On a New Computational Approach for Transient Dynamics over the Low and Medium Frequency Ranges for Complex Engineering Structures

2009 ◽  
Author(s):  
M. Chevreuil ◽  
P. Ladevèze ◽  
Ph. Rouch
Keyword(s):  
Computational Approach ◽  
Transient Dynamics ◽  
Medium Frequency ◽  
Engineering Structures ◽  
Complex Engineering

scholarly journals COMPARATIVE ANALYSIS AND SELECTION OF TECHNOLOGY OF DEVICE OF FENCING METAL STRUCTURES IN CONSTRUCTION OF UNDERGROUND STRUCTURES

2021 ◽  
Vol 9 (1) ◽  
pp. 26-30
Author(s):  
Elena Korol ◽  
Zarina Chipova
Keyword(s):  
Underground Structures ◽  
Engineering Structures ◽  
Metal Structures ◽  
Large Cities ◽  
Long Time ◽  
Complex Engineering ◽  
Transport Problems ◽  
The Cost ◽  
Transport Complex ◽  
Selection Of

Urban motor transport complex engineering structures, the construction of which is carried out for a long time, and the cost is often tunnels of structures. Despite this, urban tunnels remain in demand as a means of solving transport problems, especially for large cities, in areas with dense urban development or an established architectural appearance, the violation of which is unacceptable. The construction of tunnels makes it possible to increase the throughput of highways, especially in places of large intersections, one of the diverting high-intensity transit traffic flows underground, making them invisible on the surface and thus not disrupting the existing historical appearance of the area.

Recent advances in reliability analysis of aeroengine rotor system: a review

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Xue-Qin Li ◽  
Lu-Kai Song ◽  
Guang-Chen Bai
Keyword(s):  
Reliability Analysis ◽  
Surrogate Model ◽  
Engineering Application ◽  
Rotor System ◽  
Engineering Structures ◽  
Content Type ◽  
Reliability Design ◽  
Rotor Systems ◽  
Practical Engineering ◽  
Complex Engineering

PurposeTo provide valuable information for scholars to grasp the current situations, hotspots and future development trends of reliability analysis area.Design/methodology/approachIn this paper, recent researches on efficient reliability analysis and applications in complex engineering structures like aeroengine rotor systems are reviewd.FindingsThe recent reliability analysis advances of engineering application in aeroengine rotor system are highlighted, it is worth pointing out that the surrogate model methods hold great efficiency and accuracy advantages in the complex reliability analysis of aeroengine rotor system, since its strong computing power can effectively reduce the analysis time consumption and accelerate the development procedures of aeroengine. Moreover, considering the multi-objective, multi-disciplinary, high-dimensionality and time-varying problems are the common problems in various complex engineering fields, the surrogate model methods and its developed methods also have broad application prospects in the future.Originality/valueFor the strong demand for efficient reliability design technique, this review paper may help to highlights the benefits of reliability analysis methods not only in academia but also in practical engineering application like aeroengine rotor system.

scholarly journals Mechanical properties of lightweight concrete with sintered aggregate

2020 ◽  
Vol 323 ◽  
pp. 01005
Author(s):  
Anna M. Rogowska ◽  
Paweł M. Lewiński
Keyword(s):  
Tensile Strength ◽  
Power Plants ◽  
Lightweight Concrete ◽  
Building Structures ◽  
Engineering Structures ◽  
Concrete Shrinkage ◽  
Axial Tensile ◽  
Cylinder Strength ◽  
Complex Engineering

The objective of this paper is the determination of short-term properties of lightweight concrete with sintered aggregate. The aggregate material comes from the recycling of ashes from power plants, which yield granules after processing. The research was planned based on two concrete mixes. A series of tests was carried out in the ITB Laboratory of Building Structures, Geotechnics and Concrete. As a result of these tests, the following parameters were determined: secant modulus of elasticity and cylinder strength of concrete, cube strength of concrete, axial tensile strength, splitting tensile strength, flexural strength and concrete shrinkage. Knowledge of the tested parameters is necessary when designing prestressed structures, as well as accepting proven values for static calculations when designing complex engineering structures, including prestressed elements made of lightweight concrete.

scholarly journals Transient analysis including the low- and the medium-frequency ranges of engineering structures

2007 ◽  
Vol 85 (17-18) ◽  
pp. 1431-1444 ◽  
Author(s):  
Mathilde Chevreuil ◽  
Pierre Ladevèze ◽  
Philippe Rouch
Keyword(s):  
Transient Analysis ◽  
Medium Frequency ◽  
Engineering Structures
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