http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
최기현(Choi, Ki hyun),조의찬(Cho, Eui Chan),정재혁(Cheong, Jae Hyuk),최지환(Choi, Ji whan) 한국자동차공학회 2017 한국자동차공학회 학술대회 및 전시회 Vol.2017 No.11
The door impact beam is produced with composite materials that have an equal or greater impact performance against steel by using an integral molding process. Integrally molding process is a method for molding different materials at one time without the adhesive material and economical method that don’t need for a separate assembly process than other production method. Door impact beam is applied to the G-ROD and GMT for weight reduction and produced by applying the steel part for stiffness reinforcement.
이상현(Lee, Sang hyun),조의찬(Cho, Eui Chan),김진호(Kim, Jin Ho),최재훈(Choi, Jae Hoon),육민숙(Yuk, Min sook),구자성(Koo , Ja Sung),오종철(Oh,Jong Cheol),변성근(Byun, Seong guen) 한국자동차공학회 2016 한국자동차공학회 부문종합 학술대회 Vol.2016 No.5
The door latch is difficult & complex parts in a consisting of 48 sub parts part and have a direct impact on the safety of the passenger. The lot number of sub parts means that function and performance may vary depending on the tolerance of each parts, and thus a combination made in consideration of the design tolerance condition and validation. This paper introduces a methodology for verifying trying to actually produce these parts looking for a combination of the worst conditions through tolerance analysis.
하이브리드(알루미늄&스틸)타입 도어의 열변형 개선 구조 개발
최기현(Choi, Ki Hyun),조의찬(Cho, Eui Chan),정재혁(Cheong, Jae Hyuk),방재철(Bang, Jae Chul),신성철(Shin, Sung Chul),류현정(Ryu Hyeon Jeong),오영현(Oh, Young Hyun),이병룡(Lee, Byung Ryeon) 한국자동차공학회 2019 한국자동차공학회 부문종합 학술대회 Vol.2019 No.5
It describes a hybrid door that is being developed in advance by applying aluminium to the outer panel with the greatest weight saving effect on the door and steel on the inner panel assembly requiring high formability and weldability.
동특성을 고려한 도어 인너판넬 강건구조 및 시험법 연구
이종원(Lee, Jong Won),조의찬(Jo, Eui Chan),전원석(Jun, Won Suk),조경호(Cho, Kyoung Ho),최기현(Choi, Ki Hyun),변민형(Byun, Min Hyung) 한국자동차공학회 2017 한국자동차공학회 학술대회 및 전시회 Vol.2017 No.11
Many kind of vibration can be delivered to user as a type of noise which is caused by external factor or vibration of automobile parts itself. And those noises can be amplified when forced frequency and natural frequency matched. We call this phenomenon “Resonance” and this is an important phenomenon that we have to escape or make it smaller. To reduce vibration and noise, escaping match of frequency has a limit because of many reasons. In this study, we are going to focus on how to make the amplified noise smaller. So far, during development of car, what we measure to know stiffness of door inner panel is static stiffness only. But static stiffness can’t represent vibration characteristic of door inner panel. So we need to add the concept of dynamic stiffness into development process to reduce noise. To find optimal design method which can make noise smaller we did modal test and analysis.
박완수(Wansu Park),조의찬(Eui Chan Cho),백승현(Seung-hyun Baek),조한신(Han Shin Cho),최석규(Seok kyu Choi),김종대(Jong dae Kim) 한국자동차공학회 2017 한국자동차공학회 학술대회 및 전시회 Vol.2017 No.11
A new point of view in interior trim is weight reduction. We developed a new door trim material to reduce the gravity. A Light wood-fiber material can reduce the weight( 40 % ↓) with 1.1~1.2T (down from 2.5T). We mass-produced the Light wood-fiber door trim in All new K7 project with 3,000won/kg cost increasing. So, we contrive the new types of 1 step covered light-fiber door trim using that’s ventilation property and reduce the cost. First of all, we consider how to reduce the process of the covering of the wood-fiber. And describe the method to secure the quality and cost.
박완수(Wansu Park),조의찬(Eui Chan Cho),전원석(Won Seok Jun),홍은표(Eun Pyo Hong),조한신(Han Shin Cho),이명렬(Myoung Ryoul Lee),최은호(Eun Ho Choi) 한국자동차공학회 2016 한국자동차공학회 부문종합 학술대회 Vol.2016 No.5
A new point of view in interior trim is weight reduction. We developed a new door trim material to reduce the gravity. A Light wood-fiber material can reduce the weight( 40 % ↓) with 1.1~1.2T (down from 2.5T). But we should modify the stiffness for structure. First of all, we consider which structure is the best for quality/cost and weight. We analyze the structure for noise and stiffness. Whats more, optimize the process and reduce the increased cost.
김규희(Kyu hee Kim),백승현(Seung Hyun Baek),조의찬(Eui Chan Cho) 한국자동차공학회 2017 한국자동차공학회 학술대회 및 전시회 Vol.2017 No.11
Sharp edge is the big issue for door trim item because it is a regulation in a few specific countries. In order to solve the sharp edge problem, advanced research has focused on the development of the test method that reproduce the sharp edge of door trim for auto part manufactures. However, that problem is not solved and continuously happened. In this paper, we analyze the present process of sharp edge and suggest the other way which is able to use during the engineering design step to solve this problem. It is based on the study of plastic material characteristics with a high speed tensile test and the FEA analysis. Basically, plastic fracture is difficult to define and the test specimen shape is not decided, yet. So I used FEA result as a reference tool. A full-car FEA result is to predict the door trim movements during the impact test, and a door trim FEA result is to predict the relative fracture. Also, the general knowledge and comprehension of side impact test is needed for the door trim engineers.
조완동(Jo, Wan Dong),한제선(Han, Je Sun),이준호(Lee, Jun Ho),조의찬(Cho, Eui Chan),최성욱(Choi, Sung Uk) 한국자동차공학회 2017 한국자동차공학회 학술대회 및 전시회 Vol.2017 No.11
A study of vehicle noise through BSR evaluation equipment. The authors have developed a new test method for Door Trim Materials. Through the auditory test, we sorted out material pairs which are vulnerable to BSR problems. As a result of the analysis, this paper help the engineer to select the materials of door trim in order to avoid the BSR problem