EGB241 – Electromagnetics and Machines - Engineering Assignment Help

Assignment Task

DC Motor Building Assignment

Assignment Description

The purpose of this assignment is to give you practical experience designing and building a DC motor. The DC motor assignment consists of two parts. The first is a computing design task that will help you design and simulate your DC motor prior to construction. The results of this analysis will be used to make important design decisions for your actual motor build. The second part is to construct a DC motor that will be demonstrated in Week 13. This assignment will be completed by GROUPS OF FIVE STUDENTS. You may select your own groups, which will be done using the Blackboard groups system.

Knowledge Requirements

Before you are able to complete your DC Motor Assignment you will need to know:

• DC motor parameters and how these affect motor performance.

• How DC motors are physically constructed.

• How to test DC motors to assess performance.

• How to use Excel and MATLAB.

Assignment Task

Your group is required to submit a motor proposal in the form of a one page outline, an Excel workbook, and a MATLAB script. This outline is to be submitted as a ‘tender’ document which goes out to the client. Contained in the one-page outline should be:

• Details on your motor size and structure.

• Summary of calculations including, rotor size, number of turns, number of coils, type of motor, current and voltage specifications.

• You should also include the operating torque and speed that your motor should generate, the expected mechanical output power, and theoretical efficiency. List any sources of loss and the factor that you have allowed for to ensure that your expected results align with the targets listed in the CRA.

In the Excel sheet:

• You are expected to use the Excel sheet to find:

o Motor Constant K.

o Resistance of the armature.

o Expected speed of the motor in rpm (using terminal voltage).

o Expected torque generated of the motor in Nm (using armature current).

o Ideal mechanical power out.

o Expected mechanical power out (include factor for inefficiencies).

• Ensure your sheet is clear, and well-presented and includes at least one example of data validation, custom cell formatting and static cell references.

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