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측면 모의충돌 시험을 통한 WorldSID 흉부 및 복부 상해 분석
오형준(Hyungjoon Oh),김승기(Seungki Kim),김성원(Sungwon Kim),천승무(Seungmoo Chun) 한국자동차공학회 2013 한국자동차공학회 학술대회 및 전시회 Vol.2013 No.11
The WorldSID 50<SUP>th</SUP> new dummy has a more humanlike response and improved overall biofidelity over the existing side impact dummy. The WorldSID new dummy will be used for side impact instead of the ES-2(re). Side airbag is one of the most effective devices to protect occupant from side impact crash. In this study, we conducted side impact sled test to compare ES-2re and WorldSID the rib deflection, and WorldSID abdominal deflection to achieve the 2015 ENCAP target using parameter study of various side airbag systems in 32kph pole and 50kph MDB side impact. As a result, in case that same airbag of four type showed the similar tendency both dummys.
차량 측면도어 임팩트 빔의 최적설계 및 측면도어 충돌실험에 관한 연구
김재열(Jae Yeol Kim),최순호(Soon Ho Choi) 한국트라이볼로지학회 2015 한국트라이볼로지학회지 (Tribol. Lubr.) Vol.31 No.1
The impact beam, a beam-shaped reinforcement installed horizontally between the inside and outside panels of car doors, is gaining importance as a solution to meet the regulations on side collision of vehicles. In order to minimize pelvis injury which is the biggest injury happening to the driver and passengers when a vehicle is subject to side collision, energy absorption at the door impact beam should be maximized. For the inner panel, the thrust into the inside of the vehicle must be minimized. The impact beam should be as light as possible so that the extent of pelvis injury to the driver and passenger during side collision of the vehicle is minimal. To achieve this, the weight of the impact beam, has to be optimized. In this study, we perform a design analysis with a goal to reduce the weight of the current impact design by 30% while ensuring stability, reliability, and comparison data of the impact beam for mass production. We conduct three-point bending stress experiments on conventional impact beams and analyze the results. In addition, we use a side-door collision test apparatus to test the performance of beams made of three (different materials: steel, aluminum, and composite beams).
US NCAP 및 IIHS 측면 충돌 시험법간 특성 비교 및 시험 시 오차 인자에 의한 영향 검토
배준석,김호,소영명 사단법인 한국자동차안전학회 2024 자동차안전학회지 Vol.16 No.1
Side impact with MDB (moving deformable barrier) is common in side crash test protocols around the globe, most of which are quite similar to that of US NCAP side impact protocol but IIHS side impact protocol is considered to be the most harsh one due to the MDB’s weight and impact speed. In this study US NCAP side impact and IIHS side impact test conditions are compared with respect to delta-V (impulse of the test vehicle), roll speed, and yaw speed as well as survival space (the smallest distance between the front driver seat cushion center to B pillar after the test). Error factors (friction between tire and ground, tolerance of vertical and longitudinal position of the MDB with respect to the test vehicle), which are resident in the test protocol is studied with respect to the global vehicle behavior (delta-V, roll, yaw) as well as survival space.
도어트림 측면 충돌 해석 및 시험을 통한 실차 SHARP EDGE 예측에 대한 연구
김종수(Jongsoo Kim),백승현,Hunmin Park,이현철(Hunchol Lee),양희승(Heeseung Yang),김유민(Yumin Kim),강두안(Dooan Kang) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
The sharp edge in a full-scale Car Side Impact caused injury to the drivers. It is important to prevent sharp edge of full-scale Car through a pre-verification. The pre-verification system is verified by side impact test of full-scale car. However, this test spends a lot of money and time for sharp edge of using the full-scale car. So, there are limited number of examinations. In order to solve like this problem, the method that predict sharp edge of door trim is a necessary for auto part manufactures. This paper is purposed to describes a theory of the advanced side impact test and cae to improve sharp edge of door trim. It puts emphasis on analyzing sharp edge from simplified impact test and cae to improve sharp edge based on preceding verification. The research may lead to prediction of sharp edge before full scale side impact test
자동차 측면 충돌 시 도어트림 SHARP EDGE 해석 신뢰성 향상 연구
박은정(Eunjung Park),남종현(Jonghyun Nam),이현철(Hyunchol Lee),박현민(Hyunmin Park),윤성연(Sungyun Yoon),김종수(Jongsoo Kim) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
As the demand for car impact performance has been strengthened, Accordingly door trim assembly for the side impact test methods have been developed. For The automotive-parts manufacturers delivery the door trim assembly parts to car-maker, it is necessary result of the side impact test. So we use the CAE analysis method for the forecasting the behavior of sharp edge occurrence. the most biggest problem of current CAE Analysis method is the CAE analysis behavior of hot stacking boss mounting is different with real testing result. In order to improve this paper analytically for the fusing boss screws and techniques for assembling structures and discuss the effect on the structure of the improved analysis conducted by the interpretation of the actual vehicle mass production scheduled improvements.
