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| Format: | Recurso digital |
| Language: | English |
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Zenodo
2025
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| Online Access: | https://doi.org/10.5281/zenodo.17884745 |
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| _version_ | 1866901668417765376 |
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| author | Wells, James |
| author_facet | Wells, James |
| contents | <p>This work presents a theoretical and numerical analysis of an inertial actuation concept based on phase‑locked, counter‑rotating rotor sets that generate time‑asymmetric internal force waveforms. A clear distinction is made between two operational modes: (i) ground‑reaction motion, where net momentum arises through stick‑slip rectification at contact patches, and (ii) free‑space payload push, where net impulse is transferred to a separate mass via a timed couple/decouple interface. Conservation of momentum is shown to constrain isolated platforms to zero net impulse, while phase‑selective coupling enables constructive‑window impulse transfer consistent with physical laws.<br>The study develops Hann‑shaped force models, derives per‑cycle impulse expressions, and provides numerical examples demonstrating expected output acceleration. Energy accounting, timing requirements, and prototype validation plans are outlined, including ground cart tests and free‑space sled experiments. The results emphasize that all net external effects require an explicit reaction path, either through ground contact or payload coupling, and that the isolated platform cannot self‑accelerate in free space.</p> <p>This manuscript has not been peer‑reviewed.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_17884745 |
| institution | Zenodo |
| language | eng |
| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Asymmetric Inertial Forcing with Phase-Locked Counter-Rotating Rotors: Distinguishing Ground-Reaction Motion from Free-Space Payload Push Wells, James Mechanical engineering Mechanical equipment Mechanical engineering Mechanical vibration Dynamics Propulsion Rotating Machinery Control systems Physics Theoretical physics Energy conversion Energy management Momentum Conservation Actuation Mechanism <p>This work presents a theoretical and numerical analysis of an inertial actuation concept based on phase‑locked, counter‑rotating rotor sets that generate time‑asymmetric internal force waveforms. A clear distinction is made between two operational modes: (i) ground‑reaction motion, where net momentum arises through stick‑slip rectification at contact patches, and (ii) free‑space payload push, where net impulse is transferred to a separate mass via a timed couple/decouple interface. Conservation of momentum is shown to constrain isolated platforms to zero net impulse, while phase‑selective coupling enables constructive‑window impulse transfer consistent with physical laws.<br>The study develops Hann‑shaped force models, derives per‑cycle impulse expressions, and provides numerical examples demonstrating expected output acceleration. Energy accounting, timing requirements, and prototype validation plans are outlined, including ground cart tests and free‑space sled experiments. The results emphasize that all net external effects require an explicit reaction path, either through ground contact or payload coupling, and that the isolated platform cannot self‑accelerate in free space.</p> <p>This manuscript has not been peer‑reviewed.</p> |
| title | Asymmetric Inertial Forcing with Phase-Locked Counter-Rotating Rotors: Distinguishing Ground-Reaction Motion from Free-Space Payload Push |
| topic | Mechanical engineering Mechanical equipment Mechanical engineering Mechanical vibration Dynamics Propulsion Rotating Machinery Control systems Physics Theoretical physics Energy conversion Energy management Momentum Conservation Actuation Mechanism |
| url | https://doi.org/10.5281/zenodo.17884745 |