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홍석범(Seok-Beom Hong),권혁홍(Hyuk-Hong Kwon) 한국생산제조학회 2013 한국생산제조학회지 Vol.22 No.5
A vibrating screen with multiple decks is widely employed for the process separation of many valuable export commodities. In this study, the inclination angle of the deck of the vibrating screen and the direction angle of the screen’s vibration under single particle kinematics were predicted. A finite element model of the vibrating screen was established by parameterization modeling. Through modal analysis and static analysis of the model, the natural frequency, natural vibration mode, and stress distribution of the structure were determined, based on which the dynamics and design optimization of the vibrating screen could be achieved. Future plans also reflect this by conducting detailed design of vibrating screens for the manufacturing plans of vibrating screen machine.
홍석범(Hong, Seok Beom),김우재(Kim, Woo Jae) 한국콘크리트학회 2021 한국콘크리트학회 학술대회 논문집 Vol.33 No.2
최근 국내 골재의 경우 조립율 및 0.08mm 이하 미립분에 대해서 일정하지 않은 품질을 나타내고 있다. 이러한 부분들은 콘크리트의 품질에 큰 영향을 끼친다. 본 연구에서는 지역별 골재 특성에 따른 물리적 특성 (압축강도 및 탄성계수)에 대한 부분을 평가하였다. Recently, aggregates of Korea have inconsistent quality in fineness modulus and the portion of the fine particles under 0.08mm. Such properties have a great influence on the quality of concrete. So, in this study, we evaluate the physical characteristics like sterength and the modulus of elasticity depending on the aggregate characteristics of each region.