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강성종(Sung-Jong Kang),서홍재(Hong-Jae Seo),김병주(Byung-Joo Kim) 한국기계가공학회 2011 한국기계가공학회지 Vol.10 No.4
Fuel tank sloshing noise of vehicle is caused by flow impact on the tank wall during sudden braking, and the sloshing vibration of tank wall is a coupled phenomenon of the fuel inside tank and tank wall structure. Therefore, Fluid-Structure Interface(FSI) analysis technology should be adopted to predict accurately the sloshing vibration. In this study, FSI approach was employed to analyze sloshing phenomenon for a simple tank model with velocity change of the actual vehicle test. First, the simulated results for rigid tank model were compared with those for deformable tank model. Next, influence of baffle location and shape of baffle holes on the acceleration magnitude and the maximum stress of tank wall was investigated. In addition, sloshing analysis for tank with another baffle type was carried out.
윤상민(Sang-Min Yoon),강성종(Sung-Jong Kang) 한국기계가공학회 2012 한국기계가공학회지 Vol.11 No.3
Door effort was calculated for a new door checker with torsion bar spring and integrated checker case by FE analysis. A hybrid checker arm which has peaks and valleys only on the upper surface was adopted to reduce noise in operation and make operation with more distinctive steps. The checker arm was modeled using shell elements to estimate both the longitudinal and the lateral resistance force by checker arm. By combining the checker arm resistance force obtained from analysis and the door self-closing force by the theoretical calculation, door effort was predicted to show the good correlation with test results. In addition the unrolling effect of roller model was investigated and a new roller type for more smooth rolling was studied.
부재단면 형상에 따른 부재 굽힘붕괴 특성의 폼 충진 효과
이일석,강성종,Lee, Il-Seok,Kang, Sung-Jong 한국자동차공학회 2007 한국 자동차공학회논문집 Vol.15 No.2
More diversified and strengthened safety regulations require higher safety vehicle with less weight. The structural foam can play a role for restraining section distortion of main body members undergoing bending collapse at vehicle crash. In this study, using structural foam modeling technology, validated in previous work, the bending collapse characteristics were evaluated for two types of circular and actual vehicle body frame sections. With changing the foam filling method, outer panel thickness and section shape, load carrying capability and absorbed energy were observed. The results indicate valuable design strategy for effectively elevating bending collapse performance of body members with foam filled.
Iding 진동특성을 고려한 자동차 조향계의 최적화 연구
윤희욱(Hee-Wook Yoon),강성종(Sung-Jong Kang) 한국자동차공학회 1992 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1992 No.11
In this study, the analytical method was investigated in order to predict and optimize the idling vibrational characteristics of steering system at the Initial stage of new car development using steering subsystem finite element model. Steering subsystem model which consisted of steering wheel, steering column and cowl cross member assembly was built and its validity was analyzed in order to verify usefulness of the subsystem model in predicting steering local vibration modes, modal parameters of the analysis and test results have been analyzed. And then the applications of the verified method to the design of various type of steering system under development have been described.
윤희욱(Yoon Hee-Wook),강성종(Kang Sung-Jong) 한국자동차공학회 1993 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In order to evaluate and improve the Idle vibrational characteristics of A-Car steering systems, the finite element models of front body and<br/> steering systems are constructed. Using these models, dynamic<br/> characteristics (natural frequencies, modeshapes, and frequency response functions) of the initial designs are obtained. And to reduce the weight or to move salle critical natural mode into safe region, optimal redesign analysis is performed.<br/>
김봉수(Bong-Soo Kim),강성종(Sung-Jong Kang) 한국자동차공학회 1992 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1992 No.11
In this Study, CAE techniques is developed in order to identify and optimize Idling vibrational charateristics of Engine/Exhaust Subsystem.<br/> Two bellows :node I ing techniques (springs and detailed shells) are attempted and compared. Wi th the changes of bellows length. corrugation thickness and layout of exhaust pipe, subsystem models are analyzed to achieve desirable idling charateristics of the subsystem.
김형광(Hyoung-Kwang Kim),강성종(Sung-Jong Kang) 한국자동차공학회 2004 한국자동차공학회 지부 학술대회 논문집 Vol.- No.-
Recent trend of the consumer preference in automobile market is sport utility vehicle and multi-purpose vehicle, which provide wide inner space for various and efficient usage. Though those vehicles are convenient for loading much luggage in space behind the third seat, if the vehicle undergoes front impact with high velocity, that luggage strongly collides into the seat back and the passengers in the seat could be severely injured. Therefore, high strength against luggage intrusion is required for the third seat, and it is regulated by law of ECE R17. In this study, through comparison of the analysis and test results for a seat under developing of a new vehicle, an analysis technique for simulating luggage intrusion test for ECE R17 was investigated.