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Andreas Wurzinger, Florian Kraxberger, Paul Maurerlehner, Bernhard Mayr-Mittermüller, Peter Rucz, Harald Sima, Manfred Kaltenbacher and Stefan Schoder
Acoustic emissions play a major role in the usability of many product categories. Therefore, mitigating the emitted sound directly at the source is paramount to improve usability and customer satisfaction. To reliably predict acoustic emissions, numerica...
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Kang Zhang, Ruize Ma, Tao Geng, Jiannan Yang and Yongjun Gong
The leakage of subsea oil and gas pipelines can have adverse impacts on production progress and the ecological environment. Investigating the sound source and near-field sound propagation of pipeline leaks is essential for understanding the acoustic char...
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Iurii Vakaliuk, Silke Scheerer and Manfred Curbach
Concrete is the most widely used building material today. The enormous amount used goes hand in hand with high material consumption and CO2 emissions. Thus, building with concrete must be improved, becoming part of the solution on the way to climate-frie...
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Ri Wang, Fengfei Lou, Bin Qi, Rong A, Yuanye Zhou and Sujun Dong
In this paper, aimed at the problem of large temperature gradient thermal testing with the typical sharp wedge leading edge structure of a hypersonic vehicle, a subsonic high-temperature combustion gas heating (SHCH) test device is used to conduct a seri...
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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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Rui Zhou, Weicheng Gao, Wei Liu and Jianxun Xu
With advantages in efficiency and convenience, analytical models using experimental inputs to predict the mechanical properties of plain-woven fabric (PWF) composites are reliable in guaranteeing the composites? engineering applications. Considering the ...
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Nurlan Zhangabay, Ulanbator Suleimenov, Akmaral Utelbayeva, Alexandr Kolesnikov, Kanat Baibolov, Kuanysh Imanaliyev, Arman Moldagaliyev, Galymzhan Karshyga, Bolat Duissenbekov, Roman Fediuk and Mugahed Amran
In the study, experimental and theoretical studies were carried out to assess the influence of the vertical mounting joint zone of the tank on the stress-strain state of the defect zone. Thus, experimental tests of models of a tank wall fragment with an ...
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Adriana Brandis, Ivan Kraus and Simon Petrovcic
Numerical modelling of the soil in seismic design of structures is always a daunting task. The goal of this article is to develop a simplistic numerical modelling technique for shallow founded buildings on compliant soils. An existing large-scale experim...
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Weixi Zhang, Wouter De Corte, Xian Liu and Luc Taerwe
(1) In quasi-rectangular tunnels, a new type of special-section shield tunnels, the effect of nonlinear joint behavior is much more important than in circular tunnels. (2) An iterative nonlinear spring-beam model for the prediction of lining deformations...
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Serhii Pozdieiev,Kostiantyn Myhalenko,Vitalii Nuianzin,Oleh Zemlianskyi,Tetiana Kostenko
Pág. 32 - 39
Explosive concentrations of various substances can accumulate inside industrial premises. In the presence of a sufficient amount of oxygen and an ignition source, such a situation could lead to explosion that may result in the destruction of building str...
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Cong Sun, Chunyu Guo, Chao Wang, Lianzhou Wang and Jianfeng Lin
The interactions between the main hull and demi-hull of trimarans have been arousing increasing attention, and detailed circumferential flow fields greatly influence trimaran research. In this research, the unsteady wake flow field of a trimaran was obta...
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Constantin Tanasa, Alin Bosioc, Sebastian Muntean and Romeo Susan-Resiga
In this paper, we introduce a novel passive control method to mitigate the unsteadiness effects associated to the swirling flows with self-induced instabilities. The control method involves a progressive throttling cross-section flow at the outlet of the...
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Sumei Liu, Hanshan Ding, Luc Taerwe and Wouter De Corte
Curved composite girder bridges with corrugated steel webs (CSWs) have already been constructed around the world. However, limited work has been done on their shear behavior. In this paper, the corrugated steel web (CSW) in horizontally curved girders (H...
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Sauro Manenti, Andrea Amicarelli and Sara Todeschini
This work illustrated an application of the FOSS code SPHERA v.8.0 (RSE SpA, Milano, Italy) to the simulation of landslide hazard at the slope of a water basin. SPHERA is based on the weakly compressible SPH method (WCSPH) and holds a mixture model, cons...
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Elliott Kellner and Jason A. Hubbart
A representative watershed was instrumented with five gauging sites (n = 5), partitioning the catchment into five nested-scale sub-watersheds. Four physiochemical variables were monitored: water temperature, pH, total dissolved solids (TDS), and dissolve...
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Valerio Lo Brano, Giuseppina Ciulla, Antonio Piacentino and Fabio Cardona
The exploitation of renewable energy sources and specifically photovoltaic (PV) devices have been showing significant growth; however, for a more effective development of this technology it is essential to have higher energy conversion performances. PV p...
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O. V. Radkevych,S. O. Yakovliev,L. M. Bondarenko,O. O. Stepanenko
Pág. 67 - 71
To determine the ratio of flange friction, the article proposes an experimental and analytical method, combining the analytical value for the rolling friction ratio and its experimental value obtained according to the law of oscillations damping in dry f...
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Yeshou Xu, Qi He, Ying-Qing Guo, Xing-Huai Huang, Yao-Rong Dong, Zhong-Wei Hu and Jinkoo Kim
Viscoelastic dampers are conventional passive vibration control devices with excellent energy dissipation performance. The fractional derivative has a simple form and high accuracy in the modelling of viscoelastic materials/dampers. The internal variable...
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Dann De la Torre, Veneranda Garcés-Chávez, Juan De Dios Sanchez-Lopez, Kevin A. O?Donnell, Juan Ivan Nieto-Hipólito and Rosario Isidro Yocupicio-Gaxiola
In this work, we report an optofluidic system for manipulation of orientation of zeolite crystals near the bottom of a rectangular cross-sectional, straight, quartz microfluidic channel. Manipulation is accomplished by using two computer-controlled syrin...
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Fei Xue, Yunlong Zhang, Ning Cao and Liugang Li
In this paper, unsteady motion tests of a lateral jet adjusting an air vehicle?s attitude are carried out. Curves of pitch moment amplification factors (KM) for a lateral jet versus angle of attack (a) are obtained using a wind tunnel free-flight test te...
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