• 제목/요약/키워드: Structural deformation

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구조적 의상에 나타난 데포르마시옹의 특성 분석 - 2008 SS~2019 FW 오뜨꾸띄르를 중심으로 - (Analysis of characteristics of Deformation in structural fashion - With a focus on haute couture collections in 2008 S/S ~ 2019 F/W -)

  • 이소영
    • 한국의상디자인학회지
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    • 제22권3호
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    • pp.63-74
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    • 2020
  • Modern clothes are part of formative arts and express experimentation and originality. This tendency is especially prominent in structural fashion. This study set out to analyze structural fashion in various aspects, examining and analyzing the expressive and formative characteristics of Deformation and contribute to the development of creative fashion design. The approach of peer debriefing was used with three fashion experts to identify structural clothes in the women's haute couture collections from a total of 24 seasons from S/S of 2008 to F/W of 2019. The clothes with Deformation characteristics were then identified to analyze expressive and formative characteristics. The expressive characteristics of Deformation in structural clothes were exaggeration, distortion, and recombination. Exaggeration was expressed with exaggerated sizes, forms, and excessive use. Distortion was expressed with distorted forms and functions and through optical illusions. Recombination was expressed with the recombination of forms and roles. The formative characteristics of Deformation were maximum, playfulness, and unfamiliarity. The study connected the expressive characteristics to the formative ones and examined them simultaneously, finding that "distortion" and "playfulness" represented the expressive and formative characteristics, respectively. The characteristics of Deformation are expressed in various ways in structural fashion. If they are considered, they will make valuable contributions to creative ideas.

Deformation performance analysis of thin plates based on a deformation decomposition method

  • Wang, Dongwei;Liang, Kaixuan;Sun, Panxu
    • Structural Engineering and Mechanics
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    • 제84권4호
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    • pp.453-464
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    • 2022
  • Thin plates are the most common spatially stressed members in engineering structures that bear out-of-plane loads. Therefore, it is of great significance to study the deformation performance characteristics of thin plates for structural design. By constructing 12 basic displacement and deformation basis vectors of the four-node square thin plate element, a deformation decomposition method based on the complete orthogonal mechanical basis matrix is proposed in this paper. Based on the deformation decomposition method, the deformation properties of the thin plate can be quantitatively analyzed, and the areas dominated by each basic deformation can be visualized. In addition, the method can not only obtain more deformation information of the structure, but also identify macroscopic basic deformations, such as bending, shear and warping deformations. Finally, the deformation properties of the bidirectional thin plates with different sizes of central holes are analyzed, and the changing rules are obtained.

Structual Design of a Building with High Damping Provided by Deformation Amplification Mechanisms and Tuned Viscous Mass Damper

  • Mizuki Shigematsu;Takaaki Udagawa;Satoru Nagase
    • 국제초고층학회논문집
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    • 제12권3호
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    • pp.215-224
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    • 2023
  • This paper presents the structural design and response control system of the JR MEGURO MARC building, a 70 meters high office building with steel structure located in Tokyo (Figure 1). In order to achieve high earthquake resistance and useable office space, this building integrates a centralized response control system with deformation amplification mechanisms and tuned viscous mass dampers on the lower floor. Moreover, buckling-restrained braces (BRB) are installed on the upper floors to increase the effectiveness of centralized response control system and to reduce damage of the main frames in the event of a major earthquake. It features an efficient centralized response control system by amplifying the deformation of the dampers without creating a soft story.

Probabilistic analysis of tunnel collapse: Bayesian method for detecting change points

  • Zhou, Binghua;Xue, Yiguo;Li, Shucai;Qiu, Daohong;Tao, Yufan;Zhang, Kai;Zhang, Xueliang;Xia, Teng
    • Geomechanics and Engineering
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    • 제22권4호
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    • pp.291-303
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    • 2020
  • The deformation of the rock surrounding a tunnel manifests due to the stress redistribution within the surrounding rock. By observing the deformation of the surrounding rock, we can not only determine the stability of the surrounding rock and supporting structure but also predict the future state of the surrounding rock. In this paper, we used grey system theory to analyse the factors that affect the deformation of the rock surrounding a tunnel. The results show that the 5 main influencing factors are longitudinal wave velocity, tunnel burial depth, groundwater development, surrounding rock support type and construction management level. Furthermore, we used seismic prospecting data, preliminary survey data and excavated section monitoring data to establish a neural network learning model to predict the total amount of deformation of the surrounding rock during tunnel collapse. Subsequently, the probability of a change in deformation in each predicted section was obtained by using a Bayesian method for detecting change points. Finally, through an analysis of the distribution of the change probability and a comparison with the actual situation, we deduced the survey mark at which collapse would most likely occur. Surface collapse suddenly occurred when the tunnel was excavated to this predicted distance. This work further proved that the Bayesian method can accurately detect change points for risk evaluation, enhancing the accuracy of tunnel collapse forecasting. This research provides a reference and a guide for future research on the probability analysis of tunnel collapse.

