To tackle the challenges of drive component selection in electric cylinder lifting servo mechanisms with nonlinear dynamics characteristics, an efficient selection method of drive components was proposed based on peak parameter matching. The analytical formulae for the mechanism's inertial torque, Coriolis torque, unbalanced torque, frictional torque, and environmental loads were obtained via Lagrange dynamics, explicitly revealing the computational complexity involved. Then, leveraging peak external loads and mechanism arm lengths, along with the system's nonlinear characteristics, an efficient selection approach was formulated. Finally, the application constraints were established based on the load-to-drive mass ratio, when the mechanism's load-to-drive ratio exceeded the critical value, the method might be applied. Simulation results demonstrate that based on the time and spatial complexity,the computational efficiency of the efficient selection method is 1629 times that of the conventional method under a sampling step of 0.01 rad. Experimental results confirm that the electric cylinder lifting servo mechanism's load-to-drive ratio is as 15.37, which is greater than the critical value of 11.68, achieving 1 rad/s² acceleration under sinusoidal instructions and 0.785 rad/s velocity under step instructions.
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