Method for Radial Stiffness Measurement of Strain Wave Gear Flexspline

Sangwoong Lee, Daegwon Koh, Jong-Geol Kim, Murim Kim

Strain wave gears are widely used as reducers in robots, including collaborative and industrial robots. As a key component, they play a crucial role in determin...

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DOI: https://doi.org/10.7736/JKSPE.024.063

Development of a Statically Balanced Lifting Device for Repetitively Transporting Construction Materials

Byungseo Kwak, Seungbum Lim, Jungwook Suh

In the field of construction automation, significant research efforts continue to focus on replacing human labor; however, the varied and dynamic nature of cons...

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DOI: https://doi.org/10.7736/JKSPE.024.083

Development of Simulation Model for a 40 kW Electric Tractor based on Dual Motors and Single Planetary Gear

Gang Hyun Kim, Kyeong Dae Kim, Si Yeong Lee, Dae Cheol Kim, Won Gun Kim

The purpose of this paper was to develop a simulation model for a 40 kW electric tractor using a powertrain based on dual motors and a planetary gear. To select...

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DOI: https://doi.org/10.7736/JKSPE.024.084

Laser Pointing Control System based on Deep Reinforcement Learning Algorithm

Geemin Lee, Youngsu Park, Wonho Choi, Dae Gyu Choi, Chikyung Ahn, Yongeun Yoon

In the field of optical engineering, the laser position control system has important role in many applications, such as measurement, communication, fabrication....

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DOI: https://doi.org/10.7736/JKSPE.024.088

Cutting of Chemically Strengthened Glass Using the Combination of Electrochemical Discharge and Grinding Processes

Jonghwan Kim, Jihong Hwang

Chemically strengthened glass has recently gained attention for use in mobile device display covers due to its enhanced mechanical properties. However, cutting ...

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DOI: https://doi.org/10.7736/JKSPE.024.096

Development of a Portable Air Pump-based Microflow Controller Using AI Video Analysis Feedback Control

Woohyun Park, Minseok Kim

Microfluidics allows for precise manipulation of small volumes of analytical solutions in diverse applications, including disease diagnostics, drug efficacy tes...

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DOI: https://doi.org/10.7736/JKSPE.024.098

Degradation Pattern Classification for Predicting Remaining Useful Life of Rolling-element Bearings

Yoonjae Lee, Dongju Seo, Sangyoon Lee, Changwoo Lee

In continuous-process systems, failures of rolling-element bearings typically cause accidents, reduced productivity, and production-related financial losses. Th...

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DOI: https://doi.org/10.7736/JKSPE.024.101

Enhanced Insertion Loss and Frequency Selectivity in SAW Devices through Tailored Ag-Ti Thin Films

Jae Cheol Park

A compositional library of Ag-Ti thin films was fabricated using combinatorial RF magnetron sputtering. The films exhibited a gradual compositional gradient acr...

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DOI: https://doi.org/10.7736/JKSPE.024.103

Study on the Effects of Operating Diametral Clearance Change on the Characteristics of Angular Contact Ball Bearings

Patrick John Po, Gilbert Rivera, Jin-Hyeok Sa, Seong-Wook Hong

This study investigates the influence of operating diametral clearance on the performance of angular contact ball bearings (ACBBs). It examines critical factors...

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DOI: https://doi.org/10.7736/JKSPE.024.104

Research on Four-wheel Steering-based Mobile Robot Driving Control Strategy to Implement Autonomous Driving Service

Do Hyun Kim, Chang Won Kim

This paper proposes an algorithm to improve path planning and tracking performance for autonomous robots using a Four-Wheel Steering (4WS) system in constrained...

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DOI: https://doi.org/10.7736/JKSPE.024.106