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머리 지지대 동적 시험들에 대한 평가 방법 및 상관 관계 연구
오세창(Se-Chang Oh),신현학(Hyun-Hack Shin),이재우(Jae-Woo Lee) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The IIWPG (International Insurance Whiplash Prevention Group) dynamic test and FMVSS (Federal Motor Vehicle Safety Standard) 202a dynamic test evaluate occupant's neck injury about head restraint at the low speed rear-end car accident. However two tests have the different to acceleration pulse, test procedure, dummy type and injury criteria for evaluation at sled. The IIWPG dynamic test has the injury criteria such as T1 (Thoracic 1) acceleration, head contact time, neck shear (Fx), and neck tension (Fz). And FMVSS 202a dynamic test has the injury criteria such as HIC₁?, chest to head rotation angle. This paper compared test procedure, head restraint's evaluation method of IIWPG head restraint dynamic test and FMVSS 202a dynamic test. And as the two tests perform at sled, we compared interrelation of the injury criteria such as Head X Acceleration, T1 Acceleration and Upper Neck Force which are acquired in common.
후방 추돌 시 머리지지대 위치에 따른 능동형 머리지지대 성능의 시험적 고찰
오형준(Hyungjoon Oh),유혁진(Hyukjin Yoo),김승기(Seungki Kim) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
Whiplash injuries are minor injury among occupants in low rear-end collision. However, rear-end collision has been caused social problem as occupant injury and premiums in connection with whiplash injuries. So, in order to solve this problem, many manufactures have been studying to make effective seat and head restraints to protect neck from whiplash injuries. An active head rest in the event of a rear collision It moves forward to close the gap between head of occupants and the head rest to prevent whiplash. In this paper, we conducted KNCAP dynamic assessment test to compare efficiency of active head restraints by changing backset dimension. As a result, we could find out difference between active head restraints and in-active head restraints on backset dimension.
장형진(Hyungjin Chang),송진화(Jinhwa Song),석주식(Jusik Suk),이상률(Sangyul Lee),김규현(Gyuhyun Kim),권인식(Insik Kwon) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In 1999 the New Car Assessment Program (NCAP) in Korea was initiated with the primary purpose of providing consumers with a measure of the relative safety potential of vehicles in frontal crashes. The side impact test was added to the Korean NCAP in 2003. The eight small passenger cars were evaluated and the star ratings for the side crashes were reported. The star ratings for the injury severities are estimated using conversion points from the head injury criterion (HIC) and the maximum value of the chest deflection, the viscous criterion, the abdominal force and the pubic symphysis force. According to the test results, the dominant factors for the star ratings are the chest injuries such as the chest deflection and the viscous criterion.
윤용원(Yong Won Yun),박경진(Gyung Jin Park) 대한기계학회 2014 大韓機械學會論文集A Vol.38 No.9
차대 보행자 교통사고는 발생빈도에 비하여 사망률이 매우 높은 특징이 있다. 전세계적으로 정부 및 보험사에서는 보행자 보호를 위한 새로운 안전기준을 수립 및 강화하는 추세이다. 보행자 보호 성능을 향상시키기 위하여 한국정부는 2007 년부터 신차안전도평가에서 보행자 안전을 평가하고 있다. 보행자 보호 성능은 점진적으로 향상되었으나 여전히 미흡한 상태이다. 전개형 후드 및 보행자 에어백 등으로 구성되어 있는 보행자 보호 시스템은 보행자 보호를 위한 대안이 될 수 있다. 보행자의 머리상해 기준값을 감소시키기 위하여 새롭게 정의된 설계방법론을 바탕으로 보행자 에어백 설계 절차를 제안하였다. 제안된 설계방법론을 실용적인 측면에서 검토하였고 보행자 보호 시스템의 제작에 적용이 가능하다. Vehicle-into-pedestrian traffic accidents show a very high mortality rate compared to their frequency of occurrence. Throughout the world, governments and insurance companies tend to establish and implement new safety standards for pedestrian protection. In order to improve the performance of pedestrian protection, the Korean government has evaluated the pedestrian safety of vehicles under the Korea New Car Assessment Program (K-NCAP) since 2007. The pedestrian protection performance has improved gradually, but it remains insufficient. A pedestrian protection system consisting of a hood lift system and a pedestrian airbag can be a solution to pedestrian safety. A pedestrian airbag design procedure based on a newly defined design scenario is introduced to reduce the head injury criterion of pedestrians. The proposed design scenario is discussed from a practical viewpoint and applied to manufacture pedestrian protection systems.
