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신용석(Yong Seok Shin),박정길(Jeong Gil Park),김헌수(Hun Soo Kim),구준모(Jun Mo Ku),오민혁(Min Hyuk Oh),김인철(In Cheol Kim) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
Active Air Flap System is located behind of Radiator Grille. And this system has flaps which open and shut for indraft of air. According to indraft air, Engine is cooled. Active Air Flap System receives vehicle information(cooling water temperature, A/C refrigerant pressure, etc) and work opening and shutting for Engine cooling. Active air flap system is good for fuel efficiency, heating efficiency and waste gas reduction.
복합하중복합하중을 고려한 크래쉬패드 모듈의 최적화 연구
김혜경(Hye Kyung Kim),박정길(Jeong Gil Park),김헌수(Hun Soo Kim),구준모(Jun Mo Ku),김해룡(Hae Ryong Kim),서명원(Myung Won Kim) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
The noise of interior parts is one of the major contributors to the perceived quality in a vehicle. The noise is caused by interior plastic parts and other parts as a result of permanent deformation. In this paper, an analytical study to reduce permanent deformation in a C/PAD module is presented. The analytical investigation utilizes a novel and practical methodology, which is implemented through the software tools, ABAQUS and iSight.
초음파 파라미터를 이용한 사과의 기계적 특성 분석을 위한 기초 연구
이상대 ( Sang Dae Lee ),김기복 ( Ki Bok Kim ),박정길 ( Jeong Gil Park ),김만수 ( Man Soo Kim ) 전북대학교 농업과학기술연구소 2010 농업생명과학연구 Vol.41 No.1
This study was performed to develop the nondestructive evaluation technique for the mechanical properties of fruit using ultrasonic technique. Ultrasonic parameters such as sound velocity, peak amplitude, attenuation coefficient in maximum amplitude according to storage time were measured using the fabricated 100 kHz transmitting and receiving ultrasonic transducers. The mechanical properties such as rupture point and elastic modulus of apple were measured by universal testing machine. Multiple linear regression (MLR) models to estimate the mechanical properties of apple were developed using the ultrasonic parameters. The coefficients of determination of MLR models for rupture point and elastic modulus of apple were 0.5635 and 0.7089, respectively.