A review of Smart Dust architecture, dynamics, and mission applications

Niccolai, Lorenzo; Bassetto, Marco; Quarta, Alessandro A.; Mengali, Giovanni

doi:10.1016/j.paerosci.2019.01.003

Cited by 58 publications

(32 citation statements)

References 85 publications

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“…The study of the LHG could reveal critical information about the dust particles near the surface and at low altitudes-information which could be important for future human and robotic missions since the regolith dust is a significant risk factor in the lunar environment [13][14][15][16][17][18]. A low lunar orbit is the most promising candidate for studying the LHG, from where it is also possible, in principle, to extend the scientific objectives by releasing femto-satellites-such as smart dust from the satellite [19]. The present work focuses on the trajectory analysis of the Horyu mission: the transfer trajectory, in particular the effect that the solar gravity gradient has on it, and the stabilization of the orbit around the Moon.…”

Section: Introductionmentioning

confidence: 99%

Trajectory optimization for the Horyu-VI international lunar mission

et al. 2021

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The Horyu-VI nano-satellite is an international lunar mission with the purpose of studying the lunar horizon glow (LHG)—a still unclear phenomenon caused by electrostatically charged lunar dust particles. This study analyzes the mission trajectory with the hypothesis that it is launched as a secondary payload of the NASA ARTEMIS-II mission. In particular, the effect of the solar gravity gradient is studied; in fact, depending on the starting relative position of the Moon, the Earth, and the Sun, the solar gradient acts differently on the trajectory—changing it significantly. Therefore, the transfer and lunar capture problem is solved in several cases with the initial Sun-Earth-Moon angle as the key parameter. Furthermore, the inclination with respect to the Moon at capture is constrained to be equatorial. Finally, the problem of stabilization and circularization of the lunar orbit is addressed in a specific case, providing an estimate of the total propellant cost to reach the final orbit around the Moon.

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Section: Introductionmentioning

confidence: 99%

Trajectory optimization for the Horyu-VI international lunar mission

et al. 2021

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“…In recent years, wireless sensor networks (WSNs) have been widely applied in military reconnaissance, [1,2] environmental monitoring, [3][4][5] and industrial monitoring [6,7] for distributed sensing and information fusion. In such an unattended environment, an energy module composed of photovoltaic devices and Li batteries is the most popular solution for long-term operation of WSN nodes in all the day and night.…”

Section: Introductionmentioning

confidence: 99%

An Adaptive Energy Management Strategy for Simultaneous Long Life and High Wake‐Up Success Rate of Wireless Sensor Network Nodes

Dai

Zhang

Li³

et al. 2021

Energy Tech

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For wireless sensor network (WSN) nodes with an extremely tight energy supply, herein, an adaptive energy management strategy based on a hybrid energy system composed of a photovoltaic device, Li battery, and supercapacitor is proposed. According to information fusion of the irradiation intensity, load consumption and the state of charge of the battery and supercapacitor, the estimation of energy shortage caused by future wake‐up pulses is carried out. Based on this, the charge/predischarge power of the Li battery is adaptively adjusted. Simulations validate that much lower Li battery capacity loss than the previous strategies is achieved without sacrificing the wake‐up success rate, thereby extending the life of the hybrid energy module in a WSN node by an order of magnitude. In addition, the proposed strategy has excellent robustness in the double‐random environmental and working conditions including the irradiation intensity, driving event frequency, etc., and can always maintain excellent performance while these parameters are changing within a wide range. Therefore, an effective energy guarantee for long life and high wake‐up success rate of WSN nodes under double‐random environmental and working conditions is provided and the practical application of WSN nodes in such scenarios is promoted.

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“…This type of thrusters includes all the propellantless propulsion systems that provide an outward radial propulsive acceleration with a magnitude that scales as a certain power of the Sunspacecraft distance. Electric solar wind sails (E-sails) [33][34][35][36][37], magnetic sails (magsails) [38][39][40][41][42], solar sails [20][21][22], and smart dusts (SDs) [43,44] belong to this class of propulsion systems. Each of them exploits a peculiar form of energy coming from the Sun.…”

Section: Introductionmentioning

confidence: 99%

“…Another option for controlling the characteristic acceleration of a solar sail is to cover its reflective film with electrochromic materials [54], which can change their reflectivity coefficient through the application of an electrical voltage. The same strategy is commonly used for millimeter-scale solar sails and SDs [43,44]. Finally, the characteristic acceleration of a Magsail can be adjusted, in principle, by varying the electrical current flowing in its ring [40,41].…”

Section: Introductionmentioning

confidence: 99%

Spiral trajectories induced by radial thrust with applications to generalized sails

et al. 2020

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In this study, new analytical solutions to the equations of motion of a propelled spacecraft are investigated using a shape-based approach. There is an assumption that the spacecraft travels a two-dimensional spiral trajectory in which the orbital radius is proportional to an assigned power of the spacecraft angular coordinate. The exact solution to the equations of motion is obtained as a function of time in the case of a purely radial thrust, and the propulsive acceleration magnitude necessary for the spacecraft to track the prescribed spiral trajectory is found in a closed form. The analytical results are then specialized to the case of a generalized sail, that is, a propulsion system capable of providing an outward radial propulsive acceleration, the magnitude of which depends on a given power of the Sun-spacecraft distance. In particular, the conditions for an outward radial thrust and the required sail performance are quantified and thoroughly discussed. It is worth noting that these propulsion systems provide a purely radial thrust when their orientation is Sun-facing. This is an important advantage from an engineering point of view because, depending on the particular propulsion system, a Sun-facing attitude can be stable or obtainable in a passive way. A case study is finally presented, where the generalized sail is assumed to start the spiral trajectory from the Earth’s heliocentric orbit. The main outcome is that the required sail performance is in principle achievable on the basis of many results available in the literature.

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A review of Smart Dust architecture, dynamics, and mission applications

Cited by 58 publications

References 85 publications

Trajectory optimization for the Horyu-VI international lunar mission

Trajectory optimization for the Horyu-VI international lunar mission

An Adaptive Energy Management Strategy for Simultaneous Long Life and High Wake‐Up Success Rate of Wireless Sensor Network Nodes

Spiral trajectories induced by radial thrust with applications to generalized sails

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