# Human Powered Submarine

Mechanics

Oct 24, 2013 (4 years and 6 months ago)

81 views

Team Members:

Félix

O. Rivera
V
é
lez

Héctor

M.
Lebrón

García

Héctor

J.
Collazo

Carro

Orlando

L
ó
pez

Introduction

The

human

power

submarine

is

a

very

comprehensive

project

that

involves

the

use

of

concepts

learned

from

different

courses

of

the

mechanical

engineering

bachelor’s

degree
.

The

project

consist

in

the

design

and

analysis

of

a

human

powered

submarine
.

By

doing

this

project

the

institution

will

increase

its

participation

in

international

competitions

and

also

will

enhance

the

engineering

education

of

its

students
.

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Objectives

Design

the

hull

of

the

free

flooding

marine

vehicle
.

Simulate

the

sub's

hull

using

Computational

Fluid

Dynamics

(CFD)

software
.

Design

a

submarine

propulsion

system
.

Simulate

the

behavior

of

critical

components

of

the

propulsion

system
.

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Objectives

Design a stand for the vehicle’s driver to produce a
more comfortable environment for him/ her, so
that the person can deliver the propulsion power
in a more efficient way.

Design the propeller arrangement that better suits
the propulsion system selected for this application.

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Constrains

Thrust generating
impeller.

The propulsive
power must be
provided by the
human.

Fully encapsulates
one occupant.

Operates
completely under
the surface of the
water.

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Problem Statement

Design
and simulate a free flooding (water filed)
marine vehicle that fully encapsulates one
occupant, that operates beneath the water and
uses a propeller system to generate its thrust
underwater. The propulsive power of the marine
vehicle will be supplied by the vehicle’s occupant
at the time it is used.

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Knowledge Required

Fluid

Mechanics

Mechanics

of

Material

Design

of

Mechanism

Machine

Component

Design

Material

Science

Computerize

Engineering

Graphics

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Gantt Chart

8/24

Gantt Chart

9/24

Hull Design

Goal

Statement
:

Design

the

hull

of

the

free

flooding

marine

vehicle

so

that

it

produces

the

least

amount

of

drag

possible

in

the

water

to

reach

the

desired

design

speed
.

The

vehicles

hull

should

have

enough

space

to

encapsulate

one

person,

and

the

required

internal

components
.

Simulate

the

vehicle's

hull

in

the

water

using

Computational

Fluid

Dynamics

(CFD)

software

to

understand

the

behavior

of

the

fluid

around

it
.

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Hull Design

Performance

Specification
:

The

hull

must

work

underwater
.

The

hull

must

work

filled

with

water
.

The

hull

must

have

enough

volume

to

fit

one

occupant

an

all

the

required

internal

equipment
.

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Hull Design

Performance

Specification
:

The

hull’s

shape

must

produce

the

least

amount

of

resistance

underwater
.

The hull must remain stable at
approxi
-
mately

10

to
15

ft underwater.

The

hull

design

must

meet

all

the

safety

features

required

by

the

International

Submarine

Races

contestant's

manual
.

12/24

Hull Design

Performance

Specification
:

The

hull

design

must

be

feasible

in

terms

of

manufacturing

and

cost
.

The

material’s

selected

for

design

must

resist

the

stresses

developed

by

the

internal

components

and

the

pilot’s

internal

movements
.

13/24

Hull Design

14/24

Creative Process Period

Hull Design

15/24

Creative Process Period

Hull Design

16
/24

Creative Process Period

Hull Design

17
/24

Creative Process Period

Hull Design

Analysis

&

Selection

Define

the

volume

required

for

the

vehicle
.

Select

possible

hull

shapes

Control

surfaces

analysis

Make

hydrodynamic

considerations

Stability

analysis

18/24

Hull Design

19
/24

Propulsion Mechanism Design

Goal

Statement
:

Design

a

propulsion

system

that

can

convert

efficiently

the

power

output

of

the

human

being

in

to

the

propulsive

thrust

to

reach

the

desired

design

speed
.

Simulate

the

behavior

of

critical

components

of

the

propulsion

system

using

Finite

Element

Analysis

(FEA)
.

20/24

Propulsion Mechanism Design

Performance

Specification
:

The

propulsion

power

must

be

provided

exclusively

by

the

vehicle’s

driver
.

The

propulsion

system

shall

be

directly

coupled

to

the

driver
.

All

power

trains

shall

be

direct
-
drive
.

If

lubricants

are

used

they

must

be

vegetable

type
.

21/24

Propulsion Mechanism Design

22/24

Conclusion

Up to this phase we have proposed some design ideas ,
for the vehicle’s hull and propulsion mechanism and
now we are ready to proceed with the analysis and
selection phase. In addition we have define some
important parameters needed for the hull’s design
that are related to the vehicle’s internal components.
Once the selection of this parts are completed we can
proceed to analyze in more detail the propeller design.

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