Abstract
Continuously Variable Transmissions (CVT) can serve as subsystems for a variety of machineries and robotic systems. A compliant CVT mechanism based on the warping of twisting beams is presented here. The design works based on the demonstrated fact that the twist on one side of a beam can be transferred via sectional warping and propagate across a rotational constraint in the middle of the beam to create a reverse twist on the opposite side. In the proposed compliant CVT the transmission ratio is dependent on the position of the middle rotational constraint which can vary in a continuous range. We have demonstrated this concept and its relation to the twisting beam's warping constant, as well as its functionality for different transmission ratios of 1:4 to 4:1. An analytical model as well as a Finite Element Analysis (FEA) and experiments are employed to characterize and verify the concept and its relation to the warping constant.
Original language | English |
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Article number | 105281 |
Number of pages | 11 |
Journal | Mechanism and Machine Theory |
Volume | 184 |
DOIs | |
Publication status | Published - 2023 |
Keywords
- Compliant mechanism
- Continuously Variable Transmission (CVT)
- Twisting beams
- Warping