Advanced Materials Research Vol. 1046

Abstract: The thinking way of Analytical Hierarchy Process (AHP) is to decompound a complicated risk problem according to layers, and to carry through judgment and calculation among the risk factors of the same layer to get the risk level of different schemes, and to provide decision basis for the choice of schemes. The paper discusses the risk evaluation of construction stage for building engineering projects based on Analytical Hierarchy Process (AHP), which would be beneficial to perfect the practice of the risk evaluation of construction stage for building engineering projects.

Abstract: Cultural landscape reflects the historical and traditional heritage of a place and has a symbolic significance and function. Place identity is a kind of psychological experience gradually achieved through perception, acceptation and satisfaction with a place and by living for some time in certain environment. The widespread and rapid acceleration of modernization and globalization lead to many places achieving "non-places" characteristics and homogenous landscapes, even in ethnic areas. This construction research attempts to grasp the inner relationship between cultural landscape and place identity in ethnic areas, and introduce the theory of sense of place and some methods that may shape rational cultural landscapes, seek some specific constructing measures to make the cultural landscapes more harmonious with environment, hence to enhance and strengthen place identify of ethnic groups and cultivate the delicate physical culture landscape against the background of emerging globalization.

Abstract: With the increasingly distinct pursuit of traditional culture by the public, the new Chinese-style landscape will be a development trend with constant improvement, playing a motivated role in a city, even a country. This paper conducts an analysis on the related concept and elements of new Chinese-style landscape and proposes the design methods of new Chinese-style landscape, to create a new design featuring the period feel and sense of nationality, with better integration and inheritance between tradition and modernity.

Abstract: Nowadays the sharp increase of population of the old in Xi’an has become a social spot. This paper will make the public elderly-care facility in Xi’an as the object. Give an overview of the basic situation and characteristics of endowment facilities throughout the region and summarize the problems existing in this area through detailed analysis of two typical facilities in the third part.

Abstract: Traffic impact analysis is the analysis and evaluation of construction project's impact on the surrounding road network traffic load, researching on the internal relations of urban land usage and transportation, revealling the laws and exploring how to coordinate the relationship between them. It’s a effective means to solve the problem of urban traffic. It has been promoted in many cities in China, its important role also increasingly cause the competent attention of the department of city.

Abstract: The mechanical and thermal response of elliptical head with multi-opening subjected to thermal loads, were carried out using ANSYS software. By dispersing the structure finite elements, the mechanical and fatigue behavior were discussed by APDL language following JB4732, and the result about stress evaluation and fatigue analysis are given, from the result, we can conclude that high first plus second stress and stress concentration may be formed at the intersection between center nozzle and elliptic, as well as between eccentric nozzle and elliptic. The structural discontinuity degree and temperature fluctuation has a big influence on stress concentration, as the most common, opening nozzle of a pressure vessel, the checking of dynamic and static of the structure, especially fatigue-checking are necessary.

Abstract: On the basis of the pipe network hydraulic calculation of basic theory, the pipe network utilization, using graph theory and peak array build relationships and storage node and pipe sections between the pipeline node associated with the hydraulic parameters of pipe sections linked together establish a common heating pipe network hydraulic calculation models. Matrix for the model were derived solving ideas based on the finite element method and linearization method for existing node equation method to improve to get a new heating network hydraulic calculation methods common to construct a new iterative calculation equation, to improve the convergence of iterative calculation.

Abstract: Constant Pressure in Water Supply System with Frequency Converter is a complicated non-linear system, and it’s difficult and abstract to research only in mathematic way. In order to study the running mode of the system and improve the actual situation, based on the control theory analysis of the system, a model of Constant Pressure in Water Supply System with Schneider Electric ATV 61 Converter was developed using MATLAB/SIMULINK. The S-function model of Matlab was used in simulation of the non-linear part. A sample Water Supply System was simulated using the proposed model. The effectiveness of the model was demonstrated by the simulation result. The proposed model is useful in analysis and designing of Constant Pressure in Water Supply System.

Abstract: A python program is developed for analysis and design of planar four-bar linkages. The program contains one main class for design and analysis of common use. It allows users to make the analysis of position, velocity, acceleration for any four-bar linkages, and show an animation to simulate the motion of planar mechanism. It offers a reference to the beginner for teaching and learning mechanism design and analysis. This program also allows user make changes and improvement on default code for application.

Abstract: Taking into account the issue of configuration or aerodynamic heating, most supersonic and hypersonic flight vehicles have to use the blunt-nosed body. However, in supersonic especially in hypersonic flow the strong bow shock ahead of the blunt nose introduces a rather high shock drag that affects the aerodynamic performance of the vehicles seriously. A spike mounted on a blunt body during its flight pushes the strong bow shock away from the body surface and forms recirculation flow with low pressure ahead of the body surface, and then decreases the drag. The drag reduction effects of spikes in high supersonic and hypersonic flow had been validated through experimental and numerical methods. In order to analyze the influence of the spike on aerodynamic characteristics at low supersonic (M=1.5) flow past blunt-nosed bodies, numerical studies were carried out which included the influence of the spike shape, the analysis of the fluid flow structures and the effect on the aerodynamic characteristics of a blunt body.