Mechanical Engineering Portfolio

M S C A U TO M OT I V E E N G I N E E R

BSC MECHANICAL ENGINEER

PORTFOLIO Jonathan Noaime

Welcome, and thank you for taking the time to

view my portfolio. The Goal of this portfolio is to give you a deeper insight into my experiences

and skills I have gained over my recent history.

It is my hope that this will allow you to

better assess how my skills can be applied to your company.

I would be happy to talk in more detail and can be reached using the contact

information at the bottom of this page.

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

INDEX

Professional Project: Exo-Wheelchair Formula E Transmission Formula SAE Chassis Design & Analysis Formula SAE Project Arduino Projects

Lower Limb Exoskeleton: Walking Rehabilitation Aid (Generative Design)

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

LOWER LIMB EXOSKELETON: WA L K I N G R E H A B I L I TAT I O N A I D (G E N E R AT I V E D E S I G N )

The aim of this project was to design a lightweight lower limb Exoskeleton structure using generative design to be retrofitted on a typical wheelchair that can operate for a minimum of 5 minutes to provide an Exo-wheelchair. It has adjustable parts to fit a wide range of users and it is charged directly from the wheelchair.

THE OBJECTIVES SET WERE:

1 // Consider anthropometric measurements.

2 // Select the most favourable actuator and transmission.

3 // Design actuator system.

4 // Select the appropriate power supply.

5 // Design frame structure using Generative Design.

(Fusion 360 and Solidworks) 6 // Select the appropriate material and coating.

7 // Demonstrate the manufacturing processes of each component.

8 // Simulate Finite Element Analysis on generative design parts. (ANSYS) 9 // Calculate the cost of the device

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

LOWER LIMB EXOSKELETON: WA L K I N G R E H A B I L I TAT I O N A I D (G E N E R AT I V E D E S I G N )

G E N E R AT I V E

D E S I G N T R A N S F O R M AT I O N

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

LOWER LIMB EXOSKELETON:

CONNECTOR OF TURN

OUTPUT SHAFT

HARMONIC DRIVE

INPUT SHAFT

FLEXIBLE COUPLING

MOTOR

WA L K I N G R E H A B I L I TAT I O N A I D (G E N E R AT I V E D E S I G N )

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

Single Gear Transmission for Formula E Vehicle

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

SINGLE GEAR TRANSMISSION FOR FORMULA E VEHICLE

The materials were carefully selected in order to withstand the incredibly high forces of a Formula E vehicle. After carful calculations, the design of the shaft resulted in a lightweight and rigid component.

The gear is manufactured using 5 axis milling process and is linked to the shaft using a key.

The final cost of the transmission was calculated to be 117 GBP with a mass of 1.6 kg thus minimising the inertia forces.

Drawings of each component were done with a BOM and tolerances and is ready to undergo the next stage – Manufacturing.

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

Formula SAE Chassis Frame Design & Analysis A design optimisation of the Leeds Formula Student car was done, resulting in a lighter and stiffer model to increase the driving performance of the vehicle and the driver’s confidence towards the car.

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

Formula Student Project

The aim of this project was to

The cooling system was an

design a room to fit the dyno

open loop system by feeding

rig with the engine, plenum,

cool water in the room and

exhaust and cooling system

unloading hot water outside

with a rear axle with a 3:1

the room. The throttle is

fixed gear ratio. The engine is

controlled using an Arduino

mounted on the frame in

system by controlling the

front of the dyno and is

valve with a potentiometer.

adjustable using 2 sliders.

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

Arduino Projects RC CAR PROTOTYPE

A remote controlled car controlled using any android device via bluetooth which can move in any direction and it is able to emit sounds.

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

ARDUINO PROJECTS

GIMBAL PROJECT PROTOTYPE

The Gimbal allows an object to be independent of the external forces applied to the frame. This Gimbal has 3 servo motors that covers 3 degrees of freedom which allows the platform to remain stable regardless of how the bottom stick is pivoted about any axis.

This project consists of an Arduino Nano, a MPU6050 sensor, a buck converter, and a 9V battery, servo motors and a switch.

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

ARDUINO PROJECTS

The frame was designed on Solidworks and then 3D printed using PLA and a 20% honeycomb filling.

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

CubeSat Attitude Control System Design The CubeSat project focuses on creating a detumbling controller by manipulating a magnetic torquer that generates a magnetic field which then spins the satellite in a controlled manner.

The algorithm used is the B-dot controller.

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

C U B E S AT AT T I T U D E C O N T R O L SYS T E M D E S I G N

BLOCK DEFINITION DIAGRAM OF THE B-DOT CONTROLLER CUBESAT USING SYSML

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

C U B E S AT AT T I T U D E C O N T R O L SYS T E M D E S I G N

THE OPTIMAL COMBINATION OF GAIN & SAMPLING TIME TO OBTAIN THE SHORTEST SETTLING TIME

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

C U B E S AT AT T I T U D E C O N T R O L SYS T E M D E S I G N

THE CURRENT OF THE MAGNETIC TORQUE SHOULD NOT EXCEED 0.2 A

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

C U B E S AT AT T I T U D E C O N T R O L SYS T E M D E S I G N

SIMULINK DIAGRAM OF THE ATTITUDE CONTROL SYSTEM

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

C U B E S AT AT T I T U D E C O N T R O L SYS T E M D E S I G N

J O N AT H A N N OA I M E – M E C H A N I C A L E N G I N E E R P O R T F O L I O – J O N AT H A N . N E A I M E @ G M A I L .C O M - + 9 6 1 7 1 7 8 1 1 8 5

THANK YOU

PORTFOLIO Jonathan Noaime