Experimental Investigation of the Dynamics of a Slider-Crank Mechanism With Local Linear Force Input

Beckers Jarl; Verrelst Bjorn; Contino FrancescoVan Mierlo Joeri

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Experimental Investigation of the Dynamics of a Slider-Crank Mechanism With Local Linear Force Input

机译：Experimental Investigation of the Dynamics of a Slider-Crank Mechanism With Local Linear Force Input

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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, actuation 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 multibody 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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《Journal of Applied Mechanics: Transactions of the ASME》 |2022年第4期|共10页
作者
Beckers Jarl; Verrelst Bjorn; Contino FrancescoVan Mierlo Joeri;
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作者单位

Thermo and Fluid Dynamics (FLOW) Faculty of Engineering, Vrije Universiteit Brussel (VUB), Pleinlaan;

Robotics & Multibody Mechanics, Research Group (R & MM), Faculty of Mechanical Engineering, Vrije Universiteit Brussel;

Institute of Mechanics, Materials and Civil Engineering (iMMC), Université Catholique de Louvain (UCLouvain), Place du LevantMobility Logistic and Automotive Technology Research Group (MOBI), Department of Electrical Engineering and Energy Technology (ETEC), Vrije Universiteit Brussel, Pleinlaan;

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正文语种英语
中图分类应用力学;
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Resonance; Stress; Springs; Mechanical structures; Transients (Dynamics); Kinematics;

Experimental Investigation of the Dynamics of a Slider-Crank Mechanism With Local Linear Force Input

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