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다축-진동 시험기를 이용한 자동차 엔진룸 진동내구 시험 연구
성대운(Daeun Sung),정기섭(Giseob Jung),정승균(Seunggyoon Jung) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The interest in the accelerated reliability test of engine mounts and engine wiring harness is increasing. This paper presents a lab-simulation test which has shortened the validation period for the durability of engine mounts and the reliability of engine sensor wiring/connecter. This paper also presents the making process of the durability test mode based on the severity comparison between proving ground and field road load data. The techniques for simulation by multi-axial simulation table (MAST) and some application are also described in this paper.
이상권(Sangkwon Lee),김병수(Byungsoo Kim),박동철(Dongchul Park),정승균(Seunggyoon Jung) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In our previous study, we have developed sound quality index for steady rumbling sound of passenger car. In this paper, we will study sound quality index for transient rumbling noise. The subjective evaluation of rumbling sound can be indicated to objective parameters by sound metrics of psychoacoustics and principal rumble component. And artificial neural network can be estimated complexity and nonlinear characteristics of relation between subjective evaluation and sound metrics. We applied to sound metrics and artificial neural network to development of sound quality index for transient rumbling sound of passenger car.