Optimization design of microstroke table for gecko adhesives actuating

Gecko-inspired adhesive pads have a wide range of application with their characteristics of low preload, strong adhesion and easy detachment. However, the appearance of adhesive force needs adhesive pads with a micro-scale displacement to engage. Therefore, the microstroke table must be designed. In order to have a better adaptability for several surface structures, it is necessary to optimize the microstroke table. In this paper, the relationship between the model of the microstroke table and three kinds of surface structures has been presented. On this basis, key parameters of the model has been optimized by the Sequential Quadratic Programming (SQP) method. With the optimized parameters, the microstroke table can have a better adaptability for different kinds of surface structures and improve the efficiency of the driving energy.