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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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Deli Jiang, Xuegeng Chen, Limin Yan, Jinhao Zhang, Tao Wu and Xuanhe Fu
Compared with the conventional horizontal conveyor-chain-type plastic-film-picking device, the longitudinal nail-tooth-chain-plate-type plastic-film-picking device developed by our team in the early stage has little tearing effect on the mulching film, a...
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Wendong Zhong, Xuan Zhao, Fei Liu, Hongbin Bai, Wenxue Dong, Hengtong Hu and Xiang Kong
This paper proposes a solution to the problem of tight population in the filling area of traditional air suction seed metering devices during quinoa sowing, which leads to inaccurate adsorption. The proposed method disperses the population into a stable ...
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Weiwei Sun, Yue Liu, Qi An, Shouqing Huang and Fangyong Li
Multilayer insulation (MLI) components are important parts of spacecraft, in which thin films are the core elements. The film thicknesses are generally small, between 10 and 30 µm, to reduce the weight of the spacecraft. During the launch of a spacecraft...
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Xindan Qiao, Dequan Liu, Xiaolei Wang, Wang Li, Jiawei Wang and Decong Zheng
This article focuses on the low accuracy, poor stability, and other shortcomings of the traditional outer-groove buckwheat seed-metering wheel. A wheel-type large-ridge double-row seed-metering device with inner seed-filling holes was designed. The seed-...
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Shining Lyu, Youshan Gao, Aihong Wang and Yiming Hu
In this research, a multi-scale representative volume element method is introduced that combines the temperature and stress fields to analyze the force field distribution around microcracks in low-carbon steel using a combination of molecular dynamics an...
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Qingyu Zhu, Qingkai Han, Jinguo Liu and Changshuai Yu
In this paper, a finite element model updating (FEMU) method is proposed based on the response surface model (RSM) and genetic algorithm (GA) to establish a high-precision finite element (FE) model of space station scientific experiment racks. First, the...
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Jianfei Liu, Ping Jiang, Jun Chen, Xiaocong Zhang, Minzi Xu, Defan Huang and Yixin Shi
This study aimed to design a counter-rotating dual-axis spiral ditcher to address the problems of the lack of ditching models, low ditching quality, and high power consumption in ditching operations in hilly and mountainous orchards. By establishing a di...
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Pouria Amouzadrad, Sarat Chandra Mohapatra and Carlos Guedes Soares
An analytical model of a current load?s interaction with a moored floating flexible structure based on the Timoshenko?Mindlin beam theory is developed under the assumption of small-amplitude wave theory and the structural response. Theoretical solutions ...
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Gaowei Xu, Huimin Fang, Yumin Song and Wensheng Du
A variable velocity parallel four-bar cavitating mechanism for well-cellar can form the well-cellar cavitation which suits for well-cellar transplanting under a continuous operation. In order to improve the cavitating quality, this paper analyzed the str...
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