improve the early stage cost estimating relationships of Navy ships.


Descriptors :   *COST ESTIMATES , *EQUATIONS , *NAVAL VESSELS , *PARAMETRIC ANALYSIS , CASE STUDIES , DATA ACQUISITION , DENSITY , ELECTRIC POWER , MILITARY BUDGETS , MODELS , RISK ANALYSIS , SIZES(DIMENSIONS) , VARIABLES , WEIGHT


Subject Categories : Economics and Cost Analysis
      Numerical Mathematics
      Theoretical Mathematics
      Marine Engineering


Distribution Statement : APPROVED FOR PUBLIC RELEASE