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Pengtao Shi, Feng Liu, Yingsong Gu and Zhichun Yang
A flight test platform is designed to conduct an experimental study on the body freedom flutter of a BWB flying wing, and a flight test is performed by using the proposed platform. A finite element model of structural dynamics is built, and unsteady aero...
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Qiang Fu, Meixiang Gu, Jie Yuan and Yifeng Lin
In recent years, the high development of high-speed railway lines cross through areas with poor geological conditions, such as soft soil, offshore and low-lying marsh areas, resulting geotechnical problems, such as large settlements and reduction of bear...
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Domenico Di Leone, Francesco Lo Balbo, Alessandro De Gaspari and Sergio Ricci
This article presents a modal correlation and update carried out on an aeroelastic wind tunnel demonstrator representing a conventional passenger transport aircraft. The aim of this work is the setup of a corresponding numerical model that is able to cap...
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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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Yadong Gao, Xinyu Yu, Likun Chen and Dawei Huang
Accurately identifying the peak value of impact load acting on the helicopter structure during weapon launch is of great significance to the design and finalization of weapon pylons. Firstly, a method of standardized preprocessing load signal is proposed...
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Heejang Moon, Seongjoo Han, Youngjun You and Minchan Kwon
This paper presents an attempt to use the hybrid rocket for marine applications with a 500 N class hybrid motor. A 5-port high density polyethylene (HDPE) fuel grain was used as a test-bed for the preliminary assessment of the underwater boosting device....
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Bang-Hyun Jo, Dae-Sung Jang, Jai-Hyuk Hwang and Yong-Hoon Choi
The landing gear of an aircraft serves to mitigate the vibration and impact forces transmitted from the ground to the fuselage. This paper addresses magneto-rheological (MR) damper landing gear, which provides high shock absorption efficiency and excelle...
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Luca Maria Puzzilli, Giovanni Bongiovanni, Paolo Clemente, Vincenzo Di Fiore and Vladimiro Verrubbi
The vibration effects on the Torre della Moletta and the ruins of the Circus Maximus in Rome are analyzed in the framework of a preservation effort of this archaeological area. Thanks to its exceptional size, the Circus hosts many social events with larg...
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Ziping Han, Guofeng Zeng and Feng Ye
As a novel form of railway transportation, maglev transportation has the advantages of a better curve negotiation ability and grade ability and lower noise and vibration than traditional urban wheel?rail transportation. Thus, it is suitable for use in ur...
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Ye He, Huaiyu He, Ziheng Liu, Fei Su, Jiannan Li, Yanan Zhang, Rongji Li, Xinyu Huang, Xuhang Zhang, Chao Lu, Shengyuan Jiang, Junyue Tang and Ranran Liu
The nitrogen isotopic compositions of lunar soil have important implications for the sources of lunar volatiles and even the evolution of the moon. At present, the research on the lunar nitrogen isotopic compositions is mainly based on the lunar meteorit...
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Touraj Farsadi, Majid Ahmadi, Melin Sahin, Hamed Haddad Khodaparast, Altan Kayran and Michael I. Friswell
In the field of aerospace engineering, the design and manufacturing of high aspect ratio composite wings has become a focal point of innovation and efficiency. These long, slender wings, constructed with advanced materials such as carbon fiber and employ...
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Fan Yang, Yuefeng Du, Wei Li, Zhen Li, Enrong Mao and Zhongxiang Zhu
Large high-clearance sprayers are widely used in the field of plant protection due to their high work efficiency. Influenced by the characteristics of a large ground clearance, fast driving speed and constantly changing sprung mass, how to solve the cont...
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Dong Dai, Du Chen, Shumao Wang, Song Li, Xu Mao, Bin Zhang, Zhenyu Wang and Zheng Ma
Effective indoor testing on a four-poster rig of agricultural machinery should mimic the real-world environment while the machinery is in farming and transportation. The emerging load spectrum extrapolation and compilation are capable of speeding up the ...
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Maurizio Arena, Antonio Chiariello, Martina Castaldo and Luigi Di Palma
One of the crucial issues affecting the structural safety of propeller vehicles is the propeller tonal excitation and related vibrations. Propeller rotation during flight generates vibrating sources depending upon its rotational angular velocity, number ...
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Benjamin Edwards, Nadine Staudenmaier, Carlo Cauzzi and Stefan Wiemer
A method is described for the prediction of site-specific surface ground motion due to induced earthquakes occurring in predictable and well-defined source zones. The method is based on empirical Green?s functions (EGFs), determined using micro-earthquak...
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