Sled 시험과 해석을 통한 복부상해에 미치는 도어트림의 설계 연구
윤영한(Younghan Youn),한완희(W. H. Han),이현섭(H. S. Lee),안희상(H. S. An),신현수(H. S. Shin),김병윤(B. Y. Kim),전오환(O. W. Jeon) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The sled impact test and simulation of door trim for side impact protection were conducted in order to classify the role of door trim during the full vehicle side impact. This paper describes the correlation of armrest stiffness for door trim in abdomen forces by simple sled test method to simulate Korean side impact regulation. In this sled test, the door inner panel which was deformed in the full scale test was rigidly set on the sled, and impacted the dummy. Even if the sled moved in normal rail used in HyGe sled facility, the dummy responses were correlated with full vehicle tests in order to study occupant protection practically. In the study of sled tests, the effects of door trim especially armrest stiffness were studied in terms of abdomen forces measured from EUROSID abdomen 3 force sensors. In conclusion, it was found that the sled test with deformed door was a useful and efficient method to study for occupant protection.
일체형 도어 임팩트빔 개발에 따른 차량 측면 충돌 성능 평가를 위한 FE 동적 거동 시뮬레이션 활용
윤태호(Tae Ho Yoon),김호윤(Hoyoon Kim),허철(Cheol Heo),신세길(Segil Shin),권종완(Jongwan Kwon) 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.11
Door impact beam is the key part of a car in the case of a side collision car accident for reserving passenger’s safety area, and is required to be lightened a weight for saving fuel. It also needed to be reduced a process time and simplified the assembly of a door module. In this study, FE dynamic simulation is conducted by using LS-DYNA3D solver in order to developing a one-body door impact beam fitting in a side impact test. In order to securing the effectiveness of FE model of the door impact beam, the verification and validation of a door impact beam is achieved from the physical phenomenon extraction of a material property through a specimen test and the analysis condition setting through a bending test. Suitable shape condition of an impact beam is attained from the simulation of a simple FE door module model for a side impact test. FE model of the door module is validated by the experiment from an established side impact test apparatus for a whole door module including a window channel.
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.
도어트림 SHARP EDGE 예측을 위한 전면 충격 시험법 연구
김종수(Jongsoo Kim),조현권(Hyunkwon Jo),김희중(Heejoong Kim),박현민(Hyunmin Park),강두안(Dooan Kang) 한국자동차공학회 2014 한국자동차공학회 학술대회 및 전시회 Vol.2014 No.11
As times goes by, the viewpoint of the vehicle purchase consumers is on the increase. Because of the fact that the number of car accident casualties through the various boradcast media is announced, Above all, they take an active interest in vehicle safety. A safety is directly connected to vehicle crash and especially, The Side impact is extremely influenced on the driver’s injury. in case of side impact, Sharp edge which is caused by door-trim crack is directly injured to the driver. Therefore, car maker and door trim manufacture company are making an effort to pre-predict and improve sharp edge. In order to not only pre-predict sharp edge but also protect it, the repeated (real) vehicle crash test is the most accurate method, however, it isn’t effective in terms of time and cost that a large number of trial is conducted. For overcoming this problem In this paper, we propose a reliable testing methodology to pre-evaluate Door Trims for the chance of sharp edges occurring after impact, and show how to resolve the problem if it occurs before full-scale Car Side Impact test. This research leads to exact prediction of Door Trim sharp edge as full-scale Car Side Impact test.
도어트림 SHARP EDGE 예측을 위한 SEMI-SLED 시험법 연구
조현권(Hyunkwon Jo),박운진(Unjin Park),김종수(Jongsoo Kim),이현철(Hyunchol Lee),박현민(Hyunmin Park),강두안(Dooan Kang) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
More recently, safe regulations have been strengthened globally as the importance of automobile passenger safety has increased. This is especially true for car side impact accidents.mas they can cause serious injury due to the narrow space between the car interior and the passenger. To prevent this, a lot of automobile manufacturing companies conduct tests on a full-scale Car Side Impact for development period before regulation certification test. However in many cases the results don’t satisfy the safety regulations and standards, which then additional tests. Furthermore, the test is very expensive. In this paper, we propose a reliable testing methodology to pre-evaluate Door Trims for the chance of sharp edges occurring after impact, and show how to resolve the problem if it occurs before full-scale Car Side Impact test. This research leads to exact prediction of Door Trim sharp edge as full-scale Car Side Impact test.