• Title/Summary/Keyword: 시트프레임

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A Convergence Study through Durability Analysis due to the Number of Automotive Seat Frame Supports (자동차 시트 프레임 지지대 개수에 따른 내구성 해석을 통한 융합연구)

  • Choi, Gye-Gwang;Cho, Jae-Ung
    • Journal of the Korea Convergence Society
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    • v.9 no.8
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    • pp.155-160
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    • 2018
  • Automotive seat is a part to supply the convenience and safety of driver at driving. Recently, the seat has the role to protect driver from the outside impact or vibration and give the convenience except such a usage as chair. The design on structural function of the seat frame is important like the impact safety and durability. In this study, the seat is designed by adding one hollow rod to the part of seat back frame in order to enhance the structural safety and durability. This study was carried out by using CATIA and ANSYS as the design and analysis programs. As this study result through the structural and vibrational analyses, model 4 was seen to have the durability more superior than the other models. By utilizing this result, it is thought to be the useful material at designing the automotive seat frame with durability. It is possible to be grafted onto the convergence technique at the automotive seat frame and show the esthetic sense.

Structural Strength Analysis at Cushion Frame and Back Frame of Automotive Seat (자동차 시트 쿠션 프레임 및 백 프레임의 구조 강도 해석)

  • Kim, Sung-Soo;Kim, Key-Sun;Choi, Doo-Seuk;Park, Sang-Heup;Kim, Sei-Hwan;Cho, Jae-Ung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.11
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    • pp.4956-4962
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    • 2012
  • Among the various parts of automobile, automotive seat is the most fundamental item that ride comfort can be evaluated as the direct contact part with human body. Automotive seat must have the sufficient rigidity and strength at the same time with ride comfort. In this study, cushion frame and back frame at car seat are modelled with 3D. There are structural simulation analyses about 3 kinds of tests on torsion strength, vertical load strength and back frame strength. In the analysis result, the initial total deformation and the permanent total deformation has the maximum values of 5.4821 mm and 0.02539mm respectively at the torsion strength test of cushion frame. Total deformations at front and rear end parts of cushion frame become the values of 2.1159mm and 0.0606mm respectively at the test of vertical load strength of cushion frame. In case of more than this load, the maximum value of total deformation also becomes 3.1739mm. The maximum value of total deformation becomes 0.18634mm at 3 kinds of the strength tests on back frame. By the study result of no excessive deformation and no fracture cushion frame and back frame at automotive seat, the sufficient rigidity and strength to guarantee the safety of passenger can be verified.

A Study on CAE for the Design of the Seat Frame of Fiber-reinforced Composite Material (첨단섬유강화 복합재료 시트프레임 설계를 위한 CAE 연구)

  • 허용정;이순홍;최금호
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1995.10a
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    • pp.933-937
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    • 1995
  • The design of injection molded prlymeric parts has been done empirically, since it requires profound knowledge about the moldability and causal effects on the properties of the parts. This study shows CAE approach for the design of the seat frame of fiber-reinforced composite material in order to realize the concept os rationsl design for the productivity and quality of mold making. The knowledge-based CAE system is constructed by adding the knowledge-basw module for the design evaluation and appropriate CAE programs for mold design analysis in order to provied designers, at the initial design stage, with comprehensive process knowledge for the performance analysis and the design evaluation. A knowledge-based CAE system is a new tool which enables the concurrent design with integrated and balanced design decisions at the initial design stage of injection molding.

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A Structure Design of Multi-functional Stroller for a Separable Car seat Type (카시트 탈착형 다기능 유모차 구조설계)

  • Kang, Hoon-Hyo;Shin, Yun-Ho;Jeon, Euy-Sik
    • Proceedings of the KAIS Fall Conference
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    • 2007.11a
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    • pp.330-333
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    • 2007
  • 도로교통법에 의해 건교부 측에서 2006. 6. 1일부터 유아용 카시트에 관하여 시행령이 내려졌다. 때문에 국내의 유모차 및 카시트의 판매량이 증가하고 있다. 그러나 기존의 제품은 사용이 불편하고 사용 연령층의 폭이 좁고 기능면에 비하여 단가가 높다. 본 연구는 유모차/카시트 겸용을 주 연구 과제로 하였고, 이에 따른 유아용 카시트 탈착형 다기능 유모차의 프레임 폴딩구조 및 프레임의 경량화를 설계하고 유모차 검사기준에 따른 해석을 하였다.

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Structural Study of Automotive Seat Frame with High Tension Steel Plate Using Analysis and Experiment (해석과 실험을 이용한 고장력 강판으로 된 자동차 시트 프레임의 구조적 연구)

  • Kim, Key-Sun;Cho, Ho-Sun;Kim, Young-Chun;Cho, Jae-Ung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.1
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    • pp.27-31
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    • 2014
  • As research development of seat frame is being studied actively, the total deformation of seat frame made of high tension steel plate(HTSP) is examined in this study. The seat frame made of SPFC 980 t=2mm with HTSP is tested to obtain total deformation through repeated fatigue durability tester and total deformation is analyzed by simulation under the same condition as experiment. After analyzing by comparing the results of experiment and analysis, structural stabilities of seat frame models with SPFC 780 t=2mm and SPFC 780 t=1.5mm are investigated by FEM analysis on the basis of these results. And it is considered that which model is more suitable at commercial use can be found through this study result.

