Special issue of Engineering Analysis with Boundary Elements: Computational approaches to mechanical response analysis of structures at diverse scales

2022 ◽  
Vol 136 ◽  
pp. 1-2
Author(s):  
Krzysztof Kamil Żur ◽  
J.N. Reddy ◽  
Ali Farajpour ◽  
Jinseok Kim
Keyword(s):  
Mechanical Response ◽  
Boundary Elements ◽  
Response Analysis ◽  
Engineering Analysis ◽  
Special Issue ◽  
Computational Approaches

Mechanical Response Analysis of the Composite Asphalt Pavement

2014 ◽  
Vol 1023 ◽  
pp. 28-31
Author(s):  
Li Min Li
Keyword(s):  
Service Life ◽  
Mechanical Response ◽  
Asphalt Pavement ◽  
Road Construction ◽  
Pavement Design ◽  
Rigid Base ◽  
Response Analysis ◽  
Early Failure ◽  
Short Service Life ◽  
Design Software

With the constant increasing of traffic flow and axle load, the early failure of semi-rigid base asphalt pavement is increasingly serious in China. The bad durability and short service life of pavement have become main obstacles in road construction development. Based on the experience of successful application, the early failure of semi-rigid base asphalt pavement is solved, and the service life of pavement is increased by using of the composite asphalt pavement. To solve the design problem of the composite asphalt pavement , its mechanical properties influence results of are obtained by the factors, such as shear strain, shear stress, compression strain on top of subgrade, etc, by a lot of calculation using Shell pavement design software. These provide theoretical basis for durable asphalt pavement design based on rut-resistance property.

Flow-Induced Vibration Analysis of a Water Injection System at Elevated Flow Rates of an FPSO

2019 ◽  
Author(s):  
Néstor González Díez ◽  
Juan P. Pontaza ◽  
Oluwaseun M. Awe ◽  
Pieter van Beek ◽  
Can Tümer
Keyword(s):  
Mechanical Response ◽  
Optimization Technique ◽  
Water Injection ◽  
Element Model ◽  
Injection System ◽  
Response Analysis ◽  
Flow Induced Vibration ◽  
Flow Rates ◽  
Screening Analysis ◽  
High Level

Abstract The water injection system of an FPSO active in the Gulf of Guinea is to increase injection capacity to levels that are threatening from a flow-induced vibration perspective, such that hydrocarbon recovery can be accelerated. A three-tier method based on the internal guidelines of the system operator has been employed to assess the level of FIV threat expected from the increase in flow rate. A high-level screening analysis is followed by a more detailed approach, modified in this case by introducing knowledge obtained from field data gathered during a comprehensive measurement campaign aboard the FPSO. In particular, the data has been used to calibrate the finite element model of the mechanical layout of the pipework and associated supporting by making use of an optimization technique. The PSD of the flow excitation has been calibrated to match the measured response of the system, with descriptions of the turbulent excitation introduced in elbows by means of PSD functions available in the open literature. The PSDs, once calibrated, are further scaled to the future flow-rates so that they can be used as input to the mechanical response analysis. Though the high-level screening analysis delivers the conclusion that flow rates should be limited, the detailed analysis proves that the expected vibrations will be acceptable.

The Mechanical Response Analysis of the Frame Structure with the Interval Parameters Taken into Account

2012 ◽  
Vol 166-169 ◽  
pp. 3118-3123
Author(s):  
Fan Bo Meng ◽  
Shu Ying Qu ◽  
Wen Pu Shi ◽  
Cui Ling Li
Keyword(s):  
Mechanical Response ◽  
Reference Method ◽  
Frame Structure ◽  
Response Analysis ◽  
Accurate Calculation ◽  
Actual Structure ◽  
Interval Parameters ◽  
Analysis Methods

In this paper, we checked the mechanical response of a simple frame structure with and without the existence of interval parameters taken into account. Discovered the differences between the traditional analysis methods of the structure and the analysis methods with the range of parameters taken into account. Gave their own ideas about the mechanical response of the frame structure considering the uncertainties, and provides a reference method for the accurate calculation of the actual structure considering the range of parameters.

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