http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김충환(Chung Hwan Kim),최병오(Byung Oh Choi),류병순(Byung Soon Ryu),임규진(Kyu Jin Lim),이명훈(Myung Hoon Lee),김동수(Dong Soo Kim) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
There has been a great interest in printing technology as a low cost and mass production method for the application of printed electronics such as printed TFT, solar cell, RFID Tag, printed battery, and so on. In this study, apparatuses of gravure-offset printing are developed for fine line-width/gap printing and examining pattern distortion occurred in gravure-offset printing process. The fine line-width/gap pattern shows that it is possible to make around 20 micro-meter line-width/gap printing patterns. Pattern distortion is modeled, and the amount and shape of the distortion are calculated by using commercial FEM code. The roll-to-roll printing system under development consists of unwinder/rewinder, two printing units, one coating unit, drying units, guiding unit, vision system, and other auxiliary devices. For multi-layer printing, the system is designed to be capable of printing two different materials.
Stress distributions and wrinkling analysis of webs under non-uniform and asymmetric edge loading
Chung Hwan Kim(김충환),Byung-Oh Choi(최병오),Dong-Youn Shin(신동윤),Byung-Soon Ryu(류병순) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
Non-uniform edge loading can cause the unwanted wrinkling of a web. Airy stress functions are obtained in a closed form for the wrinkling analysis of a web under non-uniform and asymmetric edge loading. The stress distributions of a web under non-uniform edge loading on one side only show the effect of Saint Venant’s principle. For any non-uniform edge loading, the stress distributions converge to the linear one with equal resultant force and moment. The wrinkling modes and conditions of a web with arbitrarily distributed loading at any edge are found. The non-uniformity of applied edge loading affects the wrinkling condition of a web.