Electromagnetic bionic jumping robot based on asymmetric modal jump of soft beam

By utilizing electromagnetic bionic jumping robot based on asymmetric modal leap of a flexible beam, and leveraging electromagnetic drive and the buckling characteristics of a flexible bistable beam, asymmetric forward leaping motion with high mobility and large span is achieved, solving the problems of small horizontal span and symmetrical dynamic trajectory in existing jumping robots.

CN122442706AActive Publication Date: 2026-07-24ZHEJIANG UNIV
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Patent Information

Application Number
CN202610924142.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-25
Publication Date
2026-07-24
Estimated Expiration
2046-06-25

AI Technical Summary

Technical Problem

Existing bistable jumping robots are mostly centrally symmetrical in structure. The impulse generated by energy release can only provide vertical bouncing in place, with very small horizontal span. They also cannot simulate the asymmetric dynamic trajectory of real biological jumping, making it difficult to achieve large-span directional leaps under a single driving source.

Method used

An electromagnetic biomimetic jumping robot based on asymmetric modal leaps of a flexible beam is adopted. By combining electromagnetic drive with the buckling characteristics of a flexible bistable beam, the flexible actuator can achieve leaps between different buckling modes through the cooperation of electromagnetic coils and driving magnets, generating asymmetric forward leaping motions.

Benefits of technology

It achieves asymmetrical forward leaping motions mimicking felines. The robot's single jump span can reach 5-7 times its own body length, possessing high mobility and rapid energy release capabilities. It avoids the complexity and wear of mechanical transmission, and realizes continuous high-frequency jumping maneuvers.

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Abstract

The invention belongs to the technical field of micro-robot and bionic soft body actuation, and discloses an electromagnetic bionic jumping robot based on soft beam asymmetric modal jump. The outer frame is formed by oppositely combining two symmetrical frame half bodies, the electromagnetic driving module is contained in the middle of the outer frame, parallel hollow outer sliding rails extend from the two sides of the outer frame, and the sliding frame is slidably connected to the hollow outer sliding rails at the rear end of the outer frame in a sleeving mode; the flexible driver is a continuum soft beam, one end of the flexible driver is inserted into the sliding frame, and the front side bionic supporting leg and the rear side bionic supporting leg are arranged on the front side and the rear side of a midspan body of the flexible driver. The electromagnetic driving module comprises an electromagnetic coil and a driving magnet, and the power output end of the driving magnet is in rigid transmission connection with the sliding frame; the mode switching restraint module comprises a mode switching magnet fixed to the outer frame and a magnet fixed to the main beam of the flexible driver. The electromagnetic bionic jumping robot provided by the invention is a high-maneuverability jumping robot capable of simulating asymmetric forward flapping actions of felines.
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