Papers by Keyword: Integrated Design

Abstract: Over the last decades, there has been growing pressure on industrial companies to offer to their costumers products with high quality, in the minimum deadlines and with reasonable prices. Since the design phase plays a key role to achieve these difficult goals, many traditional, DFX (Design For X) and integrated approaches have been proposed. However, many limits are still present. Thus, the main objectives of this work were first to identify these limits and then to overcome them by proposing and developing an automated framework for integrated product design. In this work, we automated the integrated DFMMA (Design For Materials, Manufacturing and Assembly) approach by developing an architecture composed of four levels, namely: the Common Information Modeling Level, the Selection Systems Level, the Inference and Computation Level and finally the Application Level. The proposed automated system is based on ontologies, on the CBR (Cases Based Reasoning) and the RBR (Rules Based Reasoning). The first main result obtained throughout the contributions consists on the integration of Manufacturing process selection, Assembly solution selection and materials selection in one integrated design approach. The second main result obtained consists on the exploitation of all the previous design studies developed by the design team and the ability to reuse the designers experience throughout the case based reasoning used in the proposed architecture. Another important result consists on the formalization and the automation of the execution of the design rules and the ability to infer new results and to check inconsistencies in the developed product using the data and information modeled in the ontological model and throughout the Cases Based Reasoning that we have incorporated in the developed approach. In this way, the redundancy in work and the difficulties faced in case of having a high number of design alternatives are avoided. Consequently, the product quality increases and wastes of time and money decrease. Finally, to validate the functioning and the efficacy of the proposed DFMMA system, an application on the design of a complex mechanical product is developed in the end of the work.

Abstract: This paper reports on a project for a senior citizens’ residence in the vicinity of Trento, Italy. The project constitutes the major part of a Master’s thesis in Architectural Engineering, developed at the University of Trento in Italy and at TU Vienna in Austria. The work entails a full account of environmental impacts during the life cycle of the building through LCA (Life Cycle Assessment). Furthermore, as buildings' end of life scenarios are insufficiently considered in most conventional LCA studies, the present contribution attempts to pursue a “cradle to cradle” approach (exploring a closed-loop flow of materials, energy, and resources) and to emphasize that the consequences of the choices made at the early stage of the design phase are critical for the subsequent stages of construction, use, maintenance, and end of life.The work consists of two parts. The first part relating to the architectural project involves careful consideration of the local characteristics of the site according to bioclimatic studies. In the second part, a comparative LCA study of different timber constructions and energy system options is presented, followed by a global LCA of the project. This aims at the estimation of the impacts of construction and end of life. Thereby, different possibilities are explored for reusing and recycling materials, such that disposal and incineration could be reduced as much as possible. Thus, the relative significance of different stages of the building construction, operation, and decommissioning can be explored.In conclusion, the paper offers a number of theoretical reflections on uncertainty analysis in LCA, addressing input assumptions (availability and quality of data) as well those regarding normalization and weighting factors. Thereby, the aim is to contribute to efforts toward a more pervasive application of the LCA methodology in the building design and delivery process.

Abstract: The tools used for collaborative product design is based on PLM solutions, integrating BOM, CAD, CAE, CAPP, CAM and PDM software. The PLM platforms are distributed in virtual project team of partners. Currently, the integrated collaborative and distributed product design and manufacture can be supported by the cloud technology, given advances in Cloud Computing. The objective of our research is to develop an infrastructure for integrated collaborative and distributed product design and manufacturing, including software applications, CNC machine tools, additive manufacturing machines etc., dispersed in different universities labs for students’ education.

Abstract: Significant changes in the world population demand interior design approach to be more usable and accessible for all people. However, the lack of awareness and misinterpretation on the “real user” during interior design process discourage the integration of Universal design (UD) in the built environment. For that reason, this study employed literature survey to identify how UD principles could support diverse users in the built environment. Then, we recognize how UD can be employed in the interior design process to meet this purpose. The results of this study contribute in recommending the integration of UD as a green interior design approach for accommodating diverse user in the Malaysian built environment.

Abstract: Currently, the rural-town planning in fast-developing region have encountered various constraints in reality in China, especially the institutional limitations, which in a long-term, consistently hinder the improvement of rural town planning and its implementation. Facing the challenges, various countermeasures have been conducted attributed to exploration in practice and learning from international advanced experiences. This essay concluded some updated methodogolies on rural-town planning and management to improve the performance of planning and implementation.

Abstract: . The traditional radar antenna pattern measurement has high cost and complex procedures. With the flexibility and low cost of small rotor UAV, we propose a new radar antenna pattern measurement based on UAV platform. In the following we will analyze the traditional radar antenna pattern measurement techniques and its shortcomings. Then we suggest a solution based on UAV and expound the key technologies. At the end we analyze the difficulties and errors that may occur in engineering practices, which provides basis for the next project implementation.

Abstract: In Pro/E environment, it gived the details about parameteric designs on cam contour curve. By 3D parameterized modeling, motion simulation and analysis of cam, the process planning and tool travel-paths generating were given. G-Codes program was automatically generated too. At last, the integrated design on CAM/CAPP/CNC for cam components is realized.

Abstract: The problem of the actual production process is based on the concentrated four-axis machining process, high machining precision and machining difficulty of rub the drum parts, the author analyzes the four-axis machining fixture design of rub the drum, and then puts forward the method of the four-axis machining fixture design of rub the drum, offering the fixture design flow chart. Taking Solidworks software as a platform, the author makes a analysis of 3D digital design and assembly to rub the drum, fixture and clamping mechanism, completes the virtual assembly with rub the drum, fixture and clamping mechanism, realizing the integrated design, making the structure of the clamp more clearly and shortening the product development cycle.

Abstract: This paper analyzes surveys of domestic hot-water use in three Chinese cities (Shanghai, Hangzhou, Guilin). The survey results reveal that the ratio of solar hot water in domestic hot-water uses is less than 20%. Use patterns of hot water are different from different seasons and locations. This suggests that the amount of daily hot-water consumption should be determined by local climatic and economic conditions. From successfully-completed construction projects, the integrated design guidelines for high-rise residential buildings are also provided in the paper.

Abstract: This paper describes surveys on high-rise residential buildings development and uses of domestic hot water in China. The survey results indicate that construction of high-rise residential buildings has become the main current in the development of residential construction. The application of the integrated solar hot-water system in high-rise residential buildings is reviewed, and optimal system design is described in the paper. A discussion is also provided on technical subjects and issues in the future application of the integrated solar hot-water system to high-rise residential buildings. As a conclusion, the central-heating/separate-storing system would be one of currently applicable integrated solar hot-water systems in China.