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A Modeling Strategy for Predicting the Properties of Paraffin Wax Actuators

Institute for Production Engineering and Forming Machines, Technische Universität Darmstadt, 64287 Darmstadt, Germany
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Actuators 2018, 7(4), 81; https://doi.org/10.3390/act7040081
Received: 26 October 2018 / Revised: 16 November 2018 / Accepted: 27 November 2018 / Published: 28 November 2018
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Abstract

In production processes, many adjustment tasks have to be carried out manually. In order to automate these activities, there is a need for cost and space efficient actuators that can provide comparatively high forces. This paper presents a novel actuator concept based on the phase change material paraffin wax. Furthermore, a numerical modelling strategy is introduced enabling the prediction of actuator properties. The model considers paraffin wax as a deformable body. The temperature-dependent volume expansion data of the paraffin wax is obtained experimentally to allow for a realistic description of the thermal-mechanical properties. The simulation is verified, using experimental data from actuators with varying paraffin wax volumes. With a maximum deviation of 6%, the simulations show a good agreement with the experiments. View Full-Text
Keywords: paraffin wax; actuator; phase change material; simulation; FEM paraffin wax; actuator; phase change material; simulation; FEM
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Mann, A.; Bürgel, C.M.; Groche, P. A Modeling Strategy for Predicting the Properties of Paraffin Wax Actuators. Actuators 2018, 7, 81.

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