Helpful for understanding.

1. SPACE ELEVATOR
Prepared by:-
Rana Rutvik Pravinkumar

2. HISTORY OF SPACE ELEVATOR:-
 The key concept of the space elevator appeared in 1895 when
russian scientist konstantin tsiolkovsky was inspired by the Eiffel
tower in paris.
 NASA holds first workshop on space elevators after the discovery of
carbon nano tubes in1999.
 Further research have been carried out to make it a succesful
project.
 Obayashi corporation announced that by 2050 it could build a space
elevator using carbon nanotube technology in the beginning of 2015.
 In 2018, researchers at japan’s shizuoka university launched
STARS-Me, two cubesats connected by a tether, which a mini
elevator will travel on.

3. MINI-SPACE EOR PROJECT BY JAPAN

4. INTRODUCTION:-
A new space
transportation system being
developed that could make
travel to geostationary
earth orbit and transform
the global economy and
bring the new thinking/idea.
It’s fiction that could
become a reality in the near
future.

5. WHAT IS SPACE ELELVATOR?
Cable attached to the Earth near the
equator which extends directly in to
space and is attached to a small
counterweight revolving in orbit.
Stays in position because the
gravitational force is equal to the
centrifugal force.
Space elevators are incredibly tall
structures that stretch beyond the
atmosphere to transport satellites and
shuttles into outer space without much
cost and environmental impact of rocket
fueled launcher consisting of a 1,00,000
Km long cable.
The earthbound end would be attached
to a floating platform in the middle of an
ocean, while the other end would be
fixed to an orbiting object

6. ADVANTAGES:-
 Low operations costs - US$250/kg to LEO, GEO, Moon,
Mars, Venus or the asteroid belt.
 No launch vibrations Safe access to space - no explosive
propellants or dangerous launch or re-entry forces.
 Easily expandable to large systems or multiple systems
 Easily implemented at many solar system locations.
 Energy efficient compared to the use of rockets.
 Jobs are created from the construction and maintenance.
 No payload envelope restrictions.
 Reduce the costs of telecommunication.

7. DISADVANTAGES:-
 A space elevator may cause a navigation hazard
both to aircraft and spacecraft.
 Impacts made by the meteoroids and
micrometeorites pose a more difficult problem to the
space elevator.

8. COMPONENTS:-
1) ANCHORS/BASE STATION
2) RIBBON/CABLES/TETHERS
3) CLIMERS/ELEVATOR CAR
4) POWER SOURCE
5) COUNTERWEIGHTS

9. ANCHORS/BASE
STATION:-
The base stations are classified in two
categories:
Stationary and Mobile Base
Station.
Mobile stations are typically large
oceangoing vessels.
Stationary stations are located on high
altitudes such as on the top of
mountains or on high towers etc.
Anchor station is a mobile, ocean-
going platform identical to ones used in
oil drilling.
Weather and mobility are primary
factors.

10. RIBBON/TETHERS:-
 The cable made of a
material with a large tensile
strength/density.
 Ribbon is long cable of light
flexible , Ultra Strong Metal
which provides grip for
climber.
 Ribbon means tether cable
which holds two
components i.e. anchor And
counter weight.
 It is made of carbon
nanotubes in a composite
matrix that would be wound
into a spool so that it would
be launched into orbit.

11. MATERIAL WHICH ARE CAPABLE TO MAKE
SPACE ELEVATOR ON MOON:-

12. CLIMERS/ELEVATO
CAR:-
 Used as launch vehicle.
 Payloads from 20,000-
1,000,000kg.
 Velocity up to 200km/hr.
 These are mainly the robotics lifter
which use the ribbon to move in the
space.
 Traction tread rollers on the lifter
would clamp on to the ribbon and
pull the ribbon through, enabling
the elevator to climb up the lifter.
 Climber powered by electron laser
and photovolatic cells, with power
requirements of 1.4-120MW.

13. POWER SOURCE:-
 These are just source of energy
and power for the climber.
 The energy can be transferred to
the climber through various
method.
 Transfer the energy to climber
through wireless energy transfer
while it is climbing.
 Trasfer the energy to the climber
through some material stucture
while it is climbing.
 Store the energy in the climber
before starts required an
extremely high sp. energy such as
nuclear energy.
 Electron lasser can be used to
deliver power.

14. COUNTER WEIGHT:-
 Two dominant method have been proposed.
 One is a heavy like space station and another is
expanding cable itself well past geosychronous
orbit.
 These are used to balance upward and downward
gravity to cetrifugal force.

15. WORKING:-

16. WHY IT IS NEED TO BUILD SPACE ELEVATOR?

17. CHALLENGES TO MAKE
THE SPACE ELEVATOR?

18. FUTURE SCOPE:-
 Material development efforts are increase by
government as well as private agencies.
 Countries are aware to develop space elevator so
they reduce excessive cost of launching of satellite.
 By the year 2050, you may not need a rocket to
reach the moon, just an elevator.

19. APPLICATION:-
 Solar Power Station:-Economical and clean power
source use on earth.
 Telecommunications:-Enable extremely high
performance system.

20. WHY SPACE ELEVATOR IS MAKE ON MARS IS
VERY EASY:-

21. COMPARISON BETWEEN ROCKET AND SPACE
ELEVATOR:-

22. THANK YOU
FOR YOUR
TIME.