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Dora-Virginia Igartúa,Karen Moreno,Silvia-Estela Monteoliva
Pág. e007
Aims of study: To characterize the wood of Acacia melanoxylon in relation to its potential use in the construction and furniture industry, here we determined the heartwood and sapwood content and distribution within the stem and analyzed their relationsh...
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Yan Chen, Chunxiang Gao and Wuli Chu
In order to prolong the service life of multistage axial compressors, it is increasingly important to study the influence of blade surface roughness on the compressor performance. In this paper, a five-stage axial compressor of a real aero-engine was sel...
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Nazaré Barata Mateus, Decio Barbin, Armando Conagin (Author)
Pág. 1537 - 1546
The center composite design is symmetrical, of second order, and constituted of two parts: the factorial 2k, with one or more central points, and the axial. The aim of this research has been to verify, through simulations, the design type in field experi...
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Shihao Zhou, Peifeng Lin, Wei Zhang and Zuchao Zhu
Flow separation is undesirable and lowers the efficiency of centrifugal impellers. In this study, the evolution characteristics of separated vortices in a centrifugal impeller are studied under the off-designed flow rate condition. Unsteady Reynolds-Aver...
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Lu Li, Meng Zang, Rongtang Zhang and Haijun Lu
Consolidated undrained triaxial shear tests were performed on undisturbed saturated structured clay at three unloading rates (0.1, 0.25, and 2.5 kPa/min) using a GDS triaxial system to determine the effects of different unloading rates and unloading stre...
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Yuanfeng Wang, Lei Pan, Weitao Niu, Kai Li and Kun Guo
A reasonable material hysteretic constitutive model has a significant influence on the seismic simulation results of structures. To better describe the hysteresis seismic performance of fiber-reinforced polymer (FRP)-constrained concrete, a new modified ...
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Yuanxing Zhao, Xuan Gong, Jianwen Wang, Liru Zhang and Yefei Bai
The dynamic yaw significantly affects the aerodynamic load distribution of wind turbines, and the aerodynamic load is one of the main influencing factors of wind turbine structural stress variation. Taking the NACA4415 horizontal axis wind turbine design...
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Min-Su Jo, Hyeong-Gook Kim, Dong-Hwan Kim, Jin-Hyeong Choi and Kil-Hee Kim
There has recently been growing interest in making a sustainable and durable fiber reinforced cementitious matrix (FRCM) to improve the seismic performance of RC column members. However, most studies evaluating the lateral confinement effect on FRCM jack...
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Haigang Wen, Luyao Li, Guangtai Shi, Haijun Ma and Xiaodong Peng
A spiral axial-flow blade pump (SABP), as the core piece of equipment in the oil and natural gas closed-gathering and transportation process, can not only transport gas?liquid mixtures with a high gas content, but can also transport gas?liquid?solid mixt...
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Yuanxing Dai, Zhenghao Liu, Wei Zhang, Jianping Chen and Jianguo Liu
This paper investigates the problem of vibration in an axial flow waterjet propeller with high power density and low specific speed. Based on fluid?structure coupling vibration analysis, combined with modal analysis and ship tests, the unsteady fluid?str...
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Xuerui Liu, Yanqi Wu and Yisong Zhou
Axial bearing capacity is the key index of circular concrete-filled steel tubes (CCFST). A hybrid PSO-ANN model consisting of an artificial neural network (ANN) optimized with particle swarm algorithm (PSO) was proposed to reliably and accurately predict...
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Daniel Franke, Daniel Möller, Maximilian Jüngst, Heinz-Peter Schiffer, Thomas Giersch and Bernd Becker
This study investigates the aerodynamic and aeroelastic characteristics of a transonic axial compressor, focusing on blade count reduced rotor behavior. The analysis is based on experiments, conducted at the Transonic Compressor Darmstadt test rig at Tec...
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Guohui Yang and Chengning Zhang
This paper proposes a computationally efficient approach for mapping permanent magnet (PM) power loss in permanent magnet synchronous machines (PMSMs). The PM loss mapping method here uses time-step finite element analysis (FEA) to determine the function...
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Chenwei Zhao, Zecan Tu and Junkui Mao
The film-cooling performance of a 2.5D braided ceramic matrix composite (CMC) plate with preformed holes was numerically studied. Four numerical models containing braided structures were established: one model with film-cooling holes preformed through fi...
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Zhaohui Hong, Dengfeng Fu, Wenbin Liu, Zefeng Zhou, Yue Yan and Shuwang Yan
Subsea pipelines are commonly employed in the offshore oil and gas industry to transport high-pressure and high-temperature (HPHT) hydrocarbons. The phenomenon of pipeline walking is a topic that has drawn a great deal of attention, and is related to the...
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Anthoula Karanasiou, Margaritis Kostoglou and Anastasios Karabelas
Vacuum membrane distillation (VMD) is an attractive variant of the novel membrane distillation process, which is promising for various separations, including water desalination and bioethanol recovery through fermentation of agro-industrial by-products. ...
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Alessio Suman, Annalisa Fortini, Nicola Aldi, Michele Pinelli and Mattia Merlin
The concept of smart morphing blades, which can control themselves to reduce or eliminate the need for active control systems, is a highly attractive solution in blade technology. In this paper, an innovative passive control system based on Shape Memory ...
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Majd Daroukh, Stéphane Moreau, Nicolas Gourdain, Jean-François Boussuge and Claude Sensiau
New ultra high bypass ratio architectures may significantly affect the fan tonal noise of future aircraft engines. Indeed, such a noise source is supposed to be dominated by the interaction of fan-blade wakes with outlet guide vanes. However, shorter nac...
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Mariana Simão, Jesus Mora-Rodriguez and Helena M. Ramos
Mathematical models have become the target of numerous attempts to obtain results that can be extrapolated to the study of hydraulic pressure infrastructures associated with different engineering requests. Simulation analysis based on finite element meth...
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Mariana Simão, Jesus Mora-Rodriguez, Helena M. Ramos
Pág. 1 - 11
Mathematical models have become the target of numerous attempts to obtain results that can be extrapolated to the study of hydraulic pressure infrastructures associated with different engineering requests. Simulation analysis based on finite element meth...
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