저자명 김진영 
년도 1997 
The coil spring plays an important role in absorbing the external forces and energy with deformation and releasing them after unloading. The coil spring in automobiles serves as a component to suspend the body of the automobiles. Since the coil spring requires to endure the several kinds of heavy loads without any damages during the all life-time, it is very important to obtain the exact deformation characteristics with stress distributions of the coil spring. The analysis of coil springs can be carried out with analytic solutions such as Wahl*s equations based on the fundamental elasticity theory and numerical solutions by finite element method using continuum elements or beam elements. In this study, computerized multi-level substructuring methods were developed and applied to analysis of springs. The purpose of substructuring methods is to reduce capacity of computer memory and computational time by multiple level reduction of the degrees of freedom of large size problems which are modeled by continuum elements. The finite element program developed is applied to some simple problems of tension, torsion, and bending of a bar with rectangular or circular cross section. The purpose of examples is to verify the accuracy and efficiency of the multi-level substructuring method schemes. The applications to the coil spring analysis demonstrate the validity of the multi-level substructuring method and the efficiency in computing time and memory.

번호 제목 저자명 날짜 조회 수
29 Dynamic Tensile Tests of Auto-body Steel Sheets with the Variation of Temperature for Material Constitutive Equations (차체용 강판의 온도에 따른 동적 인장시험 및 물성 구성방정식에 관한 연구) [1] 이희종  2006.03.07 5704
28 The crashworthiness evaluation of asymmetric hat-type rectangular tube by static and dynamic crush tests (동적 압궤 실험을 통한 충돌 성능 평가 ) 김진성  2005.11.29 8437
27 Study on the characterization of the dynamic material properties of sheet metal for auto-body considering the pre-strain effect(예비변형률 효과를 고려한 차체용 박판의 동적 물성 특성 연구) 김석봉  2005.11.29 5285
26 Design optimization of auto-body members for crashworthiness enhancement with the response surface method (반응표면법을 이용한 차체 부재의 충돌성능 향상을 위한 설계 최적화) 나승렬  2005.11.29 5587
25 Adaptive Time-stepping Procedure for Dynamic Limit Analysis (동적 극한해석을 위한 적응적 시간간격기법) 이종섭  2005.11.29 4656
24 Efficiency enhancement of sheet metal forming analysis with a mesh regularization method (격자 정방형화 방법을 이용한 박판 성형해석의 효율개선) 윤종헌  2005.11.29 4791
23 Elastic-plastic Finite Element Analysis of Drawbead Forming and Drawing Processes for Equivalent Boundary Conditions in Sheet Metal Forming(드로우비드 성형과 드로잉 공정의 탄소성 유한요소 해석 및 박판 성형공정에서의 등가 경계조건) [1] 박종세  2005.11.29 6515
22 Tension Test and Specimen Design with the Finite Element Method at Intermediate Strain Rates(준고속 변형률 속도에서의 인장실험 및 유한요소법을 이용한 박판 인장시편의 형상결정) 송정한  2005.11.29 4654
21 Optimization of the roller levelling process for Al7001 T9 pipes with the Finite Element Method and Taguchi Method(유한요소법과 다구찌 방법을 이용한 Al 7001 T9 파이프의 롤러교정 공정 최적화) 허진혁  2005.11.29 14617
20 Finite Element Analysis and Process Parameter Design for the Tension Levelling of Metallic Strips (금속판재의 인장교정에 대한 유한요소 해석 및 공정변수 설계) 박상래  2005.11.29 6832
19 Three-dimensional Finite Element Analysis of Air Springs with Fiber-reinforced Rubber Composites (섬유강화 고무복합재 공기스프링의 3차원 유한요소 해석) 신진원  2005.11.29 4378
18 Experiment and Finite Element Analysis of the Formation of Adiabatic Shear Band in Sheet Metal (박판금속의 단열전단밴드 생성에 대한 실험 및 유한요소 해석) 임지호  2005.11.29 4518
17 Characterization of the Mechanical Properties of Fiber-reinforced Rubber-matrix Composite Materials (섬유보강 고무모재 복합재료의 기계적 물성치 결정) 안형택  2005.11.29 6145
16 Preform Design for Net Shape Sinter-forging of Powdered Magnets with Curved Shape (곡면 형상을 가지는 분말 자석의 정형 가공을 위한 예비성형체의 설계) 김승호  2005.11.29 4692
15 Analyisis of Adiabatic Shear Band Formation by an Elasto-Plastic Finite Element Method with Explicit Time Integration (외연적 시간적분 탄소성 유한요소법에 의한 단열전단밴드의 해석) 조상순  2005.11.29 7742
14 Self contact analysis of rubber-boots for C. V. joints by a 3-D finite element method (3차원 유한요소법을 이용한 등속조인트 고무 부트의 자체접촉해석) 이형욱  2005.11.29 4332
13 Design of process parameters in axisymmetric multi-step deep drawing by a finite element inverse method (유한요소 역 해석을 이용한 축대칭 다단계 박판성형에서의 공정변수 설계에 관한 연구) 조천수  2005.11.29 4460
» Finite element stress analysis for a coil spring with a multi-level substructuring method(다단계 부분구조법을 이용한 코일스프링의 변형에 관한 유한요소 해석) [1] [1] 김진영  2005.11.29 6660
11 Electrothermal analysis of large electric current systems by finite element method (유한요소법을 이용한 대전류 시스템의 전열해석 ) 강우종  2005.11.29 5269
10 Plastic collapse analysis of hollow pipe structures by finite element limit analysis (유한요소 극한해석을 이용한 중공 파이프 구조물의 소성 붕괴 거동 해석 ) 서종관  2005.11.29 4394