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Chuanxing Du, Weiquan Fang, Dianlei Han, Xuegeng Chen and Xinzhong Wang
In order to reduce ground drop loss during mechanical pepper picking and improve the net recovery rate, a drum snap finger picking device was designed. The picking device is mainly composed of a picking drum and auxiliary picking components; the picking ...
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Fei Guo and Jihong Ye
In order to verify the accuracy and applicability of the discrete element method (DEM) in dealing with geometrically large deformations of continuous plate structures, both a single-parameter analysis and an orthogonal design method were adopted to analy...
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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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Pingshan Chen, Weiqing Lyu, Xiaocong Liang, Jiangxu Deng, Chong Li and Yong Yuan
To optimize the design of stone columns composite foundation for liquefiable ground improvement in the Tibar Bay Port Project, a 3D Finite Element (FE) analysis is implemented on the earthquake response and liquefaction mitigation effect. Nine improvemen...
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Rong Bao, Yongdong Li, Hongguang Wang and Chunliang Liu
The current design period for various backward wave oscillators (BWOs) is still at least several months. How to find the best structure parameters with an efficient and stable optimization method is a problem facing researchers in both scientific researc...
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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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Qiaorui Si, Rong Lu, Chunhao Shen, Shuijing Xia, Guochen Sheng and Jianping Yuan
Improving the efficiency of fluid machinery is an eternal topic, and the development of computational fluid dynamics (CFD) technology provides an opportunity to achieve optimal design in limited time. A multi-objective design process based on CFD and an ...
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Yalina Ma, Qian Sheng, Guimin Zhang and Zhen Cui
For water transmission tunnels constructed in high-risk seismic regions of western China, active faults pose threats of serious ruptures to the tunnels. To overcome this issue, a 3D discrete-continuum coupling approach is introduced into the study. By th...
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Gen Yang, Tiejun Zhou, Mingxi Peng, Zhigang Wang and Dachuan Wang
Pedestrian evacuation is an important measure to ensure disaster safety in central retail districts, the efficiency of which is affected by the synergy of road network planning indices. This paper established the typical forms of central retail district ...
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Taichao Wang, Xin Li, Fengming Liu, Lijun Zhang, Haojun Xie and Yuting Bai
The discrete fracture model (DFM) and the embedded discrete fracture model (EDFM) are both the most widely used methods to simulate fractured wells? production. In general, DFM represents fractures using an unstructured grid, and EDFM represents fracture...
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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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Duo Teng, Yatian Li, Hu Yang, Zhiqiang Wei and Yaan Li
Underwater acoustic imaging employs a special form of array which includes numerous transducer elements to achieve beamforming. Although a large-scale array can bring high imaging resolution, it will also cause difficulties in hardware complexity and rea...
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Yunlai Zhou, Longlong He, Fei Yang and Jingmang Xu
Metal sheets have good performance and have been widely used. Different kinds of defects can be generated during the preparation and service of metal plates, which will cause the structural performance of the metal plates to decline, thus requiring struc...
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Vlad Andrei Ciubotariu, Maria Crina Radu, Eugen Herghelegiu, Valentin Zichil, Cosmin Constantin Grigoras and Elena Nechita
Even though they initially appeared as a method of using waste from other production processes, tailored welded blanks (TWB) presented several advantages by combining materials with different characteristics. On the one hand, this study focuses on minimi...
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Zhengya Qi, Xinhao Ding, Wenwen Yang and Jianxin Chen
In this paper, a compact broadband planar inverted-F antenna (PIFA) with dual-resonant modes (TM1/2,2 and TM3/2,0) is proposed for 5G applications. By loading a pair of horizontal slots on the patch, the TM3/2,0 mode can be shifted downward and combined ...
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Kun Wu, Min Zhang, Gang Wang, Xu Chen and Jun Wu
In order to improve the accuracy and efficiency of the methods that are used for the detection of impurities in and the breakage rate of harvested corn grains, we propose a classification and identification method using a feature threshold and a backprop...
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Pham Ba Thao, Duong Cong Truyen and Nguyen Minh Phu
In this paper, a solar air collector duct equipped with baffles on a back plate was numerically investigated. The Reynolds number (Re) was varied from 5000 to 20,000, the angle baffle (a) from 30° to 120°, the baffle spacing ratio (Pr) from 2 to 8, and t...
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Peiyin Yuan, Pingyi Wang and Yu Zhao
Large-scale instability of a landslide body, sliding down a bank slope and entering water at a high speed, arouses landslide surges. Taking the water entry point as a source point, they spread rapidly to surrounding areas, increasing the danger risk of v...
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Xiao Zhou, Chengyou Wang, Zhi Zhang and Qiming Fu
Based on a deep understanding of all-phase digital filter (APDF) design and all-phase biorthogonal transform (APBT), this paper will further study the windowed all-phase digital filter (WAPDF) and windowed all-phase biorthogonal transform (WAPBT), discus...
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Chathakudath Sukumaran Sumesh, Ajith Ramesh
Pág. 196 - 202
In this paper, the influence of machining parameters, Cutting Speed, Feed Rate, and Depth of cut, on surface finish during dry orthogonal turning of Al 6061 ? T6 alloy, is studied using the response surface methodology (RSM). This paper proposes a unique...
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