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Kunpeng Tian, Jicheng Huang, Bin Zhang, Aimin Ji and Zhonghua Xu
In response to the unclear impact of header vibration on cutting performance (stalk cutting quality and cutting energy consumption) during field operations of industrial hemp harvesters, this study utilized a vibration recorder to collect information on ...
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Jingsheng Lu, Guangrong Jin, Dongliang Li, Deqing Liang, Yong He, Lingli Shi, Yiqun Zhang and Youming Xiong
Gas from natural gas hydrate (NGH) is priced competitively with gas prices. Most marine NGH is stored in low cementing strata, which easily cause sand production problems, restricting the commercial production and environmental safety of NGH?s developmen...
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Wenfeng Du, Jinchao Gu, Guilin Sheng, Guang Guo, Yongrun Zhao and Zhijian Liu
With the increasing utilization of bolted ball joint steel mesh structures in offshore floating platforms and deep-sea fish cages, the issue of seawater infiltrating the joints and members through the installation gaps of the bolted ball joint, leading t...
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Xiufei Wang, Kun Liu, Mingcai Xu and Hewei Liu
In this study, a common cruciform structure in ship hulls was designed and experimented with in order to analyze its deformation characteristics under planar collision and quasi-static loading. The mechanical parameters of the materials were determined b...
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Hewei Liu, Kun Liu, Xiufei Wang, Zhenguo Gao and Jiaxia Wang
This paper presents an experimental, numerical, and analytical study of a novel specimen subjected to local in-plane load, to investigate its crushing deformation and resistance. The specimen was designed and fabricated to simplify the cruciform structur...
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S. Saad-Eldeen and Yordan Garbatov
This study presents experimental and numerical analyses of compressive collapse tests of initially corroded steel-stiffened plates with multiple circular openings, which may be used as tank wash plates. The ultimate load-carrying capacity and the relevan...
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Xiaoxia Zheng, Bohan He, Yu Zou, Qiao Yang, Yupeng Cao, Zhiqiang Li and Yaokun Han
It is well-established that the honeycomb sandwich composite structures are easily prone to damage under low-energy impact. Consequently, it would lead to a dramatic decrease in structural load-bearing capacity and a threat to overall safety. Both experi...
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Mi Li and Jianjun He
The depth of electrodes inserted into the charge plays a vital role in controlling the submerged arc furnace. Therefore, we used ultrasound waves reflected from the electrode tip to estimate the depth of electrodes inserted into the charge. However, grap...
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Jinhua Xu, Shaohua Liu, Huaqiu Zhou, Rikai Zhang, Bo Wang, Yikang Xu and Wangping Qian
The vehicle-mounted transient electromagnetic method (VMTEM) has been proposed to detect tunnel internal defects in operational tunnels based on the ideal space state. However, the space environment of tunnel surrounding rock is different compared with c...
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Tingli Wang, Jian Huang, Hongyuan Fu, Ke Yu and Shan Yao
The quality of high-pressure die casting (HPDC) is largely determined by the process parameters. The objective is to study the influence of process parameters on melt filling and feeding capacity. The research is carried out by means of numerical simulat...
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Xiu Li, Hongbing Zhu, Zhenghao Fu, Peng Liu and Changhuang Xia
To explore the influence of the volume-to-surface area ratio (V/S) on the creep of ceramsite concrete beams, the creep performance of ceramsite concrete beams with different V/S was studied through a long-term deformation observation test, theoretical de...
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Lili Zhang, Jingyue Cheng, Fei Liu, Haolin Li, Zhuojun Dong, Xuemei Zhang, Kai Wang, Lei Tian, Haoru Liu, Jiangjun Wan and Congshan Tian
The Trombe wall (T-wall) system is one of the most effective systems for passive solar energy utilization technology, which is of great significance for the alleviation of the energy crisis and the protection of the environment. Taking as an example Tibe...
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Veronika Vala?ková and Jozef Melcer
The article is dedicated to a numerical and experimental analysis of the basic natural frequencies of a bridge structure. It presents the results obtained using the finite element method and the frequency response functions applied in two variants, using...
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Maitrik Shah, Beena Baloni, Salim Channiwala
Pág. 216 - 227
The design and off-design performance of a centrifugal pump largely depends on geomechanical parameters. This study aims at enhancing the performance by optimizing three geomechanical parameters of impeller-volute interactions. The present optimization i...
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Hairui Zhao, Yao Shi, Guang Pan and Qiaogao Huang
Aiming at the problem of high-speed entry of vehicles with a diameter of 200 mm, a numerical model of high-speed entry of vehicles is established based on the arbitrary Lagrange?Euler (ALE) algorithm, and the numerical simulation of high-speed entry of f...
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Jiaqi Chen, Jieyun Mao, Hongbo Shi and Xikun Wang
In order to study the characteristics of a bidirectional shaft tubular pump with S-type symmetric airfoil blades, a prototype model was designed, manufactured, and tested. The energy characteristics, cavitation characteristics, and runaway characteristic...
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Daipeng Lu, Wei Wang, Encai Bao, Shilin Wang, Xue Wu, Zongchun Bai and Yuxin Tang
The cutting device in the seedling grafting process was studied, which provided a reference for optimizing the structural parameters and working parameters of important shearing components in the seedling grafting line, thereby improving the performance ...
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Enjin Zhao, Lin Mu, Zhaoyang Hu, Xinqiang Wang, Junkai Sun and Zhiyong Zhang
Revetment elements and protective facilities on a breakwater can effectively weaken the impact of waves. In order to resist storm surges, there is a plan to build a breakwater on the northern shore of Meizhou Bay in Putian City, China. To better design i...
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Jie Zhang, He Guo, Yougang Tang and Yulong Li
With the increase of water depth, the design and use of the top-tensioned risers (TTR) are facing more and more challenges. This research presents the effect of top tension on dynamic behavior of deep-sea risers by means of numerical simulations and expe...
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Alexander Trunov,Zhan Byelozyorov
Pág. 38 - 50
Special features in the process of determining the coordinates of sound anomalies according to the sound series were considered. Sound anomalies have been shown to be a source of information about events, phenomena that are already occurring, or are thei...
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