Advances in Computational Design

High-performing architecture should be designed by taking into account the mutual dependency between the new building and the local context. The performative architecture plays an important role to avert any unforeseen failures after the building has been built; particularly ones related to the microclimate impacts that affect the human comfort. The use of the concept of solar envelopes helps designers to construct the developable mass of the building design considering the solar access and the site obstruction. However, the current analysis method using solar envelopes lack in terms of integrating the detailed information of the existing context during the simulation process. In architectural design, often the current site modelling not only absent in preserving the complex geometry but also information on the surface characteristics. Currently, the emerging applications of point clouds offer a great possibility to overcome these limitations, since they include the attribute information such as XYZ as the position information and RGB as the color information. This study particularly presents a comparative analysis between the manually built 3D models and the models generated from the point cloud data. The modelling comparisons focus on the relevant factors of solar radiation and a set of simulation to calculate the performance indicators regarding selected portions of the models. The experimental results emphasize an introduction of the design approach and the dataset visibility of the 3D existing environments. This paper ultimately aims at improving the current architectural decision of support environment means, by increasing the correspondence between the digital models for performance analysis and the real environments (context of design) during the conceptual design phase.

M.F. Alkadri

M. Turrin

I.S. Sariyildiz

The use and potential applications of point clouds in simulation of solar radiation for solar access in urban contexts

点云在城市环境中太阳辐射模拟及太阳能获取中的应用与潜在用途

点云在城市环境中日照模拟及其潜在应用

城市环境中太阳辐射模拟中点云的使用及潜在应用

This study focuses on the efficiency and applicability of dynamic relaxation methods in form-finding of membrane structures. Membrane structures have large deformations that require complex nonlinear analysis. The first step of analysis of these structures is the form-finding process including a geometrically nonlinear analysis. Several numerical methods for form-finding have been introduced such as the dynamic relaxation, force density method, particle spring systems and the updated reference strategy. In the present study, dynamic relaxation method (DRM) is investigated. The dynamic relaxation method is an iterative process that is used for the static equilibrium analysis of geometrically nonlinear problems. Five different examples are used in this paper. To achieve the grading of the different dynamic relaxation methods in form-finding of membrane structures, a performance index is introduced. The results indicate that viscous damping methods show better performance than kinetic damping in finding the shapes of membrane structures.

S. Fatemeh Labbafi

S. Reza Sarafrazi

Thomas H.K. Kang

Comparison of viscous and kinetic dynamic relaxation methods in form-finding of membrane structures

膜结构找形中粘性动态松弛法与动力松弛法的比较

Single tooth finite element model is widely used to investigate tooth behaviors with reducing modeling process and computational time. This study aims to examine the validity of a single tooth model in clenching and chewing actions. The single tooth model consisting of tooth #16, the periodontal ligament (PDL), and bone was subjected to coronal-apical movements. The predicted strains from the analyses were validated with the in-vitro experimental results on tooth-PDL-bone specimen. The stress distributions of tooth root and PDL were compared to those from the full skull model to evaluate reasonability of the single tooth model. The results of this study indicate that the single tooth model is able to predict valid structural and mechanical behaviors in clenching and chewing activities.

Yeokyeong Lee

Minji Kim

Ji-Man Park

Hee Sun Kim

Validity assessment of a single tooth model in clenching and chewing simulations

单牙模型在咬合和咀嚼模拟中的有效性评估

Failure of a Multi-storeyed reinforced concrete framed structure occurs when a primary vertical structural component is isolated or made fragile, due to artificial or natural hazards. Load carried by vertical component (column) is transferred to neighbouring columns in the structure, if the neighbouring column is incompetent of holding the extra load, this leads to the progressive failure of neighbouring members and finally to the failure of partial or whole structure. The collapsing system frequently seeks alternative load path in order to stay alive. One of the imperative features of collapse is that the final damage is not relative to the initial damage. In this paper, the effect on the column and beam adjacent to statically removed vertical element in terms of axial force, shear force and bending moment is investigated. Using Alternate load path method, numerical modelling of two dimensional one bay, two bay with variation in storey heights are analysed with FE model in order to obtain better understanding of failure mechanism of multi-storeyed reinforced concrete framed structure. The results indicate that the corner column is more susceptible to progressive collapse when compared to middle column, using this simplified methodology one can easily predict how the structure can be made to stay alive in case of sudden failure of any horizontal or vertical structural element before designing.