A Study on the Durability Design of an Automotive Seat Frame (자동차 시트 프레임 구조의 내구성 향상 설계에 관한 연구)

  • 우창수;조현직;구정서;권재도
    • Transactions of the Korean Society of Automotive Engineers
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    • v.12 no.4
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    • pp.50-57
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    • 2004
  • Structural analysis and fatigue tests have been performed to develop design and evaluation technologies of automotive seat frames. Under the back moment loading condition, the numerical simulation unveiled the maximum stress up to the yield strength at the side frame bracket. To measure the stresses under the test condition, strain gauges were attached to some weakest points of the side frames. the measured strains are in good agreements with the CAE results. On the other hand, some fatigue tests have been performed using the side frame bracket specimens made of various welding types to evaluate their durabilities. From the fatigue tests and the numerical analyses, it was recommended that the bracket welding position should be moved upward.

Investigation of the BSR Noise characteristics in Seat Cushion-frame with respect to Vibration Durability Test Using Multi-simulator (다축 가진기를 이용한 시트 쿠션 프레임의 내구 전후 BSR 진동특성 연구)

  • Choi, Ho-Il;Nam, Jae-Hyun;Kang, Jae-Young;Park, Jung-Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.8
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    • pp.4776-4783
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    • 2014
  • Many studies have examined the reduction of primary noise sources, but quality-related noise, such as BSR, is rarely studied. This study describes the quantitative BSR test method using a multi-axial simulator. The sine sweep test was conducted to detect the system resonance and its relation to BSR noise with high frequency. This method is applied to the seat frame with/without the vibration durability test. The results showed that the $1^{st}$ lateral resonance leads to higher BSR frequency noise. In addition, the reduction of the lateral mode system stiffness after the durability test results in a decrease in the BSR noise in sine sweep test mode.

Durability Analysis of Automotive Seat According to the Shape of Seat Back Frame (시트백 프레임의 형상에 따른 자동차 시트의 내구성 해석에 관한 연구)

  • Choi, Kyekwang;Cho, Jaeung
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.19 no.10
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    • pp.16-23
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    • 2020
  • Vehicle seats provide a comfortable ride for passengers by properly absorbing vibrations and shocks transmitted during driving. Vibration analyses on three models with different shapes were carried with the same material properties and constraint conditions. By varying the height of the seat-back, models 1, 2, and 3 were designed according to the inclined angle of the seat-back frame. Models 1, 2, and 3 were modeled with relatively simple designs using CATIA. The areas touching the buttocks of passengers show the most deformation. This work shows that seat durability and stability can vary depending on the shape of the seat design.

The Finite Element Analysis of Car Seat Frame According to The FMVSS Strength Test (FMVSS 강도테스트에 다른 자동차 시트프레임의 유한요소해석)

  • 이호용;임중연;범형택
    • Transactions of the Korean Society of Automotive Engineers
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    • v.7 no.6
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    • pp.241-247
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    • 1999
  • This study presents the structural analysis of car a seat frame by the finite element method. The load-deformation characteristics of seat frame are simulated according to the test requirements by FMVSS. Three dimensional modeling technique is applied to the components of the seat frame. The shell, solid , gap and rigid elements are employed to model the car seat frame assembly. Numerical results show that the recliner and kunckle plate are identified as the possible weak part of frame, and the results are well consistent with the experimental static load test. The current analysis model can provide useful informations to design a new car seat and can reduce the overall design cost and time.

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Analysis comparing on shape of seat back frame using FEM (FEM을 이용한 시트 백 프레임 형상에 대한 비교 해석)

  • Kim, Sung-Soo;Choi, Hae-Kyu;Kim, Sei-Hwan;Cho, Jae-Ung
    • Proceedings of the KAIS Fall Conference
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    • 2012.05b
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    • pp.565-568
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    • 2012
  • 승차감이나 안전에 관련된 부분 중 하나인 자동차 시트는 차량 주행시 전달되는 충격이나 진동을 적절하게 흡수하여 승객에게 안락성을 제공한다. 또한 이러한 여건을 만족시키면서 승객의 안전을 보장하는 충분한 강성과 강도를 가져야 한다. 자동차 시트는 2가지의 모델로 설계를 하고 구조 해석을 하였다. 그 결과, 시트 백프레임의 모델 (b)가 (a)보다 적은 변형량과 피로 수명을 보였고. 모델의 중앙에 해당되는 허리부분에서 가장 많은 변형량과 파손 가능성을 보였다. 고유진동수를 적용한 진동해석에서, 모델(a)의 경우는 모델의 바깥쪽에서 안쪽으로 변형이 되었고, 모델(b)의 경우는 모델의 안쪽에서 바깥쪽으로 변형이 되었다. 전반적으로 모든 면에서 모델(b)가 (a)보다 구조적으로 안전하다고 사료된다.

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