http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
차량 엔진 회전 차수 측정 기반의 능동 소음 제어에 관한 연구
추용주(YongJu Chu),김규식(Kyusik Kim),이봉현(Bonghyun Lee),신용상(Yongsang Shin),은효준(Hyojun Eun),이승엽(Seung-Yop Lee) 대한기계학회 2017 대한기계학회 춘추학술대회 Vol.2017 No.11
This research is about the way to control noise of the automobile powertrain actively. In earlier days, the physical ways for minimizing the friction or passive ways such as using vibration absorbers were applied to reduce noise caused by engine speed. However, these ways have had economic and technical limits to be applied at high-performance powertrain. This paper proposed the real-time way that can optionally extract dominant engine noises and eliminate them. The speaker generates wave that has reverse phase of particular noises which the passenger experiences. Then the real-time noise cancelation operates by overlaying the noise and the wave. It was also verified by automobile-running tests.
추용주(Yongju Chu),정시욱(Siuk Jung),김규식(Kyusik Kim),이봉현(Bonghyun Lee) 한국자동차공학회 2017 한국자동차공학회 부문종합 학술대회 Vol.2017 No.5
This paper is about the study of structure analysis of a tid rod module using finite elements method for electric vehicle. Generally, the tid rod module was designed with steering system. Most of all the tid rod systems are mounted by steering system. The weight of the tid rod was optimized by adopting the developed materials. Therefore robust structure and buckling performances should be considered in the structure design of the tid rod outer. In this paper ,the tid rod outer was applied by aluminum for light-weight. A study was preformed on the verifications of the reliability and structure behavior by analysing of the finite elements method(FEM) and checking the bucking behavior.
추용주(YongJu Chu),이병남(ByungNam Lee),추명주(MyungJu Chu),강구태(KooTae Kang) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
DCT has comfortable of change of speed automatic transmission and high efficiency of manual transmission at once. However DCT has complicated structure and is has difficult to develop. In this study, we apply the shift mechanism based on a barrel cam to indicate the efficient shift mechanism and we has gone to analysis of design to cam-profile such as cycloid curve, polynomial curve and modified sine curve.
은효준(Hyojun Eun),추용주(Yongju Chu),이승엽(Seung-Yop Lee) 대한기계학회 2018 대한기계학회 춘추학술대회 Vol.2018 No.12
In these days, there is a paradigm shift from internal-combustion-engine vehicles to electric vehicles. Most electric vehicles developed include batteries mounted at the bottom, near the rear wheels. Hence, the robust design of underbody parts against the impact of external bodies or random stone chipping need to be made. In this study, the mathematical modeling and statistical probability analysis of stone chipping and tire slip are performed for identifying and confirming the critical zones of the vehicle underbody that may be damaged by stone chipping. Thereby, stone chipping can be predicted by simulations using the employed mathematical model, before conducting experimental verification using the existing methods. Furthermore, the development cost and time can be reduced because the elements of the designed underbody can be analyzed for robustness, and the safety factor can be established during the design stage.