임재문(Jae Moon Lim),김규현(Gyuhyun Kim),송진화(Jinhwa Song),석주식(Jusik Suk),황덕수(Duksoo Hwang) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In 1999, Korean New Car Assessment Program(KNCAP) was initiated with the primary purpose of providing consumers with a measure of the relative safety potential of vehicles in frontal crashes. The side impact test was added to KNCAP in 2003. Nine compact passenger cars, four medium passenger cars, three SUVs and two Vans were evaluated and the star ratings for the side impact tests have been reported. According to the test results, the dominant factor for the good star rating is the rib deflection of the EuroSID1. All SUVs and Vans with R-point over 700 ㎜ get five stars.
AE-MDB를 이용한 측면충돌안전성 평가시 인체상해 특성에 관한 연구
김도엽(DoYup Kim),장형진(HyungJin Chang),이창석(Changseok Lee),김창현(Changhyun Kim),이재완(JaeWan Lee),김규현(GyunhYun Kim) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
The domestic car to car accident Perpendicular to side car crash in a car accident case, the proportion was the highest. Safety regulations and New Car Assessment Program tests to ensure safety in side impacts tend to strengthen regulatory requirements. Side Pole Impact of the road, trees and utility pole, etc. aspects of vehicle side impact crash tests and more intensive deformation and impact energy after the collision mitigation occurs due to a lack of space and will cause fatal injury to the driver. Being studied in this paper AE-MDB side impact test and Side Pole test change the body injury results data analysis and evaluation methods KNCAP hatch side impact applied to the phase comparison should investigate.
차륜형 전투차량 전복 시승무원 안전성 확보를 위한 시뮬레이션 연구
이경수(Gyung-Soo Lee),정의진(Ui-Jin Jung),박경진(Gyung-Jin Park) 대한기계학회 2014 大韓機械學會論文集A Vol.38 No.4
차륜형전투차량은 보병부대의 전투력 강화와 기동성 향상을 목적으로 운용하는 군용차량이다. 전투차량은 운용 특성상 험난한 지형의 주행이 불가피하고 높은 무게 중심으로 인해 전복 사고의 위험성이 크다. 이러한 이유로 전투차량의 내부는 전복 사고에 따른 승무원의 안전성을 고려하여 설계해야 할 필요가 있다. 하지만 실제 차량을 이용한 시험은 현실적으로 많은 어려움이 있다. 따라서 본 연구에서는 차륜형전투차량의 전복 시험을 모사하여 승무원의 안전성을 측정하기 위한 컴퓨터 시뮬레이션 및 모델링 방법에 관한 연구를 수행한다. 본 논문의 연구 범위는 전투차량 전복 시험 조건, 전투차량 유한요소 모델링, 유한요소 인체 더미의 적용 방법, 전복 시험 시뮬레이션, 시뮬레이션 적용 시 발생 가능한 문제와 해결 방안 제시, 인체 상해치 계산 및 평가를 포함한다. A wheeled armored vehicle is a military vehicle that has been developed to enhance combat capabilities and mobility for the army. The wheeled armored vehicle has a high center of gravity, and it operates on unpaved and sloped roads. Therefore, this vehicle has a high risk of rollover crashes. To design the interior of the military vehicle, the crew’s safety during rollover crashes is an important factor. However, actual vehicle tests for design are extremely expensive. In this paper, nonlinear dynamic analysis is performed to simulate the rollover crashes and the passenger injury is assessed for a wheeled armored vehicle. The scope of this research is the rollover condition, FE modeling of the wheeled armored vehicle and the dummy, arrangement of dummies, assessment of passenger injuries, and simulation model for rollover crashes.