Experimental Investigation of the Dynamics of a Slider-Crank Mechanism With Local Linear Force Input
(2022) Journal of Applied Mechanics — Vol. 89, n° 4, p. 41002 (2022)
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- Abstract
- Conventional implementation of slider-crank mechanisms result in high loads transmitted through the mechanical structure, inhibiting the design of compact and oil-free machines. Therefore, this research proposes to step away from the conventional, i.e., rotative, actua-tion and to investigate local linear actuation on the slider-component directly, while maintaining the kinematic link of the slider-crank configuration. In this work, the local linear actuating principle is evaluated experimentally where the goal is to obtain a continuous movement of the slider mechanism where Top Dead Center & Bottom Dead Center are reached and to minimize the loads transmitted through the mechanical structure. The non-isochronous transient behavior of a slider-crank mechanism loaded with a spring-damper element is detailed as well as the optimal working conditions at steady-state to achieve a reduced loading of the kinematic structure. By matching the operating frequency and resonance frequency of the system, a reduction of the loads transmitted through the system by 63% of the nominal spring load can be achieved. Further experimental (and mul-tibody mechanical) investigation on the influence of flywheel exposes a clear trade-off between the sensitivity of the system and the transmission of the actuation force through the kinematic link.
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Beckers, J., Verrelst, B., Contino, F., & Van Mierlo, J. (2022). Experimental Investigation of the Dynamics of a Slider-Crank Mechanism With Local Linear Force Input. Journal of Applied Mechanics, 89(4), 41002. https://doi.org/10.1115/1.4053146]10.1115/1.4053146 (Original work published 2022)