An Approach for Prescribed Experiments for Aerodynamic-Structural Dynamic Interaction

2013 ◽  
Keyword(s):  
Dynamic Interaction ◽  
Structural Dynamic

The Research on Soil-Structural Dynamic Interaction

2011 ◽  
Vol 90-93 ◽  
pp. 2292-2296
Author(s):  
Xiao Li Dong ◽  
Jun Hong Hao ◽  
Yan Zhen Wang ◽  
Rui Hua Wang
Keyword(s):  
Soil Structure ◽  
Dynamic Interaction ◽  
Structural Dynamic ◽  
Advantages And Disadvantages ◽  
Structure Dynamic ◽  
At Home

This paper will introduce the basic methods of soil-structure dynamic interaction at home and abroad, and analysis the advantages and disadvantages of these methods. Finally, the paper will put forward opinions on the research tendency of soil-structure dynamic interaction.

Selection of Artificial Boundary Condition on Soil-Structure Dynamic Interaction

2010 ◽  
Vol 450 ◽  
pp. 498-501 ◽  
Author(s):  
Hai Feng Sun ◽  
Li Ping Jing ◽  
Xian Chun Meng
Keyword(s):  
Numerical Simulation ◽  
Soil Structure ◽  
Dynamic Interaction ◽  
Artificial Boundary ◽  
Structural Dynamic ◽  
Fixed Boundary ◽  
Calculation Region ◽  
Structure Dynamic ◽  
Viscous Boundary ◽  
Selection Of

Numerical simulation is an important method to study the structural vibration response. And artificial boundary conditions will directly affect the reliability of numerical simulation results. While when we conduct numerical simulation of vibration, it is often assumed the input surface to be a fixed boundary. The purpose of this paper is to make a study on rationality of this method by the use of simulation on a two-dimensional homogeneous elastic half-space model and a soil-structure dynamic interaction model. The results show that: when fixed boundary used, after the wave reflected to the fixed boundary, it couldn’t leave the calculation region and will reflects back into the calculation region again; when viscous boundary used, the energy will be absorbed by the bottom boundary when the wave achieved the viscous boundary. It simulates the real situation that the wave goes through boundary surface into the infinite medium. So, when carrying out numerical simulation on structural dynamic analysis, the selection of fixed boundary is inclined to an incorrect result, while the select of viscous boundary is more accurate and reasonable.

scholarly journals Study on Human-structure Dynamic Interaction in Civil Engineering

2018 ◽  
Vol 38 ◽  
pp. 03013
Author(s):  
Feng Gao ◽  
Li Lin Cao ◽  
Xing Hua Li
Keyword(s):  
Dynamic Characteristics ◽  
Civil Engineering ◽  
Dynamic Interaction ◽  
Structural Vibration ◽  
Structural Dynamic ◽  
Structure Interaction ◽  
Load Models ◽  
Advantages And Disadvantages ◽  
Structure Dynamic ◽  
Structural Dynamic Characteristics

The research of human-structure dynamic interaction are reviewed. Firstly, the influence of the crowd load on structural dynamic characteristics is introduced and the advantages and disadvantages of different crowd load models are analyzed. Then, discussing the influence of structural vibration on the human-induced load, especially the influence of different stiffness structures on the crowd load. Finally, questions about human-structure interaction that require further study are presented.

A Theoretical Treatment of Crowd–Structure Interaction

2018 ◽  
Vol 18 (01) ◽  
pp. 1871001 ◽  
Author(s):  
Yan-an Gao ◽  
Qing-shan Yang
Keyword(s):  
Damping Ratio ◽  
Three Dimensional ◽  
Interaction Model ◽  
Dynamic Interaction ◽  
Theoretical Treatment ◽  
Social Force ◽  
Structural Dynamic ◽  
Structure Interaction ◽  
Crowd Density ◽  
The Social

A vertical crowd–structure interaction model including the interaction amongst pedestrians is developed to study the structural performances of the supporting structure with social force effect. This model can be used to analyze the vibration problem of footbridge under a large crowd excitation. The social force is firstly introduced to describe the dynamic interaction amongst the bipedal models with damping-spring legs modeling pedestrian movement on a three-dimensional plate structure. The social force determines the walking direction and velocity of pedestrian. Numerical studies show that the structural dynamic performances can be remarkably changed under the crowd action. The natural frequency of structure is decreased and is time-varying with an increase in the crowd density. However, the damping ratio of structure is increased. The proposed model could well describe the crowd–structure dynamic interaction.

