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Transmission angle in compliant four-bar mechanism

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Abstract

Compliant mechanisms have increasing popularity. However, very few studies are available on transmission characteristics of compliant mechanisms in the literature. For conventional rigid-body mechanisms, the transmission angle is used to define motion quality. On contrary, the classic transmission angle formula cannot easily be employed for compliant mechanisms, unlike rigid-body mechanisms. This paper, a generalized equation that defines the transmission angle of all types of compliant four-bar mechanisms is introduced. For all configurations of partially compliant four-bar mechanisms, the formula is altered. Four theorems in some special cases are devised. Deviation of the transmission angle of a fully compliant four-bar mechanism from its rigid-body counterpart is discussed. Finally, a prototype is built and the theoretical approaches are compared with experimental results. To the best of our knowledge, this is the first study on the transmission angle of a compliant four-bar mechanism.

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Data availability

The data that support the findings of this study are available from the corresponding author, Engin Tanık, upon reasonable request.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Hacettepe University, Ankara, Turkey

    Raşit Karakuş & Engin Tanık

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  1. Raşit Karakuş
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  2. Engin Tanık
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Correspondence to Engin Tanık.

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Karakuş, R., Tanık, E. Transmission angle in compliant four-bar mechanism. Int J Mech Mater Des 19, 713–727 (2023). https://doi.org/10.1007/s10999-023-09640-1

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  • DOI: https://doi.org/10.1007/s10999-023-09640-1

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