MAGNETIC LEVITATION DEMODesign Review

Dept. of Mechanical Eng.

Introduction - WelcomeIntroduction - Welcome

Design Team 11• Fuyuan Lin – Research & Development

• Xiaodong Wang – Research & Development

• Ajay Puppala – Project Management & Hardware

• Marlon McCombie – Firmware & Hardware

Dept. of Mechanical Eng.

To design and build a portable and compact demonstration device

Magnetically levitate an object

Demonstrate various Engineering control system theories from MECH 4900 Systems II class

Scope

Dept. of Mechanical Eng.

Requirements

Characteristics of the device:Portable and compactViewable from a distancePlug & PlaySafe to useShall not exceed regular power requirementsGUI interactionMATLAB/Simulink operatedGraphical system response output$1,000 budget

Dept. of Mechanical Eng.

Anticipated Challenges

Visible motion of levitated object

Integration of design components

Time & Budget management

Object and electromagnet core material

Dept. of Mechanical Eng.

Anticipated Challenges Programming

No previous background at level required Using MATLAB/Simulink toolbox

Testing Retrieving and plotting data from sensors Levitation and circuit required to control magnetic

field strength

Building prototype by the end of November

Dept. of Mechanical Eng.

Current ProgressResearch & Development

• Simplifying object levitationI. Maximum magnetic forceII. Force analysis

• Selection criteriaI. Wire gageII. Magnetic saturation limit III. ObjectIV. Electromagnet core

Dept. of Mechanical Eng.

Current Status

Hall effect sensor

(Picture courtesy of Melexis)

Linear Variable Differential Transducer (LVDT) sensor

(Picture courtesy of RDP Group)

Photoelectric sensor

(Courtesy of Pepperl+Fuchs).

Dept. of Mechanical Eng.

Current Status

• Microcontroller & Current Control• Selection

• Arduino versus LEGO Mindstorms NXT

• Established MATLAB communication• MATLAB Toolbox• Demonstration – Blinking LEDs• Proof of data transmission

Dept. of Mechanical Eng.

General Schematic

Figure shows configuration of various devices required for the magnetic levitation (Courtesy of ImageShack).

Dept. of Mechanical Eng.

Hand Sketches

Dept. of Mechanical Eng.

Two electromagnet design with Hall Effect sensor

Single electromagnet with photoelectric sensor

Vertical ring arrangement

Design employing Hall Effect sensor

Hand Sketches

Dept. of Mechanical Eng.

Figure shows top and side view of the track design

Toroidal Electromagnet Design

Questions/Comments

Dept. of Mechanical Eng.