Rapid parametric design methods for shoe-last customization

In 1980s, when digital technology flourished, computer was used solely as drawing tool, while in today's architectural environment, digital technology has undertaken the role of being the main component of the architectural production process. Parametric design, algorithmic design and similar digital design methods, gathered under the title of computational design, have been an important tool in the emergence of contemporary architectural products. With its alternatives, parametric design has been one of the most important current architecture’s problem solvers, enabling control of all criteria, from production of forms to efficient use of topography and natural conditions to reflection of local cultural architectural texture. Parametric design with its ability to use all the criteria limiting design as a forming tool has become an instrument that arranges relations of architecture with different disciplines such as ecology, climatology, engineering, geography, sociology, history, archeology, lighting. In this context, parametric design with its potentials such as reinterpretation of traditional architectural forms, understanding of cultural infrastructure with its all layers and considering it as a form source has become a preferred approach in societies expressing their social and cultural changes through architecture, especially in buildings such as museums and libraries they construct. On the other hand, structures’ harmony designed by using parametric design with cultural and environmental factors has been another reason for preference of this method. In UAE, which is a newly established country and attempt to create its cultural memory together with its economic power, in China, which weakened its ties with past after the Mao Revolution and is struggling to change its existing culture to contemporary one to support its economic power, in Istanbul/Turkey which has multilayered historical structure, the parametric form creation methods have been utilized for the museum building’s design. In this study, firstly, parametric design’s role method in memory space design will be discussed theoretically. Subsequently, it is aimed to embody the discussion over three pillars that deal with parametric design method with different approaches. In this sense, the Abu Dhabi Louvre Museum in UAE, which endeavors to create its social and cultural memory, the Yinchuan Museum in China, whose ties with the past have been weakened due to political reasons, and attempts to reconstruct its ancient culture with contemporary understanding of culture, and Istanbul City Museum, which uses parametric design method to present the stratified structure of its local and cultural memory, will be reviewed as model architectural structures of the study. One of the main objectives of the study is to show how parametric design is benefited in these three structures’ designs, how parametric-based form creation methods varies with these three structures, and how the relationship between cultural memory and space is configured differently with parametric methods. Additionally, in the context of the possibilities provided by parametric design, an analysis of the artefact-form relations with the environmental factors of all three museums and discussion of these relations are among the objectives of the study. In the study, descriptive survey method was pursued, and an interview was conducted with Alper Derinboğaz, architect of the Istanbul City Museum (ICM). In the conclusion, information use provided by the parametric design as a form source in formation of societies’ cultural memory, cultural-environmental adaptation possibilities and flexible design understanding were assessed, and the fact that non-euclid and topological form understanding strengthens the monumentality of museum structures were discussed. Keywords: memory, memory space, museum, parametric design.

Rapid development of automotive science and technology, promoting economic growth rapidly and improving human travel conditions greatly, led to serious ecological imbalance and environmental crisis. Such as oil resource depletion, urban traffic congestion, vehicle emissions, vehicles Garbage and so on. Thus, the current auto industry is becoming increasingly important for sustainable development. Concepts, such as eco-car, eco-car design, green manufacturing and technology, and ecological automobile industry chain, come into being. Ecological car design and manufacture will play a key role in building a sustainable home for human being. Eco-car and ecological vehicles (service) will become the leading product which will be liked by consumer in the future. As the primary design and manufacture methods of information era, CAD (computer aided design) technology will provide a reasonable efficient solution for ecological car design. Therefore, ecological car design based on CAD technology is not only the need for car companies to improve their product competitiveness, but also the need for sustainable development of post-industrial society and human society.

