Electric Solar Wind Sail: Deployment, Long-Term Dynamics, and Control Hardware Requirements

Toivanen, Petri; Janhunen, P.

doi:10.1007/978-3-642-34907-2_58

Cited by 5 publications

(7 citation statements)

References 6 publications

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“…For the specific case of electric sails, deployment of these tethers has in the past been studied by Janhunen, with current concepts requiring the use of remote units on the end of each tether. 10 These remote units may be controlled either by reaction control or using a freely guided photonic blade. 11 Fulton examined the deployment dynamics of an E-Sail, yielding solutions for the deployment time as well as torque requirements for a large electric sail deployment, further illustrating the difficulty of performing the required maneuvers.…”

Section: Deployment Of Tethers and Initial Spinup Of Large Herts Spacecraftmentioning

confidence: 99%

The Heliopause Electrostatic Rapid Transit System (HERTS) - Design, Trades, and Analyses Performed in a Two Year NASA Investigation of Electric Sail Propulsion Systems

Wiegmann

2017

53rd AIAA/SAE/ASEE Joint Propulsion Conference

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I. IntroductionP ersonnel from NASA's MSFC have been investigating the feasibility of an advanced propulsion system known as the Electric Sail (E-Sail) for future scientific exploration missions. This team initially won a NASA Space Technology Mission Directorate (STMD) Phase I NASA Innovative Advanced Concept (NIAC) award and then a two-year follow-on Phase II NIAC award in October 2015. This paper documents the findings from this three-year investigation.An Electric sail, a propellant-less propulsion system, uses solar wind ions to rapidly travel either to deep space or the inner solar system. Scientific spacecraft could reach Pluto in ~5 years, or the boundary of the solar system in ten to twelve years compared to the thirty-five plus years the Voyager spacecraft took.The team's recent focuses have been:1) Developing a Particle in Cell (PIC) numeric engineering model from MSFC's experimental data on the interaction between simulated solar wind and a charged bare wire that can be applied to a variety of missions, 2) Determining what missions could benefit from this revolutionary propulsion system, 3) Conceptualizing spacecraft designs for various tasks: to reach the solar system's edge, to orbit the sun as Heliophysics sentinels, or to examine a multitude of asteroids.

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Section: Deployment Of Tethers and Initial Spinup Of Large Herts Spacecraftmentioning

confidence: 99%

The Heliopause Electrostatic Rapid Transit System (HERTS) - Design, Trades, and Analyses Performed in a Two Year NASA Investigation of Electric Sail Propulsion Systems

Wiegmann

2017

53rd AIAA/SAE/ASEE Joint Propulsion Conference

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“…The E-sail consists of a main spacecraft connected with a multiple of long and thin conductive tethers that are positively charged by a solarpowered electron gun on the spacecraft. Each tether contains a remote unit at its end, which comprises a small gas or ion thruster to control the main tether's angular velocity [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…To address the problem, the discretized model of tether has been proposed. A typical approach is to discretize tethers into a series of lumped mass connected by massless springs and dampers [4,10]. It transforms the nonlinear partial differential equations of a tether into a set of ordinary differential equations, and it is actually a special case of the finite element method [11].…”

Section: Introductionmentioning

confidence: 99%

“…The results of the orbital dynamic motion of E-sailThe characteristics of the coupled motion between the orbital and spinning motions of E-sail is analyzed for a period of 36,000 s. The simulation results are shown inFigs. 3 to 4, where the time scale is changed from seconds to the number of4 Copyright © 2018 by CSME period of self-spinning, 0 / (2 ) t…”

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confidence: 99%

“…Substituting Eqs (3). and(4) into Eq. (8) and rearranging them into the matrix form yield the following dynamic equation for the k-th element,…”

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confidence: 99%

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Coupled Orbital-Attitude Dynamics Of Flexible Electric Solar Wind Sail

Li¹,

Zhu²

2018

Progress in Canadian Mechanical Engineering

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This paper studies the dynamic characteristics of an electric solar wind propulsion system. To study the coupled interaction of the orbital and self-spinning motions of an electric solar wind propulsion system, a high-fidelity model is built up by using the nodal position finite element method, where the axial elastic and transverse dynamic motions of tether with the electric effects are considered. The coupling effects between the orbital and self-spinning motions are identified and explained, its results show that they have a significant impact on the system dynamics.

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A referenced nodal coordinate formulation

Ren

Yang

2020

Multibody Syst Dyn

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Electric Solar Wind Sail: Deployment, Long-Term Dynamics, and Control Hardware Requirements

Cited by 5 publications

References 6 publications

The Heliopause Electrostatic Rapid Transit System (HERTS) - Design, Trades, and Analyses Performed in a Two Year NASA Investigation of Electric Sail Propulsion Systems

The Heliopause Electrostatic Rapid Transit System (HERTS) - Design, Trades, and Analyses Performed in a Two Year NASA Investigation of Electric Sail Propulsion Systems

Coupled Orbital-Attitude Dynamics Of Flexible Electric Solar Wind Sail

A referenced nodal coordinate formulation

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