In this research, a time-proven concept from the aircraft industry supports development and application of an electrohydraulic actuator (EHA) in stationary application. EHA allows to achieve high power density and high performance in a compact package as well as flexibility in system architecture for stationary applications. The electrohydraulic actuator can eliminate hoses, fittings, valves and fixtures and is easy to integrate into larger systems. Due to good energy efficiency, cooling usually is not required. However, a thermo-dynamic analysis clearly indicates that the electric machine is acting as a high temperature heat source, while the hydraulics of the actuator maintain relatively lower temperature. Therefore, this paper targets the simulation of the thermal behavior of a pump-controlled actuator by means of lumped parameter model in order to predict the operational temperature. The developed model is validated against measurements utilizing thermocouples under various operative conditions. Conclusions are drawn concerning thermal behavior and energy dissipation of the proposed pump-controlled actuator.
|Title of host publication||Proceedings of the 15th Scandinavian International conference on fluid power, SICFP'17|
|Subtitle of host publication||Fluid Power in the Digital Age|
|Editors||Petter Krus, Liselott Ericson, Magnus Sethson|
|Number of pages||6|
|Publication status||Published - 7 Jun 2017|
|MoE publication type||B3 Non-refereed article in conference proceedings|
|Event||Scandinavian International Conference on Fluid Power - Lindköping, Sweden|
Duration: 7 Jun 2017 → 9 Jun 2017
Conference number: 15
|Name||Linköping Electronic Conference Proceedings|
|Conference||Scandinavian International Conference on Fluid Power|
|Period||07/06/2017 → 09/06/2017|
Minav, T., & Pietola, M. (2017). A study on thermal behavior of pump-controlled actuator. In P. Krus, L. Ericson, & M. Sethson (Eds.), Proceedings of the 15th Scandinavian International conference on fluid power, SICFP'17: Fluid Power in the Digital Age (pp. 333-338). (Linköping Electronic Conference Proceedings; No. 144). Linköping University.