평 블록의 용접변형 제어 (Weld Induced Deformation Control of Panel Blocks)

  • 이주성
    • 한국해양공학회:학술대회논문집
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    • 한국해양공학회 2000년도 춘계학술대회 논문집
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    • pp.205-209
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    • 2000
  • This paper is concerned with development of the production-oriented structural design information system to predict the inaccuracy level of panel blocks and to consider the result at the structural design stage. Emphasis is placed on that the inaccuracy during production should likely be considered at the structural design stage to reduce the undesirable adjusting work and therefore to enhance the productivity. The primary goal of the present study is to consider the productivity and the efficient design at the same time for a high quality product of panel block. Usefulness of the developed information are illustrated through some application examples.

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금형변형을 고려한 성형 CAE에서의 스프링백 예측정확도 향상 (Improvement in Prediction Accuracy of Springback for Stamping CAE considering Tool Deformation)

  • 박정수;최현준;김세호
    • 소성∙가공
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    • 제23권6호
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    • pp.380-385
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    • 2014
  • An analysis procedure is proposed to improve the prediction accuracy of springback as well as to evaluate the structural stability of the tooling used for fabricating a side sill part from UHSS. The analysis couples the stamping analysis and the subsequent analysis of the tool structural. The deformation and stress results for the tool structure are obtained from the proposed analysis procedure. The results show that the amount of deformation and stresses are so high that the tool structure must be reinforced and the tooling design must consider structural stability. Springback is predicted with CAE in order to compare the prediction accuracy between the given tool geometry and the geometry from the structural analysis. The simulation results with the deformed tool can predict the experimental springback tendency accurately.

일상 환경변화를 고려한 구조물 진동피해의 수준 평가 (Estimation of Structural Damage by Blasting Vibration Considering the Environmental Crack Deformation)

  • 정지문;양형식
    • 한국지반공학회논문집
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    • 제15권5호
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    • pp.57-64
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    • 1999
  • 근거리 발파에 의한 구조물 피해의 임계진동수준을 결정하기 위해 구조물의 기존 균열 변형과 지반 진동수준을 계측하였다. 구조물에 대한 발파진동의 피해를 평가하기 위해 일상적인 환경변화에 의한 기존 균열의 최대 변형량을 고려한 새로운 기준을 제시하였다. 본 실험에서 사용된 2 채의 농어촌 조적조 가옥에 대한 시험 결과를 보면, 구조물에 피해를 유발하기 위한 진동 수준은 설계 기준보다 훨씬 더 큰 수준임을 알 수 있다.

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금형 변형을 고려한 자동차 펜더패널의 성형해석 (Forming Analysis of Automotive Fender Panel Considering Die Deformation)

  • 송민재;금영탁
    • 소성∙가공
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    • 제15권5호
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    • pp.387-394
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    • 2006
  • In order to see the effect of die deformation on the forming analysis of sheet metals, the draw-ins, strains, and spring-backs of an automotive fender panels are numerically simulated by considering the die deformation found by the simultaneous structural analysis of press and dies. By coupling the forming analysis and the structural analysis, the die deformation is simultaneously taken into account in the forming process. Furthermore, for the consideration of load difference transferred among the upper die, punch, and blank holder due to the changes in sheet thickness, the gap elements are employed instead of the blank sheet in the structural analysis. The numerical simulation results of an automotive finder draw panel are compared with the measurements. The comparison of the forming and spring-back analysis results between the rigid die and the deformed die shows that the consideration of tool deformation can predict more accurately the forming and spring-back of sheet metals.

Effects of shear deformation on the effective length of tapered columns with I-section for steel portal frames

  • Li, Guo-Qiang;Li, Jin-Jun
    • Structural Engineering and Mechanics
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    • 제10권5호
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    • pp.479-489
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    • 2000
  • Based on the stiffness equation of the tapered beam element involving the effects of axial force and shear deformation, numerical investigations are carried out on elastic instability for web-linearly tapered columns with I-section of steel portal frames. Effects of shear deformation on the effective length of the tapered columns with I-section are studied. An efficient approach for determining the effective length of the tapered portal frame columns considering effects of shear deformation is proposed.

용접순서와 자중이 소조립 부재의 용접변형에 미치는 영향 (Effect of Welding Sequence and Self-Weight on Welding Deformation in Ship's Small Component Fabrication)

  • 박정웅;한명수
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 2005년도 춘계 학술발표회 논문집
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    • pp.601-606
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    • 2005
  • Welding deformations are affected by various factors. This research investigates effects of welding sequence and self-weight on welding deformation. According to the results by equivalence load method, magnitude of welding deformation with self-weight is about twice one without self-weight on parallel weld path component. But welding deformation with the components used in this research are not affected by welding sequence

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