Download pdf - Mid Term Progress Presentation (Final Draft)

BEF35703 ELECTRICAL DESIGN PROJECTROWING SIMULATION EXERCISE MACHINEPrepared by: Lim Jian Xiu

Planning Effectiveness

Design Block Diagram

Problem Identification

Problem Analysis

Functionality Analysis

Design Troubleshooting

Evaluation of Proposed Solution

Detailed Design Description

Project Development

CONTENTS


ERG Rowing Machine Alternator

Equation 1: Potential Power Generated by the Rower where,

P= Maximum potential powerP = τR⋅ωτR = Rower torque at the shaft sprocketω = Angular velocity of the flywheel

Equation 2: Definition of Torqueτ = r⋅ F sinθ

Equation 3: Continuous motion Torqueτ = rF

Equation 4: Conversion from RPM to Angular Velocity

ω = RPM ⋅2π 60

Equation 1:Amps x Volts = WattsWatts / 745.7 = Electrical Horsepower ProducedElectrical HP X 25% (.25) Efficiency Loss = Horsepower LostElectrical HP Produced + HP Lost = Total Horsepower Used

Equation 2:Formula to an alternator that produces 45A at 12V:45x 12 = 540 Watts540/746 = 0.72 Electrical Horsepower Produced0.72 x 0.25 = 0.18 Horsepower Lost0.72 + 0.18 = 0.9 Horsepower Used

Equation 3:Formula: AC = DC / 0.636 Where, AC - Alternating Current DC - Direct Current 0.636 – Constant

Rectifier


Voltage Regulator 1

Voltage Regulator 2


1. ERG Machine

2. Alternator

4. Battery

6. PIC Keypad

7. Japanese Architecture

3. Voltage Regulator 5. Voltage Regulator

Design Block Diagram

Problem Identification

02

03

04

05

01

06

01. Voltage Unstable

02. Rigid and Heavy

03. Alternator Connection

04. Different Circuits

05. Modification on USB

06. Technical Help

Voltage produced by the rowing machine is not stable.

Rowing machine is a rigid and heavy machine.

Flywheel rowing machine and pulley alternator connection are difficult because of our design.

Different circuit simulation from the previous idea which we had design it.

Need modify the cable part (Micro USB Cable).

Need help from the technical leader who are familiar with the rowing machine.

Problem Analysis

Fixed and Not Portable

Pulley and Flywheel Unstable Voltage

Hardware Troubleshooting

Circuit Simulation

Functionality Analysis

Alternator Circuit Voltage Regulator Circuit

PIC16F877 with Keypad


Rowing Machine Prototype

L-shape Metal Frame Fixed Cog Connected to Bicycle Wheel

Freewheel Connected to Bicycle Wheel

PIC Circuit Voltage Regulator 1 Circuit Voltage Regulator 2 Circuit


Evaluation of Proposed Solution

Japanese Architecture

Prototype

Rowing Machine Prototype

Power Bank

Place to put circuit boards

Alternator from Kancil


Our Project Direction Current Project SituationPeople Involved

Strength

Weakness

Opportunities

Threats

Suitable alternator

Determine a systematic way to connect alternator

Prototype with LED

Group members

Rowing athletes

Administrative

Collaborator

Monitoring and Evaluation Our Goal

Resourcing organizations

Operational and work plans

Advice from faculty advisor

Equipment and materials

A well-written plan is essential for future development and systematic progression of a project.


1

2

3

4

Committee Members

All the committee members require to be involved in the planning process

Rowing Athletes

Rowing athletes from the UTHM rowing team will be affected by our project since they will help out with our prototype

Dr. Kok and management committee from PSU (PUSAT SUKAN UTHM) will be responsible to monitor the implementation of our project

Collaborator

Co-Founder of Biji-BijiInitiative, Mr. MatthieuMaertens will be our financial support and guiding us in this project.

Administration


Research Idea from Sensō-ji Pagoda at

Tokyo, Japan

Night view of Sensō-jiPagoda when lighting up

Sensō-ji PagodaArchitecture Prototype

Project Development

Our project collaborator Matthieu MertensCo-Founder of Biji-Biji Initiative

(Partner. Head of Electronics & Systems)

Project Development

Y o u

T h a n k