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Qikai Zhuang, Peijie Yue, Kai Li, Xin Guo and Xiaoquan Cheng
Coal-based carbon foam (CCF) has been widely used in the hypersonic vehicles? thermal protection system (TPS) due to its good thermal insulation and mechanical properties. In addition, CCF can absorb large quantities of energy when crushed so that the CC...
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Navya Gara, Velmurugan Ramachandran and Jayaganthan Rengaswamy
The present work investigates the impact behaviour of Al 2024-T3 alloy using FEM analysis performed through LS DYNA software. Johnson?Cookvisco-plastic model is used to study the ballistic impact resistance of target Al alloy impacted by a rigid steel cy...
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Yaxing Cai, Yujun Chen, Yazhong Luo and Xinglong Wang
For the rigid impact and flexible impact in space operation tasks, impact dynamic models between two objects are established in this paper, laying the model foundation for controlling or suppressing the impact. For the capture task between a grapple shaf...
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Mingmin Chen, Xinbo Huang, Zhaokun Wang, Hongtao Zheng and Fuquan Deng
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Yifan Cao, Yangda Chen, Mingwen Shi, Chuanzhen Li, Weijun Wu, Yapeng Li, Xuxin Guo and Xianpeng Sun
The high energy consumption CEA building brings challenges to the management of the energy system. An accurate energy consumption prediction model is necessary. Although there are various prediction methods, the prediction method for the particularity of...
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Ana Pavlovic and Giangiacomo Minak
The study of dynamic events such as impact and hydroelastic slamming is of great importance in determining the structural integrity of naval or maritime structures, particularly those made of composite materials. This topic has been investigated by numer...
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Yuhang Shen, Li Lin, Pengxiao Tang and Tianli Xu
The net shell is a widely utilized large-span space structure known for its aesthetically pleasing design and uniform load distribution, as well as serving as a prominent architectural landmark. In recent years, the impact resistance research of mesh and...
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Xintian Ma, Xiangyi Wang, Yingbin He, Yan Zha, Huicong Chen and Shengnan Han
Generic parameter calibration for crop growth models is a very important step in model use. However, studies of the effect of sample size and sampling methods on the calibration and validation of genotypic parameters have seldom been conducted. Scientist...
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Mingjin Xin, Zhiwen Jiang, Yuqiu Song, Hongguang Cui, Aiju Kong, Bowen Chi and Renbao Shan
The application of fertilizer is necessary for the growth and yield of crops, especially for paddy rice. Precision application is important for the fertilizer utilization rate and sustainable development of agriculture. However, the crushing of fertilize...
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Howard Peng, Jirat Bhanpato, Ameya Behere and Dimitri N. Mavris
Aviation noise remains a key barrier to the sustainable growth of commercial aviation. The advent of emerging technologies, such as urban air mobility, and the renewed interest in commercial supersonic transport aircraft, has only further raised concerns...
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Hui Wang, Shunyuan Mao, Xiaomao Wu and Huiling Zhang
In this paper, the eigenfunction expansion method combined with local contact models are presented to analyze the repeated impact behaviors between the sphere and the beam. The simulations are verified with the experimental results of a simply-supported ...
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Lucia Kohnová and Nikola Salajová
Although the concept of Industry 4.0 is newer, more and more companies are responding to this concept and incorporating it into their business models. Industry 4.0 arose as a result of the development of new technologies based on automation, through whic...
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Tomasz Goetzendorf-Grabowski and Agnieszka Kwiek
The article presents a study on the influence of aerodynamic model fidelity on dynamic characteristics. The Simulation and Dynamic Stability Analysis (SDSA) package was used to calculate the dynamic characteristics, using both eigenvalues (linearized mod...
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Fuxin Zheng, Yanguo Teng, Yuanzheng Zhai, Jingdan Hu, Junfeng Dou and Rui Zuo
Since the 1990s, sandstone-type uranium in the northern basin of China has become the main target for mining. Uranium mining can cause a series of impacts on the environment. A conceptual model of the geo-environment for sandstone-type uranium in norther...
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Yinsheng Xu, Yanjie Bi, Jing Zhao and Jingjing Duan
What exactly is the contribution of the South-to-North Water Transfer Project (SNWTP)? This is a subject of much debate. There are concerns about the possible effects on the macroeconomy. Most previous studies have tried to answer this question. In order...
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Jianhong Chen, Hongcai Ma, Shan Yang, Zhiyong Zhou, Jianhui Huang and Licheng Chen
The rapid development of urbanization has led to increasing uncertainties related to urban safety risks, which has brought certain challenges to the sustainable development of cities. The concept of urban resilience has found a new way to improve the abi...
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Birgitta Hörnschemeyer, Malte Henrichs, Ulrich Dittmer and Mathias Uhl
Blue?green infrastructures (BGI) play an important role in addressing contemporary challenges posed by urbanization, climate change, and demographic shifts. This study focuses on the parameterization of BGI within hydrological models, specifically emphas...
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Kanako Toyosada and Li Xu
Electric bidets have become widespread in Japan and are now rapidly being installed across the rest of Asia, the United States, and the European Union. However, the impact on water infrastructure has not yet been sufficiently evaluated. Using Japan as an...
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Alfin Hikmaturokhman, Kalamullah Ramli, Muhammad Suryanegara, Anak Agung Putri Ratna, Ibrahim Kholilul Rohman and Moinul Zaber
The Indonesian spectrum usage fees?the so-called Biaya Hak Pengguna Frekuensi Izin Pita Frekuensi Radio (BHP IPFR)?are currently calculated using a formula determined by the three following main parameters: the frequency band, the country?s economic para...
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Muhammad Yousaf, Chuwei Zhou, Yu Yang and Li Wang
Impact indentation is believed to be an effective indication of low-velocity impact (LVI) damage for polymer matrix composites. However, it has been discovered that an indentation can partially rebound over time. Impact indentation and its rebound behavi...
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