A Combined Softening and Hardening Mechanism for Low Frequency Human Motion Energy Harvesting Application
Figure 4
(a) Assembly drawing of the proposed mechanism and (b) the arrangement of the magnets. The left-hand side configuration consists of both top and bottom magnets while the right hand side configuration only consists of bottom magnet. (, and are the distances between the magnets, , and represent the magnetic restoring forces, is the displacement of the left hand side mass, is the displacement of the right hand side mass and is input displacement of the base).
