Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Byung Ik Choi"'
Publikováno v:
Transactions of Korean Society of Automotive Engineers. 20:77-82
It is well known that the targeted fuel efficiency could only be achieved by more than 40% reduction of the vehicle weight through improved design and extensive utilization of lightweight materials. In order to obtain the goal of the weight reduction
Autor:
Byung Ik Choi, Kyung Shik Kim, Sang Hyun Jun, Bongkyun Jang, Jae-Hyun Kim, Jun Ho Kim, Jung Yup Kim
Publikováno v:
Key Engineering Materials. :689-692
In this study, we propose a simplification scheme for modeling a complex bellows structure. Using 3-dimensional finite element analysis, vibration modes and natural frequencies are analyzed. The analysis results are compared with those measured by te
Autor:
Joo Sung Kim, Hak-Joo Lee, Jun-Hwan Goo, Tae-Kil Ahn, K.S. Kim, Byung-Ik Choi, Chang-Su Woo, Yong-Heon Lee, Kyung-Shik Kim
Publikováno v:
Transactions of the Korean Society for Noise and Vibration Engineering. 20:907-914
While rubber components are extensively used in automobile vehicle, there are still a lot of difficulties in designing the rubber components applied in complex shapes and preloaded states because of the complicated material properties. In this paper,
Autor:
Byung-Ik Choi, Cheol-Woong Kim, Chang-Pyung Han, Chang-Won Sung, Ki-Weon Kang, Kee Joo Kim, Meung Ho Rhee, Si-Tae Won
Publikováno v:
International Journal of Precision Engineering and Manufacturing. 10:71-75
Objective of this study was to develop basic techniques in order to apply aluminum sandwich sheets for an automotive hood part. The aluminum sandwich sheet is the material fabricated by adhering two aluminum skins to one polypropylene core. When it h
Publikováno v:
Key Engineering Materials. :189-192
In this study, we propose an interesting scheme for analyzing micro-pillar compression test results based on finite element method. It uses only load and displacement data measured by micro-pillar compression test, a framework of conventional increme
Publikováno v:
Transactions of the Korean Society of Mechanical Engineers A. 33:773-778
Chevron rubber springs are used in primary suspensions for rail vehicle. Chevron rubber spring have function which reduce vibration and noise, support load carried in operation of rail vehicle. Prediction and evaluation of characteristics are very im
Autor:
Joo Sung Kim, Kee Joo Kim, Si Tae Won, Yeon Sik Kang, Byung Ik Choi, Chang Won Sung, Keun Hwan Kim
Publikováno v:
Materials Science Forum. :390-395
The environment and energy related problem has become one of the most important global issues in recent years. One of the most effective ways of improving the fuel efficiency of automobiles is the weight reduction. In order to obtain this goal the hy
Autor:
Byung-Ik Choi, Ho-Yeun Ryu, Chang Won Sung, Heon Young Kim, Cheol-Woong Kim, Kee Joo Kim, Si-Tae Won
Publikováno v:
Journal of Solid Mechanics and Materials Engineering. 2:574-581
The AA5182/polypropylene/AA5182 (AA/PP/AA) sandwich sheet is the material fabricated by adhering two aluminum skins to one polypropylene core. When it has the same flexural rigidity as a steel sheet, it is 65% lighter than the steel sheet and 30% lig
Autor:
Jae Wook Choi, Kee Joo Kim, Hak-Joo Lee, Joo Sung Kim, Hyung Jun Ju, Lee Yong Heon, Byung Ik Choi
Publikováno v:
Advanced Materials Research. :943-946
Vibration in a driveline is presented in this paper. In the experiment, the rear subframe and propeller shafts and axle were composed and mounted with rubber each other. For applying the vibration input instead of the torsional vibration effect of an
Publikováno v:
Key Engineering Materials. :979-982
NIL(Nano Imprint Lithography) is one of the most promising lithography techniques. There are many variants of NIL, and two major techniques of them are thermal NIL and UV NIL. Here, we focus ourselves on the thermal NIL. During the thermal NIL, the p