The variable block model for the synthesis of the planar link mechanism of the present invention comprises: three rectangular blocks disposed within a design area for designing the planar link mechanism and discretized; A plurality of rigid variable springs connecting the rectangular blocks; And a plurality of intermediate nodes disposed at intersections of the rectangular blocks to connect the rigid variable springs to the rectangular blocks. According to the present invention, it is possible to perform mechanism synthesis of various kinds of four-section link mechanisms through the variable block model, thereby reducing the troublesome and time-consuming loss of the iterative design process required for shape synthesis or dimension synthesis of the mechanism. have.
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