Aircraft Carrier Draft Measurement Ship Draft Team - Fall 2015

Project Overview

Introduction Newport News Shipbuilding partnered with Old Dominion University to develop a draft measuring system for use on naval aircraft carriers and submarines Guidelines Economical Reduction of risk to personnel Non-permanent mounting

Summer Overview The summer team performed a detailed comparison of non-contacting ultrasonic range finders versus laser range finders The team determined that ultrasonic systems were superior for measuring distance from a liquid surface

Sonar Overview

Ultrasonic (Principles) The ultrasonic range sensor sends a high frequency sound wave toward the water surface. The wave is then reflected back to the sensor. The distance from the sensor to the water surface is calculated based on the time of flight of the sound wave.

Fall Team Collaboration

Electronics System

Electronics System Researched hardware that met the requirements of the project Arduino micro processor development board Arduino compatible ultrasonic range sensor Arduino compatible temperature sensor Arduino compatible Bluetooth module

Current Electrical Work Researching software for each component Testing each component for functionality with code Making necessary adjustments Integrating components into full system

Current Electrical Work

Future Electrical Work Develop reliable Bluetooth transmittance from module to pc Develop human interface signal-light code Calibrate instrumentation Perform full system testing

Current User Interface Work Develop Graphic User Interface (GUI) using ‘LabVIEW’ Finalize layout of interface LED on/off Draft Temperature Humidity Develop communication between Arduino processor and LabVIEW

Future User Interface Work Convert signal output to integrate Bluetooth wireless system Present functional interface to shipyard liaison for user feedback

Testing Hardware

Current Work Ultrasonic sensor requires a clearance of 30 cm, so a small test tank would not suffice Designed floating test structure in SolidWorks “Styrofoam pontoon” Shipyard liaison recommended redesign for mountable test structure

Future Work Modify existing test rig created by the summer team Conduct initial testing using pre-existing tank Perform data collection and calibration on sensor readings

Hull Attachment and Housing

Current Work Created a 3D design of magnetic self-leveling hull attachment mounting system using Autodesk Inventor Rapidly prototyped the mounting system using the MakerBot Z18 3D printer Created a 3D design of the sensor enclosure Implemented elements to weatherproof the enclosure

Assembly

Future Work Optimize the design of the hull attachment mounting system and sensor enclosure using finite element analysis Strength Cost Production time Functionality

Project Materials Budget

Budget Received $300 start up money from the Department of Mechanical Engineering Submitted undergraduate funding proposal of $1000 Current expenses : $236

Gantt Chart

Gantt Chart (Task Assignments)

Gantt Chart (Completion Status)

Acknowledgements Faculty advisor Shipyard Liaison Dr. Miltiadis Kotinis Shipyard Liaison Butch Brenton – Manager Engineering 3, Networks, Communication, and Automation Department of Mechanical and Aerospace Eng. David Mooney – Team Manager Sam Harpin David Mann Philip Stickle Devin Samples-Wright Thomas Wheeless Department of Electrical and Computer Eng. Ashley Smith Department of Engineering Tech. Ashley Wilson – EET

Questions