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Kiho Nishihara, Kei-ichi Okuyama, Rafael Rodriguez and Isai Fajardo
In this study, we focus on 3D-printed PEEK/CFRTP (Carbon-Fiber-Reinforced Thermoplastic) and PEEK (Polyether Ether Ketone) materials as new space materials. In space, there are intense ultraviolet (UV) rays that are weakened by the atmosphere on Earth, s...
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Changkun Yu, Zhigang Wu and Chao Yang
Slender vehicles often encounter significant aeroservoelastic challenges due to their low elastic mode frequencies and wide servo control system bandwidths. Traditional analysis methods have limitations, including low modeling accuracy for real vehicles ...
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Laura Marcelli
The telescope Mini-EUSO has been observing, since 2019, the Earth in the ultraviolet band (290?430 nm) through a nadir-facing UV-transparent window in the Russian Zvezda module of the International Space Station. The instrument has a square field of view...
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Murat Millidere, Ferhat Akgül, Kemal Leblebicioglu and James F. Whidborne
For developing high-fidelity flight simulations, an accurate and complete representation of the aerodynamic characteristics of the aircraft is necessary. To obtain a realistic aerodynamic database, system identification methods can be used to describe th...
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Jianfeng Zhu, Guochen Huang, Maoguang Xu, Ming Liu, Bo Diao and Po Li
Combined with the development trend of high speed generators and the high voltage of DC microgrids in high-power series hybrid aero propulsion system, a set of hybrid systems with a power of 200 kW, voltage of 540 V, and speed of 21,000 r/min is establis...
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Ge Wang, Chengke Li, Weiqiang Pu, Bocheng Zhou, Haiwei Yang and Zenan Yang
A solid rocket motor (SRM) with a high aspect ratio that performs normally during ground tests may experience instability during flight. To address this issue, this study employs the pulse triggering method and the numerical approach of two-way fluid?str...
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Zahra Gharibreza, Mahmoud Ghazavi and M. Hesham El Naggar
Unsaturated soil covers a significant part of the world, and studying the behavior of deep foundations in this medium is an important step in increasing accuracy and economic efficiency in geotechnical studies. This paper presents an analytical solution ...
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Changxi Liu, Jun Hu, Zhaonan Yu, Yufei Li, Shengxue Zhao, Qingda Li and Wei Zhang
A fast spraying speed, wide working area, and easy operation are the operational advantages of high-clearance boom sprayers. To address the issue of spray boom mechanical vibration affecting the spraying effect, a double-link trapezoidal boom suspension ...
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Weijian Liu, Shan Zeng and Xuegeng Chen
To promote the germination of rice panicles during the regeneration season, it is necessary to ensure a stubble height of 300?450 mm when mechanically harvesting the first-season rice. However, due to variations in the depth of the paddy soil and fluctua...
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Jin-Hyo Kim and Sang-Min Sung
Unmanned aerial vehicle (UAV) photogrammetry is an emerging means of acquiring high-precision rapid spatial information and data because it is cost-effective and highly efficient. However, securing uniform quality in the results of UAV photogrammetry is ...
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