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Machines, 2023 Planetary gear systems have many advantages over other gear systems. Previous studies on its dynamic characteristics mostly used Earth as the reference system, which is inconsistent with the actual working conditions of many planetary gear systems, such ...
Bingwei Gao, Yongkang Wang, Guangbin Yu
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International Astronomical Union Colloquium, 1999 AbstractThe past decade brought direct evidence of the previously surmised exoplanetary systems. A variety of planetary system types exist those around pulsars, around both young and old main-sequence stars (as evidenced by planetesimal disks of the Beta Pictoris-type), and the mature giant exoplanets found in radial velocity surveys.
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Quantifying the Similarity of Planetary System Architectures [PDF]
A&A 651, A61 (2021), 2021 The planetary systems detected so far already exhibit a wide diversity of architectures, and various methods are proposed to study quantitatively this diversity. Straightforward ways to quantify the difference between two systems and more generally, two sets of multiplanetary systems, are useful tools in the study of this diversity.
arxiv +1 more source
Planetary mass function and planetary systems [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 7 pages, MNRAS ...
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Machines, 2023 Mesh phasing has a dramatic impact on the static and dynamic behaviours of planetary gear systems. This research investigates the coupled phase-tuning mechanism of two-stage planetary gear systems and the corresponding relationship with the coupled ...
Pengfei Yan +4 more
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Search for Nanosecond Near-infrared Transients around 1280 Celestial Objects [PDF]
, 2019 Stars and planetary ...
Barrett, Colin T +18 more
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Planetary systems in star clusters [PDF]
Proceedings of the International Astronomical Union, 2014 AbstractIn the solar neighborhood, where the typical relaxation timescale is larger than the cosmic age, at least 10% to 15% of Sun-like stars have planetary systems with Jupiter-mass planets. In contrast, dense star clusters, characterized by frequent close encounters, have been found to host very few planets.
Kouwenhoven, M.B.N. +3 more
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Jixie chuandong, 2023 Planetary herringbone gears are increasingly used in the high-power marine transmission system. In order to meet the noise requirements of transmission system of modern ships, the vibration reduction design of planetary herringbone gear transmission ...
Zhao Tianyu +3 more
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Metals, 2022 The reliability of planetary equipment determines the economic affordability and service safety, to a large extent, for a helicopter transmission system.
Ming Li, Yuan Luo, Liyang Xie
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Design and Research Co-Simulation Platform of Navigation and Dynamics on Planetary Rovers
Xibei Gongye Daxue Xuebao, 2019 The overall design idea of simulation platform of the planetary rover coupling navigation and dynamics is proposed to address the dilemma faced in the design of a navigation control system for Mars and other planetary exploration tasks.
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