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  3. Rotary Electromechanical System Integrating Non-reciprocal Memory And Combinational Logic.
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  3. Rotary Electromechanical System Integrating Non-reciprocal Memory And Combinational Logic.

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Rotary Electromechanical System Integrating Non-Reciprocal Memory and Combinational Logic.

Shujia Chen1, Don Straney1, Damiano Pasini1

  • 1Department of Mechanical Engineering, McGill University, Montreal, Canada.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|January 23, 2026

View abstract on PubMed

Summary
This summary is machine-generated.

This study presents a novel rotary electromechanical system that integrates mechanical memory with logic operations for sequential decision-making. This finite-state-machine framework enables reprogrammable control in physically embodied intelligence.

Keywords:
electromechanical systemnon‐volatile mechanical computingrotation‐driven bistable mechanismsequential logic

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Area of Science:

  • Robotics and Mechanical Engineering
  • Computer Science
  • Materials Science

Background:

  • Mechanical computing utilizes bistable mechanisms for memory, enabling history-dependent behavior in embodied intelligence.
  • Current systems lack integration of mechanical memory with logic operations for sequential processing, hindering advanced computational tasks.

Purpose of the Study:

  • To introduce a rotary electromechanical computing system that unifies non-reciprocal mechanical memory with combinational logic.
  • To enable reprogrammable sequential decision-making within a finite-state-machine framework.

Main Methods:

  • Developed serially coupled rotary bistable units to create history-dependent, non-reciprocal mechanical memory.
  • Encoded binary states via geometric orientation, transduced through a conductive network for logic operations.
  • Configured the system as a four-bit finite-state-machine with reconfigurable state-transition rules.

    • Main Results:

    • Demonstrated a unified system for mechanical memory and logic operations.
    • Achieved reprogrammable sequential decision-making in a single finite-state-machine framework.
    • Showcased functionalities including digital combination locking, in-memory computation, and digital control.

    Conclusions:

    • The rotary electromechanical system successfully integrates non-reciprocal state evolution and electrical logic in hardware.
    • This work provides a pathway for physically embedded intelligence in next-generation electromechanical systems.