Results 51 to 60 of about 383,072 (432)
Study on thermal analysis simulation and test of propellant refueling process for optical module
Xibei Gongye Daxue XuebaoPropellant refueling is important for long-term operation of the optical module in orbit. However, its thermal environment is harsher than on previous missions. Therefore, thermal control of the entire process is required.
LU Wei +4 more
doaj +1 more source
MATEC Web of Conferences, 2016 In order to implement spacecraft assembly based on MBD, this article proposes a method to construct data-package automatically based on 3D model. First, an Assembly Digital Mock-up (ADMU) is constructed.
Wan Bi Le, Chen Chang Yu, He Wen Xing
doaj +1 more source
A charging model for three-axis stabilized spacecraft [PDF]
, 1977 A charging model was developed for geosynchronous, three-axis stabilized spacecraft when under the influence of a geomagnetic substorm. The differential charging potentials between the thermally coated or blanketed outer surfaces and metallic structure ...
Green, T., Ling, D., Massaro, M. J.
core +1 more source
Quasi‐Static Compression Response and Energy Absorption of CNTF/EP Origami Thin‐Walled Tubes
Advanced Materials Interfaces, EarlyView.This research innovatively uses CNTF/EP composite material to fabricate origami thin‐walled tubes, investigating their quasi‐static compression deformation modes and performance. It examines the effects of introducing secondary creases on deformation modes and the energy absorption metrics of the thin‐walled tubes.
Bowen Zhang +5 more
wiley +1 more source
Machine Learning Based Relative Orbit Transfer for Swarm Spacecraft Motion Planning [PDF]
arXiv, 2022 In this paper we describe a machine learning based framework for spacecraft swarm trajectory planning. In particular, we focus on coordinating motions of multi-spacecraft in formation flying through passive relative orbit(PRO) transfers. Accounting for spacecraft dynamics while avoiding collisions between the agents makes spacecraft swarm trajectory ...
arxiv
MATEC Web of Conferences, 2016 In order to implement spacecraft assembly based on MBD, this article proposes a method of structural process design based on 3D model. First, an Assembly Digital Mock-up (ADMU) is constructed.
Wan Bi Le, He Wen Xing, Chen Chang Yu
doaj +1 more source
Sheath ionization model of beam emissions from large spacecraft [PDF]
, 1985 An analytical model of the charging of a spacecraft emitting electron and ion beams has been applied to the case of large spacecraft. In this model, ionization occurs in the sheath due to the return current.
Bhavnani, K. H. +3 more
core +1 more source
Advanced Photonics Research, EarlyView.An enhanced homogenization method for periodic lattices, applicable to any asymmetrical multipart structures, is proposed. This method simplifies intricate gratings into slab waveguides, predicts guided‐mode resonances and bound states in the continuum, without relying on numerical methods.
Atefe Taheri, Mehrdad Shokooh‐Saremi
wiley +1 more source
Method and apparatus for neutralizing potentials induced on spacecraft surfaces [PDF]
, 1976 A potential induced on the surface of an orbiting spacecraft is neutralized to the potential of a plasma through which the spacecraft is traveling by directing charged particles into the plasma from the spacecraft surface. The induced potential occurs in
Hunter, R. E.
core +1 more source
Systems design of a hybrid sail pole-sitter [PDF]
, 2011 This paper presents the preliminary systems design of a pole-sitter. This is a spacecraft that hovers over an Earth pole, creating a platform for full hemispheric observation of the polar regions, as well as direct-link telecommunications. To provide the
Baig +21 more
core +1 more source