Simplified Thermal Model of Disk-Shaped Automotive Smart Braking Actuators

Graffeo, Federica; Vaschetto, Silvio; Miotto, A.; Carbone, Fabio; Tenconi, Alberto; Agamloh, Emmanuel; Cavagnino, Andrea

doi:10.1109/ecce50734.2022.9947428

Cited by 1 publication

(1 citation statement)

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“…It is important to note that formulating the design procedure is non-trivial and requires a good balance between the models' fidelity and computational effort required to derive a feasible machine design. This problem is further exacerbated when analysing fault-tolerant machines, where alternative operating scenarios need to be considered [4]- [13], [24]- [25]. Frequently, design candidates from such a design process require further assessment to provide a more detailed and definitive insight into the machine performance.…”

Section: Introductionmentioning

confidence: 99%

Thermal Evaluation of a Short-Operating-Duty Dual-Lane Fault-Tolerant Actuator for Aerospace Applications

Wróbel¹,

Mecrow²,

Benarous³

2023

IEEE Trans. on Ind. Applicat.

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This paper presents design considerations for a short-operating-duty, fault-tolerant actuator for aerospace applications, with the research focus placed on thermal management. A fully enclosed and naturally ventilated permanent magnet (PM) synchronous machine with a dual-lane modular stator-winding topology is analysed. The aim is to assess alternative solutions for satisfying both sufficient heat removal and simple and robust machine construction design targets. The thermal management is particularly challenging because there are limited means for an effective heat removal from the machine body. Selected design choices impacting the machine's thermal behaviour, including alternative electrical insulation systems, winding impregnation quality, thermal contact interfaces and different winding and housing configurations are investigated. A three-dimensional (3D) transient finite element (FE) analysis has been carried out alongside an experiment informed low-order thermal network sensitivity evaluation. The theoretical body of work has been supplemented with thermal tests on an array of motorettes fabricated using alternative electrical insulation systems. The theoretical and experimental findings suggest that the winding impregnation quality has a dominant impact on the actuator's thermal behaviour, where both heat removal path (thermal resistance) and heat storage (thermal capacitance) need to be well balanced for the short-duty transient operation under a faulted condition.

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