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R2R 인쇄전자 시스템에서 레지스터 에러의 감소를 위한 극점배치 기법을 이용한 장력제어에 대한 연구
성창엽(Seong Chang-Youp),이창우(Lee Chang-Woo),신기현(Shin Kee-Hyun) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
In R2R process, to guarantee mobility of printed electronic material on flexible substrate, optimal drying or curing time is required. Therefore, operating speed is restricted to low level in R2R printed electronic system. The register error that affects the mobility of printed conductive pattern on flexible substrate can be increased, because tension transfer phenomenon depends on time constant that is evaluated from operating speed and a span length of R2R printed electronic system. In this paper the relationship between register error and settling time of tension disturbance is analyzed. To minimize the register error in R2R printed electronic system, the advanced controller was proposed. Through transfer functions of the second-order system with tension model of a span and with desired maximum overshoot and settling time, the advanced controller that can yield minimizing the register error was derived. Simulation results demonstrate the compensation of tension disturbance within the time constant and the effectiveness of the proposed advanced controller for minimizing the register error.
강현규(Hyun-Kyoo Kang),성창엽(Chang-Youp Seong),신기현(Kee-Hyun Shin) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
Dancer systems are typical equipment for attenuation of tension disturbances. Lately, demands for high speed converting machines over 500mpm(m/min) are raising but domestic converting industries can not come up with the machines because capacities for a designing of the converting machine are restricted lower than 300mpm. Moreover roll-to-roll is attracted flexible display manufacturer’s attention as an effective method for productivity. A constant tension level in the span before the first printing cylinder is the key of high speed, high quality printing. This paper presents a modeling of dancer systems derived from a tension model and simulation results shows tension disturbances are reduced effectively. Root locus method is used to check the stability of feedback control of dancer systems.
강현규(Hyun-Kyoo Kang),성창엽(Chang-Youp Seong),신기현(Kee-Hyun Shin) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
Dancer systems are most widely used mechanism for attenuation of tension disturbances. Lately, demands for high speed converting machines over 500mpm(m/min) are raising but domestic converting industries can not come up with the machines because capacities for a designing of the converting machine are restricted lower than 300mpm. Moreover roll-toroll is attracted flexible display manufacturer’s attention as a effective method for productivity. A constant tension level in the span before the first printing cylinder is the key of high speed quality printing. This paper presents a modeling and simulations of dancer systems on converting machines.