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양정태(Jung-Tae Yang),정수진(Soo-Jin Jeong),박경우(Kyoung-Woo Park),곽호택(Ho-Taek Kwak) 한국자동차공학회 2022 한국자동차공학회 지부 학술대회 논문집 Vol.2022 No.5
Every manufacturing company is facing trends & challenges from their operating market. On average all KPIs & Initiatives are built on Delivery, Cost, Safety & Quality. In that regard, companies try to meet customer expectations and defined product requirements by using a baseline of CAD/ DMU & Process Planning tools and relying on Simulation, Expert Opinion & Physical Prototypes. But due to financial, timing, or other restrictions, there is still a high remaining risk and inefficiencies in achieving Product, Production, or Maintenance targets. Virtual Reality helps Product, Manufacturing, and Service Engineering Managers address challenges related to shorter product lifecycles, globalization, and new technology trends; better managing the risk of not achieving their targets; through a virtual and rich-context Human Centric Product & Processes validation, facilitating early identification of issues and improvements while reducing the need for physical trials & rely only on expert opinions. Note, Virtual Reality is not targeting to replace the baseline CAD, DMU, or Process Planning solutions that users are using. Neither are Virtual Reality aiming to be a complete replacement for the existing simulation solutions in place. Instead, Virtual Reality is intended to help users to reduce key risks and inefficiencies from the entire development process.
한의돈(Eui Don Han),장웅기(Woong Ki Jang),고순탁(Sun Tak Kho),곽호택(Ho Taek Kwak),서영호(Young Ho Seo),김병희(Byeong Hee Kim) 한국생산제조학회 2013 한국생산제조학회지 Vol.22 No.6
This paper presents a performance testing device for safety fences of domestic professional baseball stadiums. Safety fences of professional stadiums have been fabricated and installed without adhering to any safety regulations, safety fences demonstrate critically low safety performances and many outfielders are severely injured every season. In this study, we designed and fabricated a performance testing device for safety fences and investigated its validity and reproducibility. A HIC (head injury criterion) was used for the statistical analysis of colliding data. We found that the optimal expulsion pressure and eliminated the accelerometer by replacing it with a velocity sensor using an estimation of the correlation between the momentum data obtained from velocity sensor and the impulse data from the accelerometer.