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GT-POWER를 이용한 신형 로터리 엔진의 1D 해석 모델 개발
박영준(Youngjoon Park),박태준(Taejoon Park),이창언(Chang-Eon Lee) 한국연소학회 2020 KOSCOSYMPOSIUM논문집 Vol.2020 No.9
This study develops 1D CFD simulation models for a new rotary engine originated from a three-lobes Gerotor pump(GP3 RTE). The models consider unique characteristics of GP3 RTE such as effective-area variations. The models are compared to identify each parameter effect and validated by comparing to 3D CFD result. The most advanced model well predict the performance indexes. The model may allow as a convenient tool for getting basic informations on optimizing design parameters of GP3 RTE without time-consuming 3D design change.
Symmetry구조를 갖는 Hybrid FEM Carrier의 사출성형해석 방법
박영준(Youngjoon Park),박천수(Chunsoo Park),전용(Yong Chun) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Many Automotive interior/exterior parts have been developed by the Quality Improvement and Cost Savings through the injection molding analysis S/W However, Hybrid FEM (Front End Module) Carrier has the difficulty of simplifying Plastic & Steel structure in injection molding analysis. Due to this difficulty, most of numerical analysis for Hybrid FEM Carrier has been analyzed excluding steel parts, it causes significant errors for the results. In this study, we have been analyzing various models in order to examine the difference of analysis results such as flow pattern, weld line, and degree of deflection. As a result, 3-different models had no differences in Flow analysis, but there were a lot of differences in Warpage analysis. Compared with real molded FEM Carrier, full model including steel part showed similar results as real FEM Carrier. In order to obtain the accurate analysis result, it is desired that steel part also should be considered.
박영준(Youngjoon Park),신충식(Choongsik Shin),공장춘(Jangchun Kong),박일완(Ilwan Park) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
This paper presents the development of high power and economical lap belt pretensioner. Lap belt pretensioner could be fitted to increase the occupant pelvis restraint with the seat and limit the pelvis forward displacement. Keeping an occupant from moving forward relative to the vehicle interior is crucial to minimizing injury. The aim of this work is cost and weight reduction and localization of lap belt pretensioner using Design For Six Sigma(DFSS). In addition, its performance should be above same the other lap belt pretensioner. To achieve the aim, orthogonal array is used. DFSS evaluates the influence and the interactions of selected control factors of lap belt pretensioner through a limited number of experiments and the optimized lap belt pretensioner system was verified.
eBoost 차량의 EPB (Electric Parking Brake) Dynamic Braking Function의 효용성 연구
이강원(Kangwon Lee),박영준(Youngjoon Park),구형찬(Hyoungchan.Koo) 한국자동차공학회 2019 한국자동차공학회 학술대회 및 전시회 Vol.2019 No.11
The Electric Parking Brake (EPB), the boom started - with a concentration on caliper integrated systems and with an integration of the ECU into the ESC system and also eBoost vehicles increased. There is a wide range of requirements with enough dynamics and control comfort – Dynamic Braking during vehicle running. It can be a considerable alternative of backup brake system for eBoost vehicles because eBoost system have no vacuum booster and there are the possibilities of an electrical or electronic problem. So, EPB dynamic braking function have to meet statutory performance requirements for service brake and also to meet the customer requirement – deceleration feeling. In this paper, we confirmed statutory performance requirements for EPB dynamic braking and we tried to find out the Korea market customer requirement about EPB target deceleration through customer clinic and analyzed survey results with regression equation model of the Loss Function. Through this study, we identified target deceleration that minimize customer dissatisfaction and we confirmed the possibility of variable target deceleration value of EPB Dynamic Braking through the regression equation model for each reference vehicle speed.