The Research Methods of Soil and Structural Dynamic Interaction

2011 ◽  
Vol 250-253 ◽  
pp. 2068-2073
Author(s):  
Xiao Li Dong
Keyword(s):  
Seismic Response ◽  
Soil Structure ◽  
Underground Structure ◽  
Dynamic Interaction ◽  
Subway Station ◽  
Underground Structures ◽  
Structural Dynamic ◽  
Advantages And Disadvantages ◽  
Urban Construction ◽  
Structure Dynamic

This paper will introduce the basic methods of soil-structure dynamic interaction at home and abroad, and analysis the advantages and disadvantages of these methods. Finally, the paper will put forward opinions on the research tendency of soil-structure dynamic interaction. With the development of urbanization, the urban population, planning area and urban environment are faced with tremendous stress, so developing and utilizing the underground space becomes the concerns of many cities. In recent decades, the underground structure has been widely used in urban construction, transportation, national defense engineering, and hydraulic engineering and so on. Especially in the urban construction, with underground railway which has been seemed as the large-capacity backbone and fast public transport system has become an important issue of urban passenger traffic solution. In our country, there are still large potential in developing and utilizing the underground structure and the structure forms will become more and more complicated. China is a strong and frequent earthquake country, the earthquake-proof problems about the underground structures such as Long-span subway station has become city astigmatic engineering and the important research content on disaster prevention and mitigation. These researches can ensure the safe use of underground structures and reduce natural disasters to humankind. To the subway station and the tunnel structure, soil characteristics significantly influence the structure seismic response and destruction features. In seismic response process, the overburden of gravitational can greatly affect on the structural seismic response. The solution to the underground structure seismic problem should focus on two aspects: on one hand we should focus on the research of soil-structure dynamic interaction; on the other hand, we should deal with soil’s half-limitlessness simulation problem.

Estimation of Competitiveness of Single-Industry Towns of the Samara Region

2020 ◽  
pp. 67-81
Author(s):  
Julia Rishatovna Kuzhanbaeva ◽  
Rustam Taufihovich Kuzhanbaev ◽  
Maria S. Guseva
Keyword(s):  
Social Services ◽  
System Analysis ◽  
Objective Assessment ◽  
Practical Interest ◽  
Federal District ◽  
Social Consequences ◽  
Statistical Parameters ◽  
Structural Dynamic ◽  
Single Industry ◽  
Integral Indicator

In order to prevent negative socio-economic trends, to predict the social consequences of decisions on the implementation of state policy in the development of single-industry territories, public authorities monitor the socio-economic situation in single-industry towns based on an assessment of a number of statistical indicators. Such a differentiated assessment of statistical parameters does not allow a comprehensive assessment of the level of development and competitiveness of a single-industry town by territory, which is of particular relevance in modern conditions of glocalization. Of particular scientific and practical interest is a comparative analysis of the level of development of single-industry towns on the basis of an integral indicator that takes into account aspects of various spheres of life of the population and allows an objective assessment of the competitive positions of single-industry territories, which is currently not used by state authorities for monitoring. The purpose of the work is to assess and justify the conditions and development trends of single-industry towns of the Samara region on the basis of calculating the integral indicator of competitiveness, taking into account the level of development of the economy, finance, employment, social security and demography, as well as the mono-profile level of territories. In this study, we used the methods of system analysis, the method of comparisons and analogies, the method of generalization, the methods of dialectic and statistical analysis, the method of expert estimates, the method of retrospective estimates and structural-dynamic analysis. The paper provides an overview of the single-industry towns of the regions of the Volga Federal District; the results of testing the methodology for assessing the competitiveness of single-industry towns of the Samara region on the basis of an integral indicator are presented and trends in its change in the period 2013–2017 are identified. The study involved four single-industry towns of the Samara region: Oktyabrsk, Pohvistnevo, Tolyatti, Chapaevsk. The calculations showed that For five years Oktyabrsk was an outsider in four of the six areas under study (economics, labor, social services, demography), which led to the lowest competitiveness index and allowed us to identify the competitiveness of a single-industry town as “below average”. In relatively equal socio-economic conditions, there were Pohvistnevo, Togliatti and Chapaevsk, the level of competitiveness of which is “above average”.

Dynamic Interaction between the Coolant Flow and Fuel Assembly

Vestnik MEI ◽  
2019 ◽  
Vol 5 ◽  
pp. 11-23
Author(s):  
Konstantin N. Proskuryakov ◽  
Keyword(s):  
Fuel Assembly ◽  
Dynamic Interaction ◽  
Coolant Flow
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