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Vol. 34, No. 12
December, 2017
 
 
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  Journal of the Korean Society for Precision Engineering  
 
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Journal of the Korean Society for Precision Engineering (JKSPE) is devoted to publishing original research articles with high ethical standard on all aspects of precision…
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Code of Ethics for Academic Activities of the Korean Society for Precision Engineering (KSPE) Enacted on October 9, 2008 Chapter 1: Overall Rules Article 1: Purpose…
Editor-in-Chief: Sun-Kyu Lee
Vice Editor-in-Chief: Dae Eun Kim
JKSPE Editorial Board
ISSN 1225-9071(Print)
ISSN 2287-8769(Online)
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Vol. 34, No. 12, pp. 897-902
Title: Input-Shaping Methods for a Linear Motor Motion Stage with a Passive RFC(Reaction Force Compensation) Mechanism
Corresponding Author: Hyeong-Joon Ahn
Abstract: The residual vibration during the high acceleration and deceleration of a motion stage degrades the manufacturingsystem productivity and lifespan. Although a passive RFC mechanism with a movable magnet track reduces the residual vibration of the system base, a magnet track resonance may occur according to the motion profile, and the mover inposition error increases due to the residual vibration of the magnet track. We investigated input-shaping methods for a linear motor motion stage with a passive RFC mechanism. An air-bearing linear motor motion stage with the passive RFC mechanism is built, and the dynamic characteristic of the passive RFC mechanism is identified using a freevibration test. Then, mover velocity profiles are generated using various input-shaping methods. Further, the effects of the input-shaping methods on the air-bearing linear motor motion stage are investigated by comparing the magnet track oscillation, settling time, and mover in-position error. Finally, several input-shaping methods are applied to reduce the mover rise-time delay for the proposed linear motor motion stage. A properly shaped input motion profile removes the residual vibration of the passive RFC mechanism without any additional devices, as well as reducing the transmitted reaction force and the in-position error. …
   
Vol. 34, No. 12, pp. 917-926
Title: A Study on the Design Model of Passive Tunable Damped Boring Bar
Corresponding Author: Jun-Hee Hong
Abstract: Boring depth is limited by the overhang on which the vibration frequency depends. To improve the process, a passive boring bar with dynamic vibration absorber has been used, but is effective only for a limited length of overhangs. In this study, a tunable damped boring bar was devised to cope with a variable length of overhangs. Vibration parameters arising from the various overhangs were analyzed using Euler’s beam theory. The proposed bar contains a cantilever-type dynamic vibration absorber to suppress the vibration amplitudes of the overhangs. The absorber adjusts the natural frequency of the bar by adjusting the spring stiffness. The proposed bar was fabricated and tested by impact excitation and its capability to suppress vibration was demonstrated. …
   
 
Current Issue Archive
    
    
JKSPE Vol. 34, No. 12
Observation for Crack Generatdion of Wheel Tread Regarding to Brake Cycle
Seok Jin Kwon1, Jung Won Seo1, Hun Kyu Jun1, Dong Hyung Lee1

제동 사이클변화에 따른 차륜답면의 열균열 발생 관찰
권석진1, 서정원1, 전현규1, 이동형1

J. Korean Soc. Precis. Eng., Vol. 34,  No. 12  pp. 847-852, 2017.
http://dx.doi.org/10.7736/KSPE.2017.34.12.847 
    Full text via DOI      PDF Links
 
An Experimental Study on the Re-Useable Self-Locking Nut for High-Speed Rail Vehicle Bogie and Car Body Connection Device
Chan Woo Lee1

고속철도차량 대차 및 차체 연결장치에 재사용 가능한 풀림 방지 너트에 대한 실험적 연구
이찬우1

J. Korean Soc. Precis. Eng., Vol. 34,  No. 12  pp. 853-860, 2017.
http://dx.doi.org/10.7736/KSPE.2017.34.12.853 
    Full text via DOI      PDF Links
 
Evaluation of Fatigue and Fracture Characteristics of High-Speed Rail Material
Jung Won Seo1, Seok Jin Kwon1, Hyun Kyu Jun1, Dong Hyeong Lee1

고속철도 레일 재료의 피로 및 파괴특성 평가
서정원1, 권석진1, 전현규1, 이동형1

J. Korean Soc. Precis. Eng., Vol. 34,  No. 12  pp. 861-866, 2017.
http://dx.doi.org/10.7736/KSPE.2017.34.12.861 
    Full text via DOI      PDF Links
 
A Study on the Accelerated Life Test of Axle Bearing for Railway Vehicles Using Rotational Speed-Temperature Variation Curve
Jae Won Lee1, Young Sam Ham1, Chang Sung Seok2

회전속도-온도변화 특성곡선을 이용한 철도차량용 차축 베어링의 가속수명시험에 관한 연구
이재원1, 함영삼1, 석창성2

J. Korean Soc. Precis. Eng., Vol. 34,  No. 12  pp. 867-872, 2017.
http://dx.doi.org/10.7736/KSPE.2017.34.12.867 
    Full text via DOI      PDF Links
 
Analysis of the Braking Performance Test Results between Mechanical and Electronic Inertia
Min Soo Kim1, Don Bum Choi1, Seok Jin Kwon2