Irfan Ahmed

Tariq Ahmad Sheikh

P. Gajalakshmi

J. Revathy

Study on failure mechanism of multi-storeyed reinforced concrete framed structures

多层钢筋混凝土框架结构失效机理研究

Multi-stage pumps are the most popular pumps among various kinds of centrifugal pumps. A thorough review of different kinds of literature has led to the conclusion that there is a desperate need to increase the performance of the multi-stage centrifugal pump. Many investigators have put their efforts to increase the pump performance and also the work is being projected on various aspects of pump performance variables. To improve the multistage centrifugal pump performance by investigation, modification, and analysis many works of literature are available. For analysis, many researchers used the Navier-Stokes solver to create the three-dimensional unsteady turbulent flow numerical model with the standard k-e turbulent equation. This paper mainly focuses on research related to the multi-stage centrifugal pump.

Bhushan R. Rode

Ruchi Khare

A review on development in design of multistage centrifugal pump

多级离心泵设计发展综述

The lightweight superstructure is beneficial for bridges in remote areas and emergency erection. In such weight-sensitive applications, the combination of fiber-reinforced polymer (FRP) as a material and box-beams as a structural system have enormous scope. This combination offers various advantages, but as a thin-walled structure, their designs are often governed by buckling criteria. FRP box-beams lose their stability either by flange or web buckling mode. In this paper, the web buckling behavior of simply supported FRP box-beam subjected to transverse load has been studied by modeling full box-beam to consider the effect of real state of stress (stress variation in length direction) and boundary conditions (rotational restraint at web-flange junction). A parametric study by varying the sectional geometry and fiber orientation is carried out by using ANSYS software. The accuracy of the FE models was ensured by verifying them against the available results provided in the literature. With the help of developed database the influential parameters (i.e., αs, βw, δw and γ) affecting the web bucklings are identified. Design trends have been developed which will be helpful to the designers in the preliminary stage. Finally, the importance of governing parameters and design trends are demonstrated through pedestrian bridge design.

M. Kasiviswanathan

Akhil Upadhyaya

Web buckling behavior of FRP composite box-beams: Governing parameters and their effect

FRP复合箱梁的屈曲行为：主导参数及其影响

This research aims to demonstrate the optimal geometrical design of splayed multiple cross-sectional pin fin heat sinks (SMCSPFHS), which are a type of side-inlet-side-outlet heat sink (SISOHS). The optimiser strength Pareto evolutionary algorithm 2 (SPEA2) is employed to explore a set of Pareto optimal solutions. Objective functions are the fan pumping power and junction temperature. Function evaluations can be accomplished using computational fluid dynamics (CFD) analysis. Design variables include pin cross-sectional areas, the number of fins, fin pitch, thickness of heat sink base, inlet air speed, fin heights, and fin orientations with respect to the base. Design constraints are defined in such a way as to make a heat sink usable and easy to manufacture. The optimum results obtained from SPEA2 are compared with the straight pin fin design results obtained from hybrid population-based incremental learning and differential evolution (PBIL-DE), SPEA2, and an unrestricted population size evolutionary multiobjective optimisation algorithm (UPSEMOA). The results indicate that the splayed pin-fin design using SPEA2 is superior to those reported in the literature.

Sanchai Ramphueiphad

Sujin Bureerat

Optimal fin planting of splayed multiple cross-sectional pin fin heat sinks using a strength pareto evolutionary algorithm 2

使用强度帕累托进化算法2进行分叉多截面针翅散热器的最佳鳍片布置

Abbreviation
Journal Impact	1.00
Quartiles(Global)	COMPUTER SCIENCE, SOFTWARE ENGINEERING(Q4)

ISSN	2383-8477, 2466-0523
h-index	15

Publication Information	Publisher: Techno-Press，Publishing cycle: ，Journal Type: journal，Open Access Journals: No
Basic data	Year of publication: 2016，Proportion of original research papers: 100.00%，Self Citation Rate:11.10%， Gold OA Rate: 0.00%

Advances in Computational Design

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The use and potential applications of point clouds in simulation of solar radiation for solar access in urban contexts

The use and potential applications of point clouds in simulation of solar radiation for solar access in urban contexts

The use and potential applications of point clouds in simulation of solar radiation for solar access in urban contexts

Comparison of viscous and kinetic dynamic relaxation methods in form-finding of membrane structures

The use and potential applications of point clouds in simulation of solar radiation for solar access in urban contexts

Validity assessment of a single tooth model in clenching and chewing simulations

Study on failure mechanism of multi-storeyed reinforced concrete framed structures

A review on development in design of multistage centrifugal pump

Web buckling behavior of FRP composite box-beams: Governing parameters and their effect

Optimal fin planting of splayed multiple cross-sectional pin fin heat sinks using a strength pareto evolutionary algorithm 2