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폴리스틸렌계 엘라스토머의 사출성형조건에 따른 기계적 물성 변화
정영득,한성렬,김준형,전승경 한국기계가공학회 2006 한국기계가공학회지 Vol.5 No.4
From the past, most of the studies about thermoplastic elastomers(TPEs) have been conducted for theirs compounded materials and morphology. However these studies do not directly affect on injection molding processing. Therefor this study is focus on the variation of mechanical properties on TPEs moldings by increasing injection molding conditions which included injection molding conditions include injection pressure, holding pressure, melt temperature, mold temperature. The used experimental TPEs is a group of styrene(TPS). Injection pressure slightly affected on tensile strength, shrinkage and hardness. Holding pressure only affected on hardness. The melt temperature was the most affective condition on tensile strength.
NXT와 TETRIX를 사용한 무인 전기 오토바이의 설계
정영득,사영준,김재우,김재우,지준근 순천향대학교 부설 산업기술연구소 2014 순천향 산업기술연구소논문집 Vol.20 No.1
In this paper, a new self-balancing electric-motorcycle(E-Motorcycle) that uses a robot equipped with an NXT micro-controller as well as a TETRIX is developed. Together they contain the control program known as LabVIEWfor LEGO MINDSTORM. The E-Motorcycle is constructed of an aluminum frame, a DC servo motor with controller, an additional DC motor, a 12V Nikel battery, a Gyro sensor and an Acceleration sensor. By incorporating the LabVIEW for LEGO MINDSTORMS program the E-Motorcycle can be driven without any loss of balance. The E-Motorcycle control system in totality measures the inclination of the device by using the Gyro sensor. The drift phenomenon of the Gyro sensor is due to an integral error in the process of converting measured (deg/s) values into (deg) values. To minimize this drift phenomenon are compensated by combining the Gyro sensor with the Acceleration sensor. According to the combination of these sensors the steering of the E-Motorcycle is controlled by a compensated deg value as input into the DC servo motor. The E-Motorcycle is designed to enable proper balancing under the control of the system processes so that a user may drive with increased safety.