• Title/Summary/Keyword: 에어백 단품

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Finite Element Modeling of Folded Airbag and Analysis of Deployment Process (운전석 및 조수석 에어백 단품의 유한요소 모델링과 전개 과정 해석)

  • 김헌영;이상근;신윤재
    • Transactions of the Korean Society of Automotive Engineers
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    • v.4 no.6
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    • pp.236-246
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    • 1996
  • The deployment process of fully folded airbag is analyzed. The methodology of finite element modeling is presented for flat driver side airbag and 3-dimensional passenger side airbag. 'Initial metric option' is used to model 3-dimensional passenger side airbag before deployment. The deformed shapeds and pressure waveforms inside cushion evaluated from simulation are compared to the test results. The agreements between the simulation and the experiments are satisfactory, and the results of simulation are confirmed to be applied to the design of airbag module.

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Analyses of Deployment Process and Sled Test for Designing Airbag Module (에어백 단품설계를 위한 전개과정과 승객거동해석)

  • 김헌영;이상근;신윤재
    • Transactions of the Korean Society of Automotive Engineers
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    • v.6 no.2
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    • pp.118-128
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    • 1998
  • Finite element analyses are carried out to provide results usable in the design of airbag module that consists of inflater, cushion, cover, mounting plate, etc. In the first phase, a deployment process of airbag module is analyzed to evaluate the pressure waveform of developed airbag and deployment characteristics, and is compared with the test results. Interaction between head form and inflated airbag module is investigated in the second phase. In the last stage, sled test with rigid dummy, airbag midule, driving system and car interior part are simulated to investigate the influence of airbag design factor on the behavior of dummy with seat belt. The procedures can be provided as a guideline for airbag module design and improvement of airbag module performance.

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Effect of Air Bag and Seat Belt on Driver's Safety (에어백과 안전벨트가 운전자 안전에 미치는 영향에 관한 연구)

  • 유장석;장명순
    • Journal of Korean Society of Transportation
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    • v.21 no.2
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    • pp.7-16
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    • 2003
  • To minimize the death and injury by a collision, the installation of an air bag is recommended as a mandatory practice together with the wearing of the seat belt. By using simulated collision experiments, this research focused on the effect of an air bag and seat belt on the driver safety. The vehicle deceleration characteristics were obtained from impact experiment. LSDYNA, a software program for vehicle collision analysis, and MADYMO. a software program for driver motion after collision, were used for simulated experiment. Four cases such as air bag installed and seat belt wearing (case A), air bag installed but seat belt not wearing (case B), air bag not installed but seat belt wearing (case C), air bag not installed and seat belt not wearing (case D) were analyzed. The impact of acceleration on the injury of driver's head was analyzed by Head Injury Criterion (HIC) as well. It was found that having air bag and wearing seat belt effectively reduced driver's head injury about 52.9% to 70.5% compared with the case of having neither air bag nor wearing seat belt.

Study of Examples for Air Bag Non-deployment Including Rear Collision and Failure Phenomenon by Damage of Control Parts in Vehicle Air Bag (자동차 에어백의 제어부품 불량에 의한 고장현상 및 후방 추돌에 관련된 에어백 미전개에 대한 사례 연구)

  • Lee, Il Kwon;Kim, Young Gyu;Moon, Hak Hook
    • Journal of the Korean Institute of Gas
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    • v.16 no.6
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    • pp.102-106
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    • 2012
  • The purpose of this paper is to study the failure cases in relation to system of Air Bag in vehicle happened in the field. In the first example, it was separated the soldering parts connected the wire pin between air bag module and clock spring of air bag. Whenever the pin shake by the car's vibration, the driver verified the malfunction phenomenon appeared air bag warning lamp on instrument panel in front of driver's seat. in car inside room. The second example, it verified the warning lamp lighting phenomenon of air bag by produced the circuit plate non-contacting of single an element in air bag electronic control unit. The third example, it verified the light of air bag warning indicator lamp by separated with soldering parts connecting inner pin and resistance terminal of seat belt pretensioner using passenger seat. The fourth example, when the passenger car crash a back of truck, the former bumper get jammed under the latter as the roof height of car low less than that. Therefore, the impact of Car's collision verified that don't transfer with body frame of vehicle because of no attachment impact sensor in it.