기계관성 및 전기관성 적용에 따른 제동성능시험 결과분석
김민수1, 최돈범1, 권석진2

J. Korean Soc. Precis. Eng., Vol. 34,  No. 12  pp. 873-879, 2017.
http://dx.doi.org/10.7736/KSPE.2017.34.12.873 
    Full text via DOI      PDF Links
 
Dynamic Analysis of the Influence of the Track Irregularity on the Running Performance of the Railway Vehicle
Bu Byoung Kang1

궤도틀림 특성이 철도차량 주행성능에 미치는 영향 해석
강부병1

J. Korean Soc. Precis. Eng., Vol. 34,  No. 12  pp. 881-887, 2017.
http://dx.doi.org/10.7736/KSPE.2017.34.12.881 
    Full text via DOI      PDF Links
 
Development of Magnetostrictive Control Rod Position Indicator
Eun-Ju Yoo1, Young-Woo Park2, Myounggyu Noh2

자기변형 제어봉 위치지시기의 개발
유은주1, 박영우2, 노명규2

J. Korean Soc. Precis. Eng., Vol. 34,  No. 12  pp. 889-895, 2017.
http://dx.doi.org/10.7736/KSPE.2017.34.12.889 
    Full text via DOI      PDF Links
 
Input-Shaping Methods for a Linear Motor Motion Stage with a Passive RFC(Reaction Force Compensation) Mechanism
Kang Jo Hwang1, Jae Seong Jeong2, Hyeong-Joon Ahn3

반발력 보상 기구 적용 선형 모터 이송 장치의 입력 성형 기법
황강조1, 정재성2, 안형준3

J. Korean Soc. Precis. Eng., Vol. 34,  No. 12  pp. 897-902, 2017.
http://dx.doi.org/10.7736/KSPE.2017.34.12.897 
    Full text via DOI      PDF Links
 
Application of LOM for Freeform Architecture
Sangyeol Jeong1, Joonhyuk Sim1, Hakmin Kim1, Dongbin Shin1, Daehie Hong1

비정형 건축을 위한 LOM적층기술의 응용
정상열1, 심준혁1, 김학민1, 신동빈1, 홍대희1

J. Korean Soc. Precis. Eng., Vol. 34,  No. 12  pp. 903-909, 2017.
http://dx.doi.org/10.7736/KSPE.2017.34.12.903 
    Full text via DOI      PDF Links
 
Evaluation of High-Temperature Oxidation, Corrosion and Wear Resistance of Top-Coated Grate Bar
Hee Keun Cho1, Jin Hyo Ahn2

탑코팅된 그레이트바의 고온산화, 부식, 내마모 특성 평가
조희근1, 안진효2

J. Korean Soc. Precis. Eng., Vol. 34,  No. 12  pp. 911-916, 2017.
http://dx.doi.org/10.7736/KSPE.2017.34.12.911 
    Full text via DOI      PDF Links
 
A Study on the Design Model of Passive Tunable Damped Boring Bar
Jun-Hee Hong1, Yang-Yang Guo2, Doo-Sang Song3

패시브 튜너블 방진 보링바의 설계모델에 대한 연구
홍준희1, 곽양양2, 송두상3

J. Korean Soc. Precis. Eng., Vol. 34,  No. 12  pp. 917-926, 2017.
http://dx.doi.org/10.7736/KSPE.2017.34.12.917 
    Full text via DOI      PDF Links
 
Development of a Test Equipment for Diaphragm Deflection Using a PZT Actuator
Dae Jhoong Yoon1, Jung Hwan Ahn1

PZT 구동기를 이용한 다이어프램 변형시험 장치 개발
윤대중1, 안중환1

J. Korean Soc. Precis. Eng., Vol. 34,  No. 12  pp. 927-932, 2017.
http://dx.doi.org/10.7736/KSPE.2017.34.12.927 
    Full text via DOI      PDF Links
 
Safety Evaluation of Lumbar Stand-Alone Cage
Mun-Hwan Lee1, Sang Bok Kim1, Eun-Yi Jeon1, Minjung Kim1, Eun Young Kim1

요추용 자립형 추간체 유합 보형재의 안전성 평가
이문환1, 김상복1, 전은이1, 김민정1, 김은영1

J. Korean Soc. Precis. Eng., Vol. 34,  No. 12  pp. 933-938, 2017.
http://dx.doi.org/10.7736/KSPE.2017.34.12.933 
    Full text via DOI      PDF Links
 
A Study on the Effects of the Corrugated Angle on Low Velocity Impact Characteristics of the Lightweight Sandwich Plate with Corrugated Cores Produced by FDM Process
Yong Hun Jang1, Dong-Gyu Ahn1, Bo Sung Shin2

FDM 공정으로 제작된 주름 심재를 가진 경량 샌드위치 판재의 주름 경사각에 따른 저속 충격 특성에 관한 연구
장용훈1, 안동규1, 신보성2

J. Korean Soc. Precis. Eng., Vol. 34,  No. 12  pp. 939-948, 2017.
http://dx.doi.org/10.7736/KSPE.2017.34.12.939 
    Full text via DOI      PDF Links
 
 
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