The study of the occlusion mechanism design, modelling and control.

• Main Authors: Sheng - Ming Chen, 陳聖銘
• Other Authors: Kuo-Ming Chang
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/52642344754890081004

碩士 === 國立高雄應用科技大學 === 機械與精密工程研究所 === 98 === This dissertation combines the characteristics of planar four-bar linkages mechanism and leverage mechanism with high rotation speed, and high machine benefit. The control purpose is to use the servomotor to drive crank to change input speed and then enlarge output torque through the leverage mechanism such that the mechanism can achieve and simulate the mastication situation of the lower jaw. Occlusion mechanism is constructed by two four-bar linkages. The linkage size and the maximum output force of occlusion mechanism is decided by the limit swinging angles of the input bar and the output bar of the four-bar linkages, the transmission angle, and the geometric relationship at the limit swinging angles. For the methmatic model of occlusion mechanism, we use the method of vector loop to obtain the position, speed, and acceleration of linkages, then use Euler Lagrangian method to derive the kinetic energy and potential energy of the whole system and yield the Lagrange function. Finally, we applies the principle of virtual work and combine mathematical model of the servomotor to deduce the motion equation of occlusion mechanism. In this dissertation, we use the MATLAB/SIMULINK software to build the system model and apply the PID controller to control the occlusion mechanism such that the control objective of biting force can be achieved satisfactorily.