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Structural Design and Control Strategy Analysis of Micro/Nano Transmission Platform |
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| Authors: | Lin Chao Ji Jiuxiang Tao Youtao Huo Dehong Cai Lizhong Cheng Kai |
| Institution: | 1. State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, 400030, P.R.China 2. School of Mechanical and Systems Engineering, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK 3. Advanced Manufacturing and Enterprise Engineering Department, Brunel University,Uxbridge, Middlesex UB8 3PH, UK |
| Abstract: | A fully flexure micro/nano transmission platform(MNTP)which has five degrees of freedom is designed on the basis of bridge type amplification mechanism.According to the kinematic theory and the elastic beam theory,the theoretical output displacement equation of the platform is derived,and then piezoelectric actuator(PZT)is calibrated.Meanwhile,a full closed-loop control strategy of the platform is established using the feedforward proportional-integral-derivative(PID)compound control algorithm based on the Preisach model.Moreover,the total transfer function of the micro positioning system is derived,and the calculation method of output signal is acquired.Finally,the theoretical output displacement is verified by finite element analysis(FEA)and positioning experiments. |
| Keywords: | bridge type amplification mechanism (BTAM) micro/nano transmission platform (MNTP) piezoelectric actuator (PZT) finite element analysis (FEA) control strategies |
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