RESEARCH PAPERS

space elevator




The space elevator
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If the static coefficient of friction is as low as 0.1, wheels on a 900 kg climber must be compressed together with a total force of 10,000 lbs (5 tons)? µ=. 1 is right in the middle of the expected range for coefficient of friction? Lower µ would make the ribbon too slippery 

The Space Elevator NIAC Phase II Final Report
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Executive Summary This document in combination with the book The Space Elevator Advanced Concepts Phase II grant to develop the space elevator. The effort was led by 

Konstantin Tsiolkovski and the Origin of the Space Elevator
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The space elevator, variously called the" orbital tower," a" heavenly funicular," or even a" beanstalk," has been dreamed of and invented many times. Arthur Clarke gave a review of the space elevator history at the 1979 IAF Congress in Munich, Germany. 1 Clarke 

The Space Elevator: Economics and Applications
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ABSTRACT Conceived as a 100,000 km ribbon built of carbon nanotubes, the Space Elevator will have a tremendous impact upon society and industry when launch-to-orbit costs are reduced to around an anticipated $100/kg. This paper will cover the approximate 

space elevator
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Reaching space without flying is an idea that has been around since the 19th century. In recent years, the concept has reemerged in the form of the space elevator, a proposed 62,000-mi.-long ribbon that would stretch into space from a floating platform in the 

The space elevator: an ideal application for the free electron laser
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ABSTRACT All space activities rely completely on rockets to get into space. Advanced propulsion systems are being examined by NASA and others but few if any of these technologies, even if perfected, can provide the high-volume, low-cost transportation 

Space Elevator Dynamic Response to In-Transit Climbers
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ABSTRACT This presents findings of time-domain simulation studies of the space elevator using the Generalized Tethered Object Simulation System (GTOSS). Overview of mathematical models comprising GTOSS are presented. Physical configuration of the 

Safe Space Elevator-An Expectation to be met Through a System Architecture Approach
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ABSTRACT The expectation by the public of the safety of an elevator is no worries. Everyone expects to arrive safely when riding an elevator even a Space Elevator. As such, the survival of the Space Elevator must also have extremely high expectation levels. The 

Linear Dynamics of the Space Elevator in the Absence of Climbers
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Page 1. Linear Dynamics of the Space Elevator in the Absence of Climbers by Blaise Gassend  I The dynamics seem pretty tame. We have covered: I Forces involved in Space Elevator dynamics. I Oscillation modes of the elevator. I A mode exists near 24h but the resonance with 

Space Elevator Base Leg Architecture
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ABSTRACT While the Space Elevator stretches for 104,000 kilometers, the region of most concern, from the survival perspective, is 2,500 kms and below. The threats inside this dangerous arena include debris, spacecraft, meteorites, lightening, winds, rogue waves, 

The NIAC Space Elevator Program
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ABSTRACT The NASA Institute for Advanced Concepts (NIAC) has been supporting a space elevator development program to investigate the initial design, deployment and operations scenario. The work has produced a plan for the construction and operation of a small (20 

A Space Elevator Based Exploration Strategy
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Technological advances and recent studies have laid the groundwork for eventual construction of a space elevator. Within 15 years an operational space elevator could be running from Earth to beyond geosynchronous. The basic mechanical operation allows for 

Magnetically levitated space elevator to low-earth orbit
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The properties of currently available NbTi superconductors and carbon-fiber structural materials enable the possibility of constructing a magnetically levitated space elevator from the earth's surface up to an altitude of˜ 200 km. The magnetic part of the elevator consists 

Space Elevator Initial Construction Mission Overview
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DD Lang ,URL:(cited 1 Feb. 2010) ,keithcu.com ABSTRACT This paper presents an overview of a proposed GEO-originating deployment mission flight scenario currently under consideration to accomplish the initial construction of a space elevator. Much as a suspension bridge's initial strand of cable must be 

Approximating Aerodynamic Response of the Space Elevator to Lower Atmospheric Wind
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ABSTRACT This presents findings of time-domain simulation studies of the space elevator using the Generalized Tethered Object Simulation System (GTOSS). Brief overviews of the mathematical models comprising GTOSS are presented. A simplified, subsonic, flat-plate 

Does Singapore's destiny lie in outer space?: space elevator project could be a start.
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Currently, the Civil Aviation Authority of Singapore is reviewing plans to construct a commercial tourist spaceport to launch Russian-built sub-orbital space planes carrying wealthy tourists on the ultimate theme park ride. This is an interesting experiment, but 

Space elevator systems level analysis
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ABSTRACT In this paper an outline of systems engineering activity is presented. Then systems engineering principles are applied to the highest levels of the space elevator system. The first level of the space elevator system is broken down into nanotube ribbon, 

CHALLENGES IN BUILDING SPACE ELEVATOR
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ABSTRACT The Space Elevator is the most promising Space Transportation system on the drawing boards today, combining scalability, low cost, qualify of ride, and safety to deliver truly commercial-grade space access-practically comparable to a train ride to space. A 

IAC-04-IAA. 3.8. 3.07 THE LUNAR SPACE ELEVATOR
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J Pearson, E Levin, J Oldson, H Wykes ,spaceelevator.com ABSTRACT This paper examines lunar space elevators, a concept originated by the lead author, for lunar development. Lunar space elevators are flexible structures connecting the lunar surface with counterweights located beyond the L1 or L2 Lagrangian points in the 


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