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VPD 프로세스를 적용한 휠로더의 동역학 및 내구 해석
최성근(Sungkun Choi),박흥근(Heungkeun Park),장한기(Hankee Jang),명성식(Seongshik Myeong) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
This paper presents a dynamic and durability analysis of wheel loader using VPD process. In order to predict the dynamic behaviors of the wheel loader during the driving on the road with the bump, the analytical model of wheel loader was built up and the vehicle dynamic analysis was carried out using MSC.ADAMS/Car program. To Verifying the analysis results with experimental data, vertical acceleration of front axle and rear axle/frame were measured. Also, wheel loader was carried out fatigue analysis. From the analysis process, effective analysis method of wheel loader are proposed.
이종규(Jongkyu Lee),박영원(Youngwon Park),채장범(Jangbom Chai),장한기(Hankee Jang) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this thesis, we developed the sound quality index in vehicles by analyzing an objective measurement and a subjective evaluation data with statistical method. In order to develop the sound quality index for interior noise, objective measurement of vehicles driving in acceleration was measured. Simultaneously, subjective evaluation in 10-scale was performed by noise and vibration engineers. Also, the correlation analysis of psycho-acoustic parameters was performed based on objective measurement and subjective evaluation. The most critical factors at wide open test condition were adopted. Next, the new equation of sound quality index was derived through regression analysis of the factors. Finally, a testing was conducted in order to validate the effectiveness of the proposed index.