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Career Conducted regular project meetings with the

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                                                       Career
Episode -1

 

a)   
Introduction

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CE 1.1         

My first career episode is based on my project DEVELOPMENT OF
AMPHIBIOUS AEROPLANE initiated by me as a partial fulfilment
for the requirement of the degree of Bachelor of Engineering in Mechanical
Engineering, The project duration was 2 months, started in Dec 2011 and
completed in Feb 2012. The project was based in my college, Toc H institute of
Science and Technology Kochi, India.

b)   
Background

CE 1.2

Toc H Institute of Science and
Technology is one of the leading professional college in the country affiliated
to Cochin University of Science and Technology. The project was carried out in
the campus of Toc H Institute of Science and Technology. The aim of the project was to design and develop an
amphibious aeroplane which can travel over
land, water and sea as the name implies. The plane is able to fly,
travel with speed, start, stop, and travel over land as well as water. The
plane will have a float at the base which helps it to land and move through water. My
plan was to develop the aero plane at low cost.

 

CE 1.3

I have performed the following tasks during the project;

·        
Prepared the
project planning and monitored the planning throughout the
project.

·        
Investigated
and studied the working of different type’s aircraft.

·        
Studied and
prepared report on the feasibility of the project

·        
Designed the aircraft and prepared
mathematical design calculations

·        
Prepared model of the aero plane using a drawing
software

·        
Performed
material planning and arranged materials as per required specifications

·        
Monitored the
entire fabrication process.

·        
Conducted
regular project meetings with the project guide and the team

·        
Prepared the project
report

 

 

 

 

CE 1.4

Below is the hierarchy of the project with clear demonstration of
my position;

 

c)    
Personal engineering Activity

CE 1.5

The project started with literature review and detailed research about amphibious
aero planes and its scopes. I studied the principles of aero modelling and
learned the designing of aircraft. After research and studies, I drafted a brief project synopsis narrating the
motivation behind the project, estimated cost and results expected after
discussing with my department
head and project guide. I planned the project and prepared a schedule for
timely completion. The project was planned to complete within 2 months.

CE 1.6

The first stage of the project was to carry out necessary design
calculation. Designing is a
tough task and it needs deep knowledge in the field. The design calculation contains
two stages, determining the dimension of the fuselage and wings and checking
the stability of aircraft. The dimensions were found out by using aircraft designing
software XFLR5. The aircraft was designed to develop with fuselage length of 75
cm and wings with span 1m. Then I carried out stability calculations and
determined the neutral point which determines the stability of aircraft. I
choose thrust motor to provide power to run the propeller. I consulted with the
aeromodelling lab during design and ensured the key elements of aeromodelling.

CE 1.7

After the design stage, I moved further
towards arranging the required materials. The fuselage was planned to craft with
balsa, one of the lightest but remarkably strong wood. This is to reduce the
overall weight of the aircraft. I used high density foam known as EPP for
crafting the wings. The other electronic components like Thrust motor, servo
motor, propeller, Electronic speed control, transmitter and receiver were
arranged as per the required specifications.

 

CE 1.8   

One of the challenges we faced was the making of wings. I adopted wire
cutting process to make wings. Wire cutting is
a process by which wire is heated by passing current through it and cutting the
material by moving through it. We used high density EPP (expanded poly
propylene) to make the wings. So wire Cutting is the best process to make the
wings. First we made Sheet metal pieces in the shape of the cross section of
wing which is aerofoil and then it is attached to the sides of the EPP piece. An
apparatus for wire cutting is made using wood and Nichrome wire is fixed on the
apparatus. Then current is passed through and wire gets heated. The EPP is
moved over heated nichrome wire to cut wings with the cross section of
aerofoil. This process was carried out in the workshop by experienced
technicians. I properly monitored the entire wire cutting process and ensured
precise cutting.

CE 1.9

Brown
paper is then wrapped over the wing to make it stronger. Then a piece is cut
from both the wings to make ailerons. Ailerons should act as a flap so it’s
attached to the wings using silicon glue. Thus it can be moved up and down to
control the flight. Then a slot of length 50cm is cut on downside of both the
wings using soldering iron to attach carbon Fibre road to the wing. The purpose
is for its reinforcement and thus the wings get stronger. A servomotor was
connected under the wing for aileron movement. Fuselage is made using balsa
wood of 1m length. Both the main wing and tail is inserted into the balsa by
cutting slots in the balsa.  Fin is fixed
between the tail and a slot is cut on the tail to make the rudder movement
possible. A piece of balsa is fixed in the fuselage to place servo motors for
elevator and rudder. The Propeller is fixed at the front of the fuselage and I
fixed all other components like landing gear, Speed control system etc.

CE 1.10

 Many tests were
performed after the development of aircraft. The design was tested for the
ability to glide. Flaps were tested for its proper movement. I trained myself
in controlling the flight using flight simulator. After proper testing, we decided to perform the trail run. I
ensured the proper working of all components. The trial run was performed in a
ground with enough space as runway. The plane reached the desired speed after 15
sec run in the ground. The trial run was a success and I was able to control
the flight and landing of the aircraft.  

CE 1.11

In this project, I applied
the knowledge gained from my B tech in mechanical engineering. My knowledge in
the field of aeromodelling, stability calculations, fabrication, engineering
drawing, and material planning helped me to accomplish my aim. I spend time in
home work especially for reading related books and searching through the internet.
The training I attended at the aeromodelling lab of our college helped me a lot
in accomplishing the result.  

 

CE 1.12

I ensured the key concepts of team management were followed in all
the stages. I got a hardworking and experienced team and I guided them properly
which really helped me to complete the project on time without any delay. My
project guide provided me needed advices and I updated the project progress to
my department head in regular intervals. The materials were collected after
proper study.

 

CE 1.13

The detailed project report has been prepared by me after the success
of the project which includes the overall processes, design calculations, drawing,
materials and tools used and photos. Proper channels were adopted by me in
purchasing the materials. I always considered the safety of the people working
behind the project throughout especially at the time of fabrication. I ensured
that my team was following the safety precautions and wearing the safety equipment.

d)    
Summary

CE 1.14

I completed the project within the scheduled time frame. It was a success and I was
personally involved throughout the course of the project. The aim of developing
an aircraft that can move three medium was fulfilled. It was the result of the
efforts I had put in together with the
support from the team. After the
completion of the project, my knowledge and skill level improved and got myself
equipped in facing problems that can arise in my future career. It also helped me
in improving my team management and coordinating skills. 

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