Department of Systems Engineering and Operations Research Method of Analysis Future Work Context Problem amp Need Statements Mission Requirements MR1 System operators shall be protected from mine explosions ID: 490977
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Slide1
Design of an Underwater Mine Countermeasure System
Department of Systems Engineering and Operations Research
Method of Analysis
Future Work
Context
Problem & Need Statements
Mission
Requirements
MR.1
System operators shall be protected from mine explosions.
MR.2
The system shall detect underwater moored mines.MR.3 The system shall cover XX square miles in XX hours.MR.4 The system shall be transportable on current Navy ships. Concept of OperationsVehicle tows a sonar through water using existing sonar and vehicle systemsSonar Alternative: pair 3 vehicles with 2 sonar alternativesTime and cost calculations Simulation Simulate time and total cost needed to clear 1 square mile Energy will be converted to a fuel cost.Total Cost = Fuel cost + cost of manning requirements + acquisition cost + lifecycle cost . AssumptionAcceleration forces are negligibleTow angle is same for all vehicle alternatives
Problem StatementMines are a very effective method of blocking shipping lanes, restricting Naval operations.The placing of mines in waterways can have severely negative economic and environmental impact.The ability to clear waterways of mines is slow and costly. Need StatementThere is a need for the U.S Navy to improve the effectiveness of mine clearance systems by Reducing operational costIncreasing the rate of detection and neutralization of underwater minesRemoving health risk of personnelThe threat of underwater mines is increasing because they are easy to build and difficult to detect/neutralize.
Design Alternatives
Siamak
Khaledi
Hari Mann James Perkovich Samar Zayed
Importance of Maritime Travel
70% of Earth is covered in water, 80% of the human population lives within 60 miles of coastal areas, and 90% of global commerce is conducted by seaInland waterways link coastal area and cities to the open oceans, and experience heavy commercial and military trafficImportance of Naval Operations It is critical that waterways remain clear of threats for the unimpeded conduct of Coast Guard and Navy missions.Underwater mines can block waterways and severely hinder the progress of a naval fleet. GapCost to lay a minefield can be 0.5%-10% the cost of clearing a minefieldTake up to 200 times longer to clear a minefield than to lay the same minefield Sonar Operation Procedure to clear a minefieldSends sound wavesReceives sound wave echoesTowed through the waterUnderwater Mine Clearance Process 1st pass: Mine detection2nd pass: Mine neutralization3rd pass: VerificationLimitationsTransportation and manning contains majority of costOperating speed is limited by sonar
Determine the time it takes for each alternative to clear the area of mines, and how much energy was used. The energy can then be converted to a fuel cost. Fuel cost will be added to cost of manning requirements, acquisition cost, and lifecycle cost to find a total system cost.
Rate of detection needs to be considered as an input to the simulation.
Possible correlation between variable inputs for the simulation need to be addressed.
Current technology will be considered as a baseline.
Method of Analysis
Surface Alternatives
Underwater Alternatives
Airborne Alternatives
Textron Fleet-Class Common Unmanned Surface
Vessel
Lockheed Martin Remote Multi-Mission Vehicle (RMMV
)
U.S. Marine Corps K-Max
U.S. Navy Fire Scout
Value Hierarchy/Tradeoff
Utility
Cost ($)
Sonar
Alternative
Thales
T-SAS
Raytheon
AN/AQS-20A
Input/output Block Diagram
Energy Volume of Fuel Cost
Joules Gallons
$
Energy Density for:
Diesel
=
128,450
BTU/Gal.
Gasoline
=
116,090 BTU/Gal.
Energy to Cost Calculation
Upon completion of simulation, Sensitivity Analysis and Tradeoff Analysis will be performed before the presenting a recommendation upon project completion.