Papers by Keyword: Systematic Design

Abstract: The main objective of this study is to introduce a systematic design procedure for short-span segmental beams following a sophisticated ACI 440.2R-17 design procedure. The general aspects of innovative short-span segmental beams are easy to fabricate, economical and rapidly placed in pre-specified positions. Short-span segmental beams fabricated from individual precast plain-concrete blocks and CFRP plates. Recently, experimental tests performed on short-span segmental beams, by the authors, investigated CFRP plate-bonding, CFRP plate cross-sectional area, the thickness of plate-bonding epoxy resin, surface-to-surface condition of concrete blocks, as well as, interface condition of the bonding surface. The experimental program comprises testing of eight short-span segmental beams with an overall length, width and depth of (900, 200 and 80) mm, respectively, divided into four groups and subjected to 4-point bending test. The investigated test specimens exhibited considerable flexural strength under loading. Systematic designing of short-span segmental beams (SSSB) is presented in the current research. The advanced design method of SSSB with 1-layer of CFRP plates revealed an overestimation in ultimate strength by (73 and 15) % from the tested SSSB consisted of 1-layer CFRP/cementitious adhesive and SSSB has 1-layer CFRP/epoxy adhesive; respectively. Whereas the design method of SSSB with 2-layer of CFRP plates resulted in overestimation in strength by (71 and 45) % from the physical models of SSSB consisted of 2-layer CFRP/cementitious adhesive and SSSB has 2-layer CFRP /epoxy adhesive; respectively.

Abstract: The Full decoration residential comply with the developed economic and improved residents' living standards. On the basis comparing the decorate between China and western countries, The full decoration residential should take systematic design and pay attention to the decorate strategy.

Abstract: The drawings archive of a company is an important font of information that could be used during the design process. In fact, it is a collection of known and proven solutions to design problems and, also, the drawings include a variety of information useful to design such as physical principles to achieve a function or solutions of particular machine design problems. The use of these data is however conditioned by easiness of access to the information. Normally, the drawings archive is not structured in a useful manner for the design and the retrieve of the information contained requires effort and time that are not often available to the designer. The use of database systems and informatics tools, as Product Data Management (PDM) or Product Life-cycle Management (PLM) systems, can allow company to add more attributes to the drawing during its storage, allowing a different access to the information. This work proposes an example about the organization of the information based on the functional structure of a product. The organization proposed was also used to catalogue the data stored in relation to the standards required to the product. This to demonstrate how much information is hided into the historical archives of a company and how much it could be useful during the design process.

Abstract: Systematic design is an effective methodology which generates possible designs and eliminates them in a step by step manner. The methodology allows designers to generate sub modules and creates relationships or network between these modules to form to functional structure of the design. Due to its capability of reducing development time and that of satisfying customer requirements it has wide application areas. Height adjustment mechanisms for consumer goods industry are special interest for designers and have limited application area due to fact that such kind of mechanisms cannot totally meet customer requirements and they may be too complex to manage. So, different techniques or approaches must be employed to design a specific mechanism for height adjustment. Systematic design approach is employed in this study to produce potential design proposals together with their driving mechanisms for height adjustable refrigerator foot. First stage of systematic approach employed in this study is definition of the height adjustment problem and design requirements. A wide patent research is then completed to seek for existing solutions. Subsystems and functional structure of height adjustment problem arc then formed using "Technical Process Flow" and "Functional Structure Chart". "Morphological Matrix" is created to illustrate each process step and types of design proposals. Last stage is to evaluate the generated design proposals according to the systematic design philosophy to create a novel conceptual design to be patented. Finally, the novel design produced has been manufactured with rapid prototyping technology for further evaluations.

Abstract: The A new design method of the products named “Systematize Design” has been advanced in this paper. From the view of the point of the system engineering, the planning of product design makes the product design qualities improve to a great extent. Besides the understanding of the client requirements, the design planning of products, the so-called 7D’s: Design ideas, Design environments, Design objective, Design process, Design contents, Design methods and the Design quality evaluation, should be considered completely and planned systematically. Based on the previous work, the product design should be conducted according to the systematic design method. The paper makes a detailed expatiation of the systematic design method, viz. 1+3+X design method, in which 1 represents the optimal design for product functions, 3 means the design method synthesizing the dynamic optimization, intelligent optimization and visualized optimization combined organically, and X is the design method for the special requirements of the products.

Abstract: Design and R&D (Research and Development) of products play an important role in development and competitiveness of enterprise. How to do the works better We think that most advanced product design methodology should be used on design, research and development of products. So-called most advanced product design methodology is that based on “the Scientific Outlook on Development” that we set up recent years. New developments of product design methodology include: At first it has been classified that more than seventy theories and methods proposed by domestic and overseas scholars in recent 100 years; QCTES was instead of IQCTES including six requirements of product design; traditional design stages were replaced with four new stages including investigation, planning, implement and inspection; green design was replaced with harmonious design; traditional design method was replaced with deep-layer design method; concept and connotation of product top-layer design were proposed; more detailed contents of product systematic design were advanced; formulas of complete system and product design quality, and connection equation between design objective, design content and design method were submitted. We got good effects to apply above product design methodology on many product designs recent years.

Abstract: This paper presents the patented mechanical concept for steering and level control of a mobile robot equipped with four driving units and the methods that lead to the development of this mechatronic system. The mobile robot exhibits excellent maneuverability and considerable advantages when moving in difficult environments such as rough landscapes. The paper discusses a refined approach to develop mechatronic systems which is based on the well-known V-model. The refined approach allows a conscious planning and control of a mechatronic design process.