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The challenge of upscaling paraffin wax actuators

Mann, Arne and Germann, Thiemo and Ruiter, Mats and Groche, Peter (2020):
The challenge of upscaling paraffin wax actuators.
In: Materials & Design, 190, Elsevier, ISSN 02641275,
DOI: 10.25534/tuprints-00011600,
[Article]

Abstract

Higher levels of automation necessitate active spacer and adjusting elements generating high stroke forces. For these, the multitude of applications inside a manufacturing system requires a space- and cost-effective design. Conventional actuator concepts strugglewith these demands. A new and efficient actuator concept for establishing closed-loop control circuits is needed. This article presents a newactuator concept, based on the phase change material paraffin wax. Although paraffin wax actuators are a convenient solution for microactuators, high force macroscopic actuators are not established yet. On a macroscopic scale the design of the actuator housing and the manufacturing process are challenging. The presented concept consists of a closed housing, which surrounds the phase change material. A compact actuator design without sealed moveable parts is realized. Thus, the actuators provide high axial forces. Compared to existing solutions an increase in performance by a factor of 7 could be achieved. The essential actuator structure is introduced, characterized and the challenges inmanufacturing are discussed. A possible application is demonstrated by a thermal compensation element activated by energy from the surroundings.

Item Type: Article
Erschienen: 2020
Creators: Mann, Arne and Germann, Thiemo and Ruiter, Mats and Groche, Peter
Origin: Secondary publication via sponsored Golden Open Access
Title: The challenge of upscaling paraffin wax actuators
Language: English
Abstract:

Higher levels of automation necessitate active spacer and adjusting elements generating high stroke forces. For these, the multitude of applications inside a manufacturing system requires a space- and cost-effective design. Conventional actuator concepts strugglewith these demands. A new and efficient actuator concept for establishing closed-loop control circuits is needed. This article presents a newactuator concept, based on the phase change material paraffin wax. Although paraffin wax actuators are a convenient solution for microactuators, high force macroscopic actuators are not established yet. On a macroscopic scale the design of the actuator housing and the manufacturing process are challenging. The presented concept consists of a closed housing, which surrounds the phase change material. A compact actuator design without sealed moveable parts is realized. Thus, the actuators provide high axial forces. Compared to existing solutions an increase in performance by a factor of 7 could be achieved. The essential actuator structure is introduced, characterized and the challenges inmanufacturing are discussed. A possible application is demonstrated by a thermal compensation element activated by energy from the surroundings.

Journal or Publication Title: Materials & Design
Journal volume: 190
Publisher: Elsevier
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institut für Produktionstechnik und Umformmaschinen (PtU)
Date Deposited: 05 Apr 2020 19:57
DOI: 10.25534/tuprints-00011600
Official URL: https://doi.org/10.1016/j.matdes.2020.108580
URN: urn:nbn:de:tuda-tuprints-116005
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