Facility layout planning (FLP) has substantial impact on the various aspects of a manufacturing system. FLP is typically performed for new shop floors. However, enterprises nowadays are often faced with the need to reconfigure the existing shop floor layouts to synchronize the shop floor operations with the constantly changing production targets. FLP tasks for existing shop floors are often small in scale, e.g., adding or removing a couple of machines, but complex to address since a wide range of criteria need to be incorporated and the presence of the existing facilities imposes critical constraints. Current FLP approaches are not efficient to handle these issues. The development of computer-aided design (CAD) technology has provided feasible solutions to bridge this gap. In this paper, an augmented reality (AR)-based hybrid approach is proposed which facilitates on-site layout planning and evaluation in real time. By integrating AR technology with the mathematical modeling technique, the proposed approach allows the users to augment the shop floor with the facilities to be laid out, model the existing facilities to obtain their geometric data, and define the criteria and constraints to formulate the problems as multi-attribute decision-making (MADM) models. Two planning methods are employed to solve the MADM models, namely, information-aided manual planning and analytic hierarchy process (AHP)–genetic algorithm (GA)-based automatic planning. During the planning process, the criteria and the constraints are assessed in real time to provide immediate evaluation and feedback to facilitate decision-making.

Aiming at car design, a parametric design method is proposed in this paper. There are two contents in this method, a novel parametric surface, a shape-adjustable automobile styling template, and a design method of integrating the two contents. The surface termed extended SQ-Coons surface constructed in this paper has the advantage of being fine adjusted while always interpolating at the given boundary curves, which is suitable for its application in automobile modeling design. Matching with the surface, a car model template built by multiple quadrilateral surfaces is proposed. The car models built by the template could achieve the parametric adjustability of all modeling features on the premise of maintaining G 1 continuity between subsurfaces. Finally, after the integration of the surface and the template, a whole set of parametric automobile surface modeling design method is proposed. In this method, the overall shape of the car body is determined through multi angle hand drawing, and curve control points, segmentation parameters, and shape parameters are used to adjust the detail modeling. The final results show that the novel surface and template proposed could be used to parametrically establish the vehicle models of various shapes and improve the design efficiency in the conceptual design stage.

The use of computer-aided design (CAD) and associated computer-aided engineering (CAE) in microelectronic design is well developed. CAD tools for design, simulation, and verification are in wide use. (For convenience, all tools, whether used for design, simulation, or verification, will be genetically referred to in this paper as “CAD”.) CAD toolsets have been developed for semi-custom design, for example, with gate arrays, making VLSI truly accessible to a broad range of customers. On the manufacturing side, computer-integrated manufacturing (CIM) tools for scheduling, lot tracking, and process control are routinely used.

This paper starts with a brief introduction of computer-aided product innovation design technology, and then expounds the application of computer-aided product design technology in computer-aided innovation in detail. Then it expounds the hardware design of computer-aided product innovation system; Then it analyzes the application of knowledge resources in the process of computer-aided product innovation design, including the comprehensive utilization of knowledge resources in computer-aided product innovation design and the obstacles to the application of knowledge resources in computer-aided product innovation design. This paper starts with a brief introduction of computer-aided product innovation design technology, and then expounds the application of computer-aided product design technology in computer-aided innovation in detail. Then it analyzes the application of knowledge resources in the process of computer-aided product innovation design, including the comprehensive utilization of knowledge resources in computer-aided product innovation design and the obstacles to the application of knowledge resources in computer-aided product innovation design. Finally, the paper analyzes the product innovation design based on computer-aided innovation technology, including the problems in the process of product innovation design, how to solve the problems encountered in the process of product design, the generation of solutions to the problems in the process of product design and the process of value analysis in product innovation design, in order to make product design stakeholders pay attention to the research and specific research and development process of computer-aided product innovation design system.

Recent developments in computer-aided design and engineering

In order to face the competition, traditional manufacturing companies are required to digitise the products by applying computer-aided design (CAD) for infusing innovative features in them. In the context of this realisation, a case study on digitising a traditional product by name 'desiccant compressed air dryer' (DCAR) by applying CAD technology which is presented in this paper was carried out. The procedures adopted to create the CAD models of six subassemblies of DCAR and its assembly by using a CAD software package namely Creo Parametric 2.0 are described. Then the advantage of digitising the traditional products using the CAD technology is described. The article is concluded by stating that utilising this kind of facilities that are available in CAD software packages will enable traditional manufacturing companies to become agile by quickly adding amazing features that will delight the customer.

An evaluation of the relationship between management practices and computer aided design technology

Computer-Aided Design and Applications is an international journal on the applications of CAD and CAM. It publishes papers in the general domain of CAD plus in emerging fields like bio-CAD, nano-CAD, soft-CAD, garment-CAD, PLM, PDM, CAD data mining, CAD and the internet, CAD education, genetic algorithms and CAD engines. The journal is aimed at all developers and users of CAD technology to ptovide CAD solutions for various stages of design and manufacturing. The journal publishes all about Computer-Aided Design and Computer-Aided technologies.

Digital design is an efficient way of implementing furniture concepts. Advanced tools for rendering have a considerable effect on increasing their visibility via the use of sophisticated software that simulates the final appearance of furniture using appropriate textures, colors and environment. Although color plays an important role in the product’s promotion, additional use of textures creates a more realistic appearance. The goal of this study was to develop an armchair using digital designing and physical prototyping. A variety of methodological and digital tools have been used to create a unique product, with effective application of 3D CAD and 3D printing technology in the design of an armchair. The present paper deals with the design of an armchair for children. Anthropometric shapes were used in the design process, thus digital sketches assisted in digitizing the armchair using an advanced Computer Aided Design (CAD) system. These models were enriched with colors and textures in order to convey the design concept, while providing a realistic view of the final solution. The prototype was built based on the CAD models created, in order to verify the incorporated specifications. Combining not only the effective geometry of the armchair but also its colorful appearance, a customized product for children was developed. Both the methodological and technological tools used supported the creative approach to the design of the armchair presented.

The structure design of drawing dies is a very compLicated and knowledge-intensive process. This paper describes a template-based parametric design system for drawing dies which adopt template as the die design knowledge base and instantiate it to complete the design of the main components of drawing die. Some key technologies such as the template technology, the parameterization technology and the top-down assembly design technique have been studied. The template for drawing dies is defined by using the "top skeleton" assembly structure, and the associative geometry-driven design and parameter-driven design of dies structure is reaLized by adopting WAVE technique and parameterized design method. The design process of template-based drawing dies structure is estabLished and the rapid design of structure is implemented by applying UG secondary development. At last, effectiveness of our method is verified by some examples.

With the development of science and technology, industrial design industry also in development, and at the same time, the industrial market in the design of the products of industry, the species diversity of interest requirement also become increasingly strict. In order to ensure that the industrial design in terms of quality and quantity can better development, computer aided design of the industry establish human-computer interaction, become the key factors of industry design. This paper puts forward based on computer aided the origin of the industrial design, and then puts forward computer-aided industrial design of man-machine interaction of the concept and characteristic, and human-computer interaction application in industrial design, and finally to the future development of human-computer interaction made planning and prospected.

Computer-Aided Design and Applications is an international journal on the applications of CAD and CAM. It publishes papers in the general domain of CAD plus in emerging fields like bio-CAD, nano-CAD, soft-CAD, garment-CAD, PLM, PDM, CAD data mining, CAD and the internet, CAD education, genetic algorithms and CAD engines. The journal is aimed at all developers and users of CAD technology to ptovide CAD solutions for various stages of design and manufacturing. The journal publishes all about Computer-Aided Design and Computer-Aided technologies.

Computer-Aided Design and Applications is an international journal on the applications of CAD and CAM. It publishes papers in the general domain of CAD plus in emerging fields like bio-CAD, nano-CAD, soft-CAD, garment-CAD, PLM, PDM, CAD data mining, CAD and the internet, CAD education, genetic algorithms and CAD engines. The journal is aimed at all developers and users of CAD technology to ptovide CAD solutions for various stages of design and manufacturing. The journal publishes all about Computer-Aided Design and Computer-Aided technologies.