• Title/Summary/Keyword: Digital structure design

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A Study on methodology of physical Fabrication & reorganization of Epidermis in Space Design - Focused on reorganization of Epidermis, Fabrication - (공간디자인에서 디지털 표피 재 조직화, 물리적 구현 방법 연구 - 표피 재 조직화, 가공 중심으로 -)

  • Park, Jeong-Joo
    • Korean Institute of Interior Design Journal
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    • v.17 no.2
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    • pp.150-161
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    • 2008
  • It requires more close cooperation process and mediator for smooth communication in this industry structure where design and engineers are separated. The database of design integrates separate system and helps connection between organizations. The application category is utilized variously from formation to operation. Architectures addressed in this content as Frank Gehry and Nox are making differentiated design on the base of 3d digital methodology and using it widely from generation to fabrication. Especially they got to be free from the generative limit as it became available to analyse, digital surface organization, and realize the complex system form. Now more integrated and delicate works got to be affordable owing to various kinds of improved CNC, RP(rapid-prototype) machines, and architecture hardwares. With a linkage of software now at their disposal, architects can create a digital model of a building and all of its design elements, and in turn use this 3d information to construct actual building components using machines driven by CNC and other advanced manufacturing techniques. Digital technologies are enabling a direct correlation between what design and construction, thus bringing to the forefront the issue of the significance of information, the production, communication, application, and control of digital information in the industrial system. The central requirement is the clear, reliable, and consistent exchange of information among all parties involved in creating a given project.

Design on the System and OSID Structure for Managing Object-Based Seamless Digital Map (객체기반연속수치지도 관리를 위한 OSID 구조 및 시스템 체계 연구)

  • Jo, Jun-Rae;Shin, Sang-Cheol;Kwon, Chan-O;Jin, Heui-Chae
    • Spatial Information Research
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    • v.19 no.3
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    • pp.73-81
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    • 2011
  • A study about UFID for the management and administration of digital map has achieved much progress through the Korea National Geographic Information Institute. But it is ture that the content and process is too complicated to be applied. For overcoming this and to make harmonious management of the object based seamless digital map, we need to develop the method which has the unique feature identifier on the digital map for management and administration. So, we introduce OSID(Object-based Seamless digital map IDentifier) on the object based seamless digital map and apply OSID in the system to manage the digital map. This study is based on the OSID basic structure which is applied in object based seamless digital map and design the structure of OSID system to maintain and manage each feature of the object based seamless digital map.

Design of Optimal Digital IIR Filters using the Genetic Algorithm

  • Jang, Jung-Doo;Kang, Seong G.
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.2 no.2
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    • pp.115-121
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    • 2002
  • This paper presents an evolutionary design of digital IIR filters using the genetic algorithm (GA) with modified genetic operators and real-valued encoding. Conventional digital IIR filter design methods involve algebraic transformations of the transfer function of an analog low-pass filter (LPF) that satisfies prescribed filter specifications. Other types of frequency-selective digital fillers as high-pass (HPF), band-pass (BPF), and band-stop (BSF) filters are obtained by appropriate transformations of a prototype low-pass filter. In the GA-based digital IIR filter design scheme, filter coefficients are represented as a set of real-valued genes in a chromosome. Each chromosome represents the structure and weights of an individual filter. GA directly finds the coefficients of the desired filter transfer function through genetic search fur given filter specifications of minimum filter order. Crossover and mutation operators are selected to ensure the stability of resulting IIR filters. Other types of filters can be found independently from the filter specifications, not from algebraic transformations.

A Design of Multi-tier Structure Digital Content Distribution System based on Public Key (공개 키 기반의 계층 구조를 갖는 디지털콘텐트 분배 시스템의 설계)

  • Ko, Il-Seok;Na, Yun-Ji;Cho, Dong-Wook
    • The KIPS Transactions:PartA
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    • v.11A no.2
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    • pp.175-180
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    • 2004
  • Generally, as for the multimedia high quality contents, an illegality facsimile is possible without a damage of a quality. Also a distribution of contents duplicated illegality in an Internet is giving a great economic loss to digital contents provider. Therefore, a study for security and efficient distribution of digital contents is required. The most important issues in a design of digital contents distribution system are a user convenience, an execution speed and a security. In this study, we designed digital contents distribution system that used a web caching technology and an encryption/decryption technique on hierarchical structure. The proposed system was the digital contents distribution system that improved a security and execution speed, a convenience of a user. Also it verified performance superiority of a proposed system by an examination.

Study on the Textile Structural Design using SLS 3D Printing Technology -Focused on Design of Flexible Woven Fabric Structure- (SLS 방식의 3D 프린팅 기술을 활용한 직물구조적인 디자인설계 연구 -유연성 있는 직조구조 직물설계를 중심으로-)

  • Song, HaYoung
    • Journal of Fashion Business
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    • v.23 no.3
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    • pp.67-84
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    • 2019
  • Since the early 2000s, various fashion design products that use 3D printing technology have constantly been introduced to the fashion industry. However, given the nature of 3D printing technology, the flexible characteristics of material of textile fabrics is yet to be achieved. The aim of this study is to develop the optimal design conditions for production of flexible and elastic 3D printing fabric structure based on plain weave, which is the basic structure in fabric weaving using SLS 3D printing technology. As a the result this study aims to utilize appropriate design conditions as basic data for future study of flexible fashion product design such as textile material. Weaving structural design using 3D printing is based on the basic plain weave, and the warp & weft thickness of 4mm, 3mm, 2mm, 1.5mm, 1mm, and 0.7mm as expressed in Rhino 6.0 CAD software program for making a 3D model of size $1800mm{\times}180mm$ each. The completed 3D digital design work was then applied to the EOS SLS Machine through Maker ware, a program for 3D printer output, using polyamide 12 material which has a rigid durability strength, and the final results obtained through bending flexibility tests. In conclusion, when designing the fabric structure design in 3D printing using SLS method through application of polyamide 12 material, the thickness of 1 mm presented the optimal condition in order to design a durable digital textile structure with flexibility and elasticity of the 3D printing result.

MANAGEMENT OF DIGITAL DESIGN DATA IN BUILDING DESIGN AND CONSTRUCTION UNITS

  • Linas Gabrielaitis ;Romualdas Bausys
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.725-730
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    • 2005
  • The problem of managing digital design data including drawings, specifications and other technical data in building design and construction units is a real challenge, especially when there is a need to structure the design information across building design companies. The main difficulty in this information management is the shortage of unified rules (or standards) on how the digital design data should be gathered, archived, and preserved in the most efficient way for building design and construction units. The most important issue, which addressed in this work, is the standardized reference of all design data definitions.

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A Design of Digital Filter IC Using a Semi-Custom Design Method (Semi-Custom 방식을 이용한 통신용 디지탈 필터의 집적회로 설계)

  • Lee, Kwang-Youb;Kim, Bong-Ryul;Lee, Moon-Key
    • Proceedings of the KIEE Conference
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    • 1987.07b
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    • pp.850-853
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    • 1987
  • A VLSI digital filter design using a semi-custom method is described. The digital filters composed of TDM/FDM Transmultiplexer are designed. Using the polyphase network approach a filter bank composed of only all-pass digital filter sections was designed. The use of all-pass filters as basic building blocks is shown to provide a transmultiplexer structure that has low computational requirements, low quantization noise, and high modularity. The silicon compiler systems is used to reduce the design time and increase the credibility of designed filters. A design of 1st order and 2nd order all pass filters is done using CMOS 2um N-well double metal cell.

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Design of a Recursive Structure-based FIR Digital Filter (재귀 구조에 기반한 FIR 디지털 필터의 설계)

  • Jae-Jin Lee;David Tien;Gi-Yong Song
    • Journal of the Institute of Convergence Signal Processing
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    • v.5 no.2
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    • pp.159-164
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    • 2004
  • This paper proposes a new digital filter implementation which adopts an identical structure at both behavioral and logic level in top-down design. This methodology is based on the observation that multiplication is a form of convolution and carrying, and therefore multiplication is implemented with the same structure as that of a convolution in a recursive manner at the logic level. In order to demonstrate a recursive structure-based FIR digital filter, we select L-tap transposed and systolic FIR filters, and implement them to have a single structure. The proposed filter design becomes regular and modular because of the recursive adoption of a single structure for convolutions, and is very compact in that it needs only two 1-bit I/O ports in addition to significant improvement on hardware complexity without time penalty on the output sequence.

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A Study on Skin Tendency as New Design Phenomena in Contemporary Environments (새로운 조형현상으로서의 표피적 경향에 관한 연구)

  • 서정연
    • Korean Institute of Interior Design Journal
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    • no.40
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    • pp.26-33
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    • 2003
  • Contemporary architecture has two different movements that one is the utilization of digital technology and the other is the inclination to nature. After deconstructivism in architecture, the tendency of design shows the fusion between digitalism and organicism and as a consequence the phenomena of 'skin expression' has emerged which can be thought as 'organic digitalism' or 'digital organicism'. The definition of skin tendency in environmental design is the design of nature based on the technology. As a result, the surface becomes the design issue compared to structure and the momentum for new aesthetic value. There are post-structuralism, complex system theory and the organic architecture as theoretical background for the tendency of skin expression. Specially the ideas of post-structural philosophy has effected deeply to the formation of its movement and also offered the theoretical nutrition for digital architecture. The characteristics of the skin tendency can be analyzed as topological transformation, smooth continuum, deterritorialization, ecological response system, and tactility. These design characteristics has combined with conventional material and design vocabulary to transform and develope new spatial conception.