• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2005.05a
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• pp.232-235
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• 2005

ATM(Automated-Teller Machine) is a maching that receives and pays money directly. The gate module of an ATM separates forgeries from bills and changes the transfer direction of bills. In this paper, the dynamic behavior of the gate was analyzed numerically and experimentally. The moment of inertia of the gate lever, the suction force of the solenoid and the spring force were measured respectively. And the displacements of the plunger, the vibration of the bracket, the input voltage and current were measured experimentally. The measured dynamic behaviors were simulated numerically using SAMCEF program, which can accommodate the kinematics and vibrations of flexible bodies. Through the analysis, the design factors were found to make a fast and reliable new ATM machine.

• Transactions of the Korean Society for Noise and Vibration Engineering
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• v.16 no.12 s.117
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• pp.1208-1214
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• 2006

ATM(automated-teller machine) is a machine that receives and pays money directly. The double bill detector(DBD) module of an ATM detects double bills from its thickness. In this paper, the dynamic behavior of the DBD was analyzed, which cannot be simulated correctly by a package program of SAMCEF. And the displacements of the lever was measured for various bills experimentally. The measured dynamic behaviors were analyzed kinematically using a vector equation and simulated dynamically by the derivation of equation of motion with consideration of damping and stiffness of the DBD and bills. The analysis showed that the spring constant of the system is not so influential, instead, the contact angle between the lever and bill needs to be larger than the existing DBD in order to be laster and reliable DBD.