Distribution flexibility type flapping wing driving mechanism and design method thereof

The invention discloses a distributed flexibility type flapping wing driving mechanism and a design method thereof, and belongs to the technical field of flapping wing aircrafts. The distributed flexibility type flapping wing driving mechanism comprises a flapping wing driving mechanism mounting frame, a piezoelectric bimorph driver and a distributed flexibility type transmission chain, wherein the piezoelectric bimorph driver and the distributed flexibility type transmission chain are arranged on the flapping wing driving mechanism mounting frame; the distributed flexibility type transmission chain comprises a pair of vertical elastic sheets and a transverse elastic sheet, and is provided with two flapping arms and a flapping transmission part; the fixed end of the piezoelectric bimorph driver is fixed at the rear end of the distributed flexibility type transmission chain; the method comprises the following steps: a, simplifying a piezoelectric bimorph driver into an equivalent single-degree-of